Submission #17649

#	Time	Username	Problem	Language	Result	Execution time	Memory
17649		Namnamseo	제곱근 구하기 1 (gs13068_sqrt1)	C++14	1 / 1	0 ms	1084 KiB

sqrt1

#import<cstdio>
#import<cmath>
main(){
  long long a,l=0,r=1000010,m;
  scanf("%lld",&a);
  while(l+1!=r){
    m=(l+r)/2;
    if(m*m<=a) l=m;
    else r=m;
  }
  printf("%.6f",l+(a-l*l)*1.0/(r*r-l*l));
}

• Subtask 1: 1 / 1