Submission #4783

#TimeUsernameProblemLanguageResultExecution timeMemory
4783gs13068제곱근 구하기 1 (gs13068_sqrt1)C++98
1 / 1
0 ms1088 KiB
#include<cstdio>

int main()
{
	long long i,n;
	scanf("%lld",&n);
	for(i=1;i*i<=n;i++);
	printf("%lld.%06lld",i-1,((n-(i-1)*(i-1))*1000000+(i*i-(i-1)*(i-1))/2)/(i*i-(i-1)*(i-1)));
}
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