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Matematicheskiye_obosnovani.../lab2/test.js
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2025-01-29 16:04:11 +03:00

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import { BigInteger } from "./index.js"
console.group("Addition and subtraction")
console.group("by 0 is the identity")
console.assert(BigInteger.from("1").add(BigInteger.from("0")).toString() === "1");
console.assert(BigInteger.from("-1").add(BigInteger.from("0")).toString() === "-1");
console.assert(BigInteger.from("0").add(BigInteger.from("-1")).toString() === "-1");
console.assert(BigInteger.from("0").add(BigInteger.from("153")).toString() === "153");
console.assert(BigInteger.from("153").add(BigInteger.from("0")).toString() === "153");
console.assert(BigInteger.from("0").add(BigInteger.from("-153")).toString() === "-153");
console.assert(BigInteger.from("-153").add(BigInteger.from("0")).toString() === "-153");
console.assert(BigInteger.from("0").add(BigInteger.from("9844190321790980841789")).toString() === "9844190321790980841789");
console.assert(BigInteger.from("9844190321790980841789").add(BigInteger.from("0")).toString() ==="9844190321790980841789");
console.assert(BigInteger.from("0").add(BigInteger.from("-9844190321790980841789")).toString() ==="-9844190321790980841789");
console.assert(BigInteger.from("-9844190321790980841789").add(BigInteger.from("0")).toString() === "-9844190321790980841789");
console.assert(BigInteger.from("1").sub(BigInteger.from("0")).toString() === "1");
console.assert(BigInteger.from("-1").sub(BigInteger.from("0")).toString() === "-1");
console.assert(BigInteger.from("153").sub(BigInteger.from("0")).toString() === "153");
console.assert(BigInteger.from("-153").sub(BigInteger.from("0")).toString() === "-153");
console.assert(BigInteger.from("9844190321790980841789").sub(BigInteger.from("0")).toString() === "9844190321790980841789");
console.assert(BigInteger.from("-9844190321790980841789").sub(BigInteger.from("0")).toString() === "-9844190321790980841789");
console.groupEnd();
console.group("addition by inverse is 0, subtraction by self is 0");
console.assert(BigInteger.from("5").sub(BigInteger.from("5")).toString() === "0");
console.assert(BigInteger.from("5").add(BigInteger.from("-5")).toString() === "0");
console.assert(BigInteger.from("10000000000000000").sub(BigInteger.from("10000000000000000")).toString() === "0");
console.assert(BigInteger.from("10000000000000000").add(BigInteger.from("-10000000000000000")).toString() === "0");
console.groupEnd();
console.group("handles signs correctly");
console.assert(BigInteger.from("1").add(BigInteger.from("1")).toString() === "2");
console.assert(BigInteger.from("1").add(BigInteger.from("-5")).toString() === "-4");
console.assert(BigInteger.from("-1").add(BigInteger.from("5")).toString() === "4");
console.assert(BigInteger.from("-1").add(BigInteger.from("-5")).toString() === "-6");
console.assert(BigInteger.from("5").add(BigInteger.from("1")).toString() === "6");
console.assert(BigInteger.from("5").add(BigInteger.from("-1")).toString() === "4");
console.assert(BigInteger.from("-5").add(BigInteger.from("1")).toString() === "-4");
console.assert(BigInteger.from("-5").add(BigInteger.from("-1")).toString() === "-6");
console.assert(BigInteger.from("1").sub(BigInteger.from("1")).toString() === "0");
console.assert(BigInteger.from("1").sub(BigInteger.from("-5")).toString() === "6");
console.assert(BigInteger.from("-1").sub(BigInteger.from("5")).toString() === "-6");
console.assert(BigInteger.from("-1").sub(BigInteger.from("-5")).toString() === "4");
console.assert(BigInteger.from("5").sub(BigInteger.from("1")).toString() === "4");
console.assert(BigInteger.from("5").sub(BigInteger.from("-1")).toString() === "6");
console.assert(BigInteger.from("-5").sub(BigInteger.from("1")).toString() === "-6");
console.assert(BigInteger.from("-5").sub(BigInteger.from("-1")).toString() === "-4");
