emmmmm.上道题用到了
#include<stdio.h>
#include<math.h>
int main()
{
int a;
scanf("%d",&a);
float c;
int b;
c = sqrt(a);
b = floor(c);
printf("%d",b);;
}
#include<math.h>
int main()
{
int a;
scanf("%d",&a);
float c;
int b;
c = sqrt(a);
b = floor(c);
printf("%d",b);;
}
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