Submission #4789

#	Time	Username	Problem	Language	Result	Execution time	Memory
4789		Qwaz	제곱근 구하기 1 (gs13068_sqrt1)	C++98	1 / 1	0 ms	1088 KiB

sqrt1

#include <cstdio>

typedef long long ll;

ll n;

void solve(){
	ll i;
	for(i=0; i*i<n; i++);
	i--;

	printf("%lf\n", i+(double)(n-i*i)/(2*i+1));
}

int main(){
	scanf("%lld", &n);

	solve();

	return 0;
}

• Subtask 1: 1 / 1