console.assert(BigInteger.from("1234698764971301").add(BigInteger.from("5")).toString() === "1234698764971306");
console.assert(BigInteger.from("1234698764971301").add(BigInteger.from("-5")).toString() === "1234698764971296");
console.assert(BigInteger.from("-1234698764971301").add(BigInteger.from("5")).toString() === "-1234698764971296");
console.assert(BigInteger.from("-1234698764971301").add(BigInteger.from("-5")).toString() === "-1234698764971306");
console.assert(BigInteger.from("5").add(BigInteger.from("1234698764971301")).toString() === "1234698764971306");
console.assert(BigInteger.from("5").add(BigInteger.from("-1234698764971301")).toString() === "-1234698764971296");
console.assert(BigInteger.from("-5").add(BigInteger.from("1234698764971301")).toString() === "1234698764971296");
console.assert(BigInteger.from("-5").add(BigInteger.from("-1234698764971301")).toString() === "-1234698764971306");
console.assert(BigInteger.from("1234698764971301").sub(BigInteger.from("5")).toString() === "1234698764971296");
console.assert(BigInteger.from("1234698764971301").sub(BigInteger.from("-5")).toString() === "1234698764971306");
console.assert(BigInteger.from("-1234698764971301").sub(BigInteger.from("5")).toString() === "-1234698764971306");
console.assert(BigInteger.from("-1234698764971301").sub(BigInteger.from("-5")).toString() === "-1234698764971296");
console.assert(BigInteger.from("5").sub(BigInteger.from("1234698764971301")).toString() === "-1234698764971296");
console.assert(BigInteger.from("5").sub(BigInteger.from("-1234698764971301")).toString() === "1234698764971306");
console.assert(BigInteger.from("-5").sub(BigInteger.from("1234698764971301")).toString() === "-1234698764971306");
console.assert(BigInteger.from("-5").sub(BigInteger.from("-1234698764971301")).toString() === "1234698764971296");
console.assert(BigInteger.from("1234567890987654321").add(BigInteger.from("9876543210123456789")).toString() === "11111111101111111110");
console.assert(BigInteger.from("1234567890987654321").add(BigInteger.from("-9876543210123456789")).toString() === "-8641975319135802468");
console.assert(BigInteger.from("-1234567890987654321").add(BigInteger.from("9876543210123456789")).toString() === "8641975319135802468");
console.assert(BigInteger.from("-1234567890987654321").add(BigInteger.from("-9876543210123456789")).toString() === "-11111111101111111110");
console.assert(BigInteger.from("9876543210123456789").add(BigInteger.from("1234567890987654321")).toString() === "11111111101111111110");
console.assert(BigInteger.from("9876543210123456789").add(BigInteger.from("-1234567890987654321")).toString() === "8641975319135802468");
console.assert(BigInteger.from("-9876543210123456789").add(BigInteger.from("1234567890987654321")).toString() === "-8641975319135802468");
console.assert(BigInteger.from("-9876543210123456789").add(BigInteger.from("-1234567890987654321")).toString() === "-11111111101111111110");
console.assert(BigInteger.from("1234567890987654321").sub(BigInteger.from("9876543210123456789")).toString() === "-8641975319135802468");
console.assert(BigInteger.from("1234567890987654321").sub(BigInteger.from("-9876543210123456789")).toString() === "11111111101111111110");
console.assert(BigInteger.from("-1234567890987654321").sub(BigInteger.from("9876543210123456789")).toString() === "-11111111101111111110");
console.assert(BigInteger.from("-1234567890987654321").sub(BigInteger.from("-9876543210123456789")).toString() === "8641975319135802468");
console.assert(BigInteger.from("9876543210123456789").sub(BigInteger.from("1234567890987654321")).toString() === "8641975319135802468");
console.assert(BigInteger.from("9876543210123456789").sub(BigInteger.from("-1234567890987654321")).toString() === "11111111101111111110");
console.assert(BigInteger.from("-9876543210123456789").sub(BigInteger.from("1234567890987654321")).toString() === "-11111111101111111110");
console.assert(BigInteger.from("-9876543210123456789").sub(BigInteger.from("-1234567890987654321")).toString() === "-8641975319135802468");
