标准c
#include <stdio.h>
int main(int argc, char *argv[])
{
long int x;
while(scanf("%ld",&x)!=EOF) // while(scanf("%ld",&x)==1)
{
printf("%d ",x*x);
}
return 0;
}
#include <stdio.h>
int main(int argc, char *argv[])
{
int x ,y;
while(scanf("%d%d",&x,&y)!=EOF) // while(scanf("%d%d",&x,&y)==2)
{
printf("%d ",x-y);
}
return 0;
}
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C++
#include <iostream>
using namespace std;
int main()
{
long int x;
while(cin>>x)
cout<< x*x <<endl;
return 0;
}
