题解 | #求解立方根#
求解立方根
https://www.nowcoder.com/practice/caf35ae421194a1090c22fe223357dca
#include <cstdio>
#include <iostream>
using namespace std;
int main() {
double s;
cin>>s;
double l = -20,r = 20;
while(r-l>1e-8){
double mid = (l+r)/2;
if(mid*mid*mid>=s) r = mid;
else l = mid;
}
printf("%.1lf",l);
}
// 64 位输出请用 printf("%lld")
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