console.assert(BigInteger.from("-9007199254740991").add(BigInteger.from("-1")).toString() === "-9007199254740992");
console.assert(BigInteger.from("-5616421592529327000000000000000").sub(BigInteger.from("987682355516543")).toString() === "-5616421592529327987682355516543")
console.assert(BigInteger.from("-0").add(BigInteger.from("10000000000000000")).toString() === "10000000000000000");
console.assert(BigInteger.from("-0").add(BigInteger.from("-1")).toString() ==="-1");
console.groupEnd();
console.group("carries over correctly");
{
const fibs = ["1", "1", "2", "3", "5", "8", "13", "21", "34", "55", "89", "144", "233", "377", "610", "987", "1597", "2584", "4181", "6765", "10946", "17711", "28657", "46368", "75025", "121393", "196418", "317811", "514229", "832040", "1346269", "2178309", "3524578", "5702887", "9227465", "14930352", "24157817", "39088169", "63245986", "102334155", "165580141", "267914296", "433494437", "701408733", "1134903170", "1836311903", "2971215073", "4807526976", "7778742049", "12586269025"];
const number = BigInteger.from("1");
const last = BigInteger.from("1");
for (let i = 2; i < 50; i++) {
number.add(last);
last.assign(number.copy().sub(last));
console.assert(number.toString() === fibs[i]);
}
}
console.assert(BigInteger.from("9007199254740991").add(BigInteger.from("1")).toString() === "9007199254740992");
console.assert(BigInteger.from("999999999999999999999000000000000000000000").add(BigInteger.from("1000000000000000000000")).toString() === "1000000000000000000000000000000000000000000");
console.assert(BigInteger.from("100000000000000000000").add(BigInteger.from("9007199254740972")).toString() === "100009007199254740972");
console.assert(BigInteger.from("-9007199254740983").add(BigInteger.from("-9999999999999998")).toString() === "-19007199254740981");
console.assert(BigInteger.from("100000000000000000000000000000000000").sub(BigInteger.from("999999999999999999")).toString() === "99999999999999999000000000000000001");
console.assert(BigInteger.from("10000000010000000").sub(BigInteger.from("10000000")).toString() === "10000000000000000");
console.groupEnd();
console.group("work");
console.assert(BigInteger.from("10").add(BigInteger.from("10")).toString() === "20");
console.assert(BigInteger.from("-10000000000000000").add(BigInteger.from("0")).toString() === "-10000000000000000");
console.assert(BigInteger.from("0").add(BigInteger.from("10000000000000000")).toString() === "10000000000000000");
console.assert(BigInteger.from("9999999").add(BigInteger.from("1")).toString() === "10000000");
console.assert(BigInteger.from("10000000").sub(BigInteger.from("1")).toString() === "9999999");
console.assert(BigInteger.from("-1000000000000000000000000000000000001").add(BigInteger.from("1000000000000000000000000000000000000")).toString() === "-1");
console.assert(BigInteger.from("100000000000000000002222222222222222222").sub(BigInteger.from("100000000000000000001111111111111111111")).toString() === "1111111111111111111");
console.assert(BigInteger.from("1").add(BigInteger.from("0")).toString() === "1");
console.assert(BigInteger.from("10").add(BigInteger.from("10000000000000000")).toString() === "10000000000000010");
console.assert(BigInteger.from("10000000000000000").add(BigInteger.from("10")).toString() === "10000000000000010");
console.assert(BigInteger.from("10000000000000000").add(BigInteger.from("10000000000000000")).toString() === "20000000000000000");
console.groupEnd();
console.groupEnd();
console.group("Multiplication")
console.group("by 0 equals 0");
// console.assert(BigInteger.from("0").mul(BigInteger.from("0")).toString() === "0");
// console.assert(BigInteger.from("0").mul(BigInteger.from("-0")).toString() === "0");
// console.assert(BigInteger.from("1").mul(BigInteger.from("0")).toString() === "-0");
// console.assert(BigInteger.from("-0").mul(BigInteger.from("1")).toString() === "0");
// console.assert(BigInteger.from("1234567890987654321").mul(BigInteger.from("0")).toString() ==="-0");
