老谢博客

 
#include <iostream>  
using namespace std;
int main(int argc, char *argv[])
{
 int i,sum=0;
 for(i=0; i<=100; i++)
 {
  if(i%10==5 || i/10==5)
   {sum = sum+i;}
 }
 cout<<"sum is "<<sum;
 return 0;
}

 
#include<stdio.h>
using namespace std;
      int main()
          {
                int i,j,s=0,sum=0,n=0;
                    scanf("%d",&n);
                         for(i=1;i<=n;i++)
                               {
                                   if(i==1||i==2||i==3)
                                        printf(" ");
                                   s++;
                                   for(j=1;j<=s;j++)
                                   {
                                          sum=sum+2;
                                          printf("%d ",sum);
                                          if(j==s)printf("\n");
                                   }          
                               }
          }

#include <iostream>
using namespace std;
int main()
{  
long int n,i,k,j,sum;
    scanf("%d",&n);
    printf("Enter n=");
       	k=n*n*n;
       	for(i=1;i<k/2;i+=2)
       	{  
        for(j=i,sum=0;sum<k; j+=2)
               sum+=j;
          	if(sum==k)
printf("%ld*%ld*%ld=%ld=form%ld to%ld\n",n,n,n,sum,i,j);
       	}
}