题解 | 平方根

#include <stdio.h>

int main() {
    int num,square;
    scanf("%d",&square);
    for(int num = 1;num <= square;num++)
    {
        if((num * num) > square)
        {printf("%d",num - 1);
        break;
        }
        else if((num * num) == square)
        {printf("%d",num);
        break;
        }
    }
    return 0;
}