// console.assert(BigInteger.from("-0").mul(BigInteger.from("1234567890987654321")).toString() === "0");
// console.assert(BigInteger.from("0").mul(BigInteger.from("-1234567890987654321")).toString() === "0");
console.groupEnd();
console.group("by 1 is the identity")
console.assert(BigInteger.from("1").mul(BigInteger.from("1")).toString() === "1");
console.assert(BigInteger.from("-1").mul(BigInteger.from("1")).toString() === "-1");
console.assert(BigInteger.from("1").mul(BigInteger.from("-1")).toString() === "-1");
console.assert(BigInteger.from("1").mul(BigInteger.from("153")).toString() === "153");
console.assert(BigInteger.from("153").mul(BigInteger.from("1")).toString() === "153");
console.assert(BigInteger.from("1").mul(BigInteger.from("-153")).toString() === "-153");
console.assert(BigInteger.from("-153").mul(BigInteger.from("1")).toString() === "-153");
console.assert(BigInteger.from("1").mul(BigInteger.from("9844190321790980841789")).toString() === "9844190321790980841789");
console.assert(BigInteger.from("9844190321790980841789").mul(BigInteger.from("1")).toString() === "9844190321790980841789");
console.assert(BigInteger.from("1").mul(BigInteger.from("-9844190321790980841789")).toString() === "-9844190321790980841789");
console.assert(BigInteger.from("-9844190321790980841789").mul(BigInteger.from("1")).toString() === "-9844190321790980841789");
console.groupEnd();
console.group("handles signs correctly");
console.assert(BigInteger.from("100").mul(BigInteger.from("100")).toString() === "10000");
console.assert(BigInteger.from("100").mul(BigInteger.from("-100")).toString() === "-10000");
console.assert(BigInteger.from("-100").mul(BigInteger.from("100")).toString() === "-10000");
console.assert(BigInteger.from("-100").mul(BigInteger.from("-100")).toString() === "10000");
console.assert(BigInteger.from("13579").mul(BigInteger.from("163500573666152634716420931676158")).toString() === "2220174289812686626814279831230549482");
console.assert(BigInteger.from("13579").mul(BigInteger.from("-163500573666152634716420931676158")).toString() === "-2220174289812686626814279831230549482");
console.assert(BigInteger.from("-13579").mul(BigInteger.from("163500573666152634716420931676158")).toString() === "-2220174289812686626814279831230549482");
console.assert(BigInteger.from("-13579").mul(BigInteger.from("-163500573666152634716420931676158")).toString() === "2220174289812686626814279831230549482");
console.assert(BigInteger.from("163500573666152634716420931676158").mul(BigInteger.from("13579")).toString() === "2220174289812686626814279831230549482");
console.assert(BigInteger.from("163500573666152634716420931676158").mul(BigInteger.from("-13579")).toString() === "-2220174289812686626814279831230549482");
console.assert(BigInteger.from("-163500573666152634716420931676158").mul(BigInteger.from("13579")).toString() === "-2220174289812686626814279831230549482");
console.assert(BigInteger.from("-163500573666152634716420931676158").mul(BigInteger.from("-13579")).toString() === "2220174289812686626814279831230549482");
console.assert(BigInteger.from("163500573666152634716420931676158").mul(BigInteger.from("-1")).toString() === "-163500573666152634716420931676158");
console.assert(BigInteger.from("1234567890987654321").mul(BigInteger.from("132435465768798")).toString() === "163500573666152634716420931676158");
console.assert(BigInteger.from("1234567890987654321").mul(BigInteger.from("-132435465768798")).toString() === "-163500573666152634716420931676158");
console.assert(BigInteger.from("-1234567890987654321").mul(BigInteger.from("132435465768798")).toString() === "-163500573666152634716420931676158");
console.assert(BigInteger.from("-1234567890987654321").mul(BigInteger.from("-132435465768798")).toString() === "163500573666152634716420931676158");
console.groupEnd();
console.group("carries over correctly");
console.assert(BigInteger.from("50000005000000").mul(BigInteger.from("10000001")).toString() === "500000100000005000000");
