题解 | 平方根

#include <stdio.h>

int main()
{
	int n = 0;
	//int ret = 0;
	while (scanf("%d", &n) != EOF)
	{
		/*ret = sqrt(n);
		printf("%d", ret);*/
		printf("%d", (int)sqrt(n));
		//注sqrt返回的是double类型的浮点数，需要强转成int类型
		
	}
	return 0;
}