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- voluntas
- @ignis_fatuus
- ブン
- 清楚なC++メイドBOT
- @tzik_tack
- wraith13
- @jj1bdx
- @cpp_akira
- 安藤敏彦
- @srz_zumix
- takezoh
- まろ
- @okdshin
- @hnokx
- @ishidakei
- @take_cheeze
- TAKEI Yuya
- @mumumu
- 黒澤 亮二
- @yuushimizup
- @fukasawah
- 暢気
- @gnaggnoyil
- @mandel59
- Tommy6
- イズカワタカノブ
- @tyottyoworks
- ___shanon
- わたやん
- @KorekaraSEDB
- @kariya_mitsuru
- @ciniml
- @beam2d
- @grafi_tt
- @nekketsuuu
x
17
1
2
3
4
using std::cout;5
6
int mySqrt(int x) {7
// For x = 21473956008
cout << exp(0.5*log(x)) << " "; // It prints 463409
return exp(0.5*log(x)); // But returns 4634910
}11
12
int main(void) {13
std::cout << mySqrt(2147395600) << "\n";14
printf("%.30f\n", exp(0.5*log(2147395600)));15
return 0;16
}17
$ g++ prog.cc -Wall -Wextra
Start
46340 46339 46339.999999999978172127157449722290
0
Finish