console.assert(BigInteger.from("50000005000000").mul(BigInteger.from("10000001")).toString() === "500000100000005000000");
console.groupEnd();
console.groupEnd();
console.group("Division")
console.group("by 1 is the identity");
console.assert(BigInteger.from("1").div(BigInteger.from("1")).toString() === "1");
console.assert(BigInteger.from("-1").div(BigInteger.from("1")).toString() === "-1");
console.assert(BigInteger.from("1").div(BigInteger.from("-1")).toString() === "-1");
console.assert(BigInteger.from("153").div(BigInteger.from("1")).toString() === "153");
console.assert(BigInteger.from("-153").div(BigInteger.from("1")).toString() === "-153");
console.assert(BigInteger.from("9844190321790980841789").div(BigInteger.from("1")).toString() === "9844190321790980841789");
console.assert(BigInteger.from("-9844190321790980841789").div(BigInteger.from("1")).toString() === "-9844190321790980841789");
console.groupEnd();
console.group("by self is 1");
console.assert(BigInteger.from("5").div(BigInteger.from("5")).toString() === "1");
console.assert(BigInteger.from("-5").div(BigInteger.from("-5")).toString() === "1");
console.assert(BigInteger.from("20194965098495006574").div(BigInteger.from("20194965098495006574")).toString() === "1");
console.assert(BigInteger.from("-20194965098495006574").div(BigInteger.from("-20194965098495006574")).toString() === "1");
console.groupEnd();
console.group("of 0 equals 0");
console.assert(BigInteger.from("0").div(BigInteger.from("1")).toString() === "0");
console.assert(BigInteger.from("-0").div(BigInteger.from("1")).toString() === "-0");
console.assert(BigInteger.from("-0").div(BigInteger.from("1234567890987654321")).toString() === "-0");
console.assert(BigInteger.from("0").div(BigInteger.from("-1234567890987654321")).toString() === "-0");
console.groupEnd();
console.group("handles signs correctly");
console.assert(BigInteger.from("10000").div(BigInteger.from("100")).toString() === "100");
console.assert(BigInteger.from("10000").div(BigInteger.from("-100")).toString() === "-100");
console.assert(BigInteger.from("-10000").div(BigInteger.from("100")).toString() === "-100");
console.assert(BigInteger.from("-10000").div(BigInteger.from("-100")).toString() === "100");
console.assert(BigInteger.from("100").div(BigInteger.from("-1000")).toString() === "-0");
console.assert(BigInteger.from("163500573666152634716420931676158").div(BigInteger.from("13579")).toString() === "12040693251797086288859336598");
console.assert(BigInteger.from("163500573666152634716420931676158").div(BigInteger.from("-13579")).toString() === "-12040693251797086288859336598");
console.assert(BigInteger.from("-163500573666152634716420931676158").div(BigInteger.from("13579")).toString() === "-12040693251797086288859336598");
console.assert(BigInteger.from("-163500573666152634716420931676158").div(BigInteger.from("-13579")).toString() === "12040693251797086288859336598");
console.assert(BigInteger.from("1234567890987654321").div(BigInteger.from("132435465768798")).toString() === "9322");
console.assert(BigInteger.from("1234567890987654321").div(BigInteger.from("-132435465768798")).toString() === "-9322");
console.assert(BigInteger.from("-1234567890987654321").div(BigInteger.from("132435465768798")).toString() === "-9322");
console.assert(BigInteger.from("-1234567890987654321").div(BigInteger.from("-132435465768798")).toString() === "9322");
console.assert(BigInteger.from("786456456335437356436").div(BigInteger.from("-5423424653")).toString() === "-145011041298");
console.assert(BigInteger.from("-93453764643534523").div(BigInteger.from("-2342")).toString() === "39903400787162");
console.assert(BigInteger.from("10000000000000000").div(BigInteger.from("-10000000000000000")).toString() === "-1");
console.assert(BigInteger.from("98789789419609840614360398703968368740365403650364036403645046").div(BigInteger.from("-1")).toString() === "-98789789419609840614360398703968368740365403650364036403645046");
console.groupEnd();
