可以连续几行数，，，分别相加求和

Sample input:
2
4 1 2 3 4
5 1 2 3 4 5

Sample output:    10

                         15

// C语言AC代码

#include <stdio.h>
int n,c,t,sum;
int main() {   

  while( scanf("%d",&c)!=EOF )
       {   

while(c--)
            {   scanf("%d",&n); sum=0;
                 while(n--)  

                  {    scanf("%d",&t);
                        sum+=t;   } 

            printf("%d\n",sum); }
       }
       return 0;
} 

// C++语言AC代码

#include <iostream>
using namespace std;
int n,c,t,sum;
int main()
{     while( cin>>c)
          {    while(c--)
                 {   cin>>n;     sum=0;
                 while(n--)
                    {    cin>>t;  sum+=t;   }
            cout<<sum<<endl; }
       }
       return 0;
} 

********************************************************************************************************************************************

Sample input:
4    1 2 3 4
5     1 2 3 4 5
0 

Sample output:    10

                         15

// C语言AC代码

#include<stdio.h>
int main()
{   

int i,n,a[100],m=0;
     while( scanf("%d",&n)!=EOF  &&  (n!=0) )
     {   

           for(i=0;i<n;i++)                      {   scanf("%d",&a[i]);       m+=a[i];   } 

             printf("%d\n",m);         m=0;
     }
     return 1;
} 

/ C++语言AC代码

#include <iostream>
using namespace std;
int n,sum,t;
int main()
{   while( cin>>n && n)
     { 

  sum=0;
         while(n--)             {       cin>>t;       sum+=t;   }
         cout<<sum<<endl;
     }
     return 0;
}

***************************************************************************************************

Sample input:
4 1 2 3 4
5 1 2 3 4 5

Sample output:
10
15

/ C++语言AC代码
#include <iostream>
using namespace std;
int n,sum,t;
int main()
{   while( cin>>n && n )
     {     sum=0;
           while(n--)
            {     cin>>t;   sum+=t;  }
            cout<<sum<<endl;
     }
     return 0;
} 

整型数据  字符串流

#include <iostream>
#include <string>
#include <sstream>
using namespace std;
int main( )
{
    string s;
    int x;
    int sum;
    while (getline(cin, s))
    {
        stringstream ss(s);
        sum=0;
        while (ss>>x) sum=sum+x;
        cout<<sum<<endl;
    }
    return 0;
}

#include <iostream>
#include <string>
#include <sstream>
using namespace std;
int main( )
{
    string s;
    int x;
    int sum;
    while (getline(cin, s))
    {
        stringstream ss(s);
        sum=0;
        while (ss>>x) sum=sum+x;
        cout<<sum<<endl;
    }
    return 0;
}

可以连续几行数，，，分别相加求和,布布扣,bubuko.com