console.group("works");
console.assert(BigInteger.from("98109840984098409156481068456541684065964819841065106865710397464513210416435401645030648036034063974065004951094209420942097421970490274195049120974210974209742190274092740492097420929892490974202241981098409840984091564810684565416840659648198410651068657103974645132104164354016450306480360340639740650049510942094209420974219704902741950491209742109742097421902740927404920974209298924909742022419810984098409840915648106845654168406596481984106510686571039746451321041643540164503064803603406397406500495109420942094209742197049027419504912097421097420974219027409274049209742092989249097420224198109840984098409156481068456541684065964819841065106865710397464513210416435401645030648036034063974065004951094209420942097421970490274195049120974210974209742190274092740492097420929892490974202241981098409840984091564810684565416840659648198410651068657103974645132104164354016450306480360340639740650049510942094209420974219704902741950491209742109742097421902740927404920974209298924909742022419810984098409840915648106845654168406596481984106510686571039746451321041643540164503064803603406397406500495109420942094209742197049027419504912097421097420974219027409274049209742092989249097420224198109840984098409156481068456541684065964819841065106865710397464513210416435401645030648036034063974065004951094209420942097421970490274195049120974210974209742190274092740492097420929892490974202241981098409840984091564810684565416840659648198410651068657103974645132104164354016450306480360340639740650049510942094209420974219704902741950491209742109742097421902740927404920974209298924909742022419810984098409840915648106845654168406596481984106510686571039746451321041643540164503064803603406397406500495109420942094209742197049027419504912097421097420974219027409274049209742092989249097420224198109840984098409156481068456541684065964819841065106865710397464513210416435401645030648036034063974065004951094209420942097421970490274195049120974210974209742190274092740492097420929892490974202241").div(BigInteger.from("98109840984098409156481068456541684065964819841065106865710397464513210416435401645030648036034063974065004951094209420942097421970490274195049120974210974209742190274092740492097420929892490974202241")).toString() === "1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001");
console.assert(BigInteger.from("650891045068740450350436540352434350243346254305240433565403624570436542564034355230360437856406345450735366803660233645540323657640436735034636550432635454032364560324366403643455063652403346540263364032643454530236455402336455640363263405423565405623454062354540326564062306456432664546654436564364556406435460643646363545606345066534456065340165344065234064564").div(BigInteger.from("2634565230452364554234565062345452365450236455423654456253445652344565423655423655462534506253450462354056523445062535462534052654350426355023654540625344056203455402635454026435501635446643754664546780646476442344654465764466744566754436556406235454066354570657548036545465")).toString() === "247058238507527885509216194910087226997858456323482112332514020694766925604284002588230023");
console.assert(BigInteger.from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div(BigInteger.from("2634565230452364554234565062345452365450236455423654456253445652344565423655423655462534506253450462354056523445062535462534052654350426355023654540625344056203455402635454026435501635446643754664546780646476442344654465764466744566754436556406235454066354570657548036545465000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000")).toString() === "247058238507527885509216194910087226997858456323482112332514020694766925604284002588230023");
console.assert(BigInteger.from("9999999999999900000000000000").div(BigInteger.from("999999999999990000001")).toString() === "9999999");
console.groupEnd();
console.groupEnd();
console.groupEnd();
console.log("done");
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