代码如下

#include <stdio.h>int main()
{int a[7][2],i,j,sum1=0,sum2=0;float average1=0,average2=0;for(i=0;i<7;i++){scanf("%d%d",&a[i][0],&a[i][1]);printf("\n");//实现换行输入数据}for(i=0;i<7;i++)sum1+=a[i][0];for(i=0;i<7;i++)sum2+=a[i][1];average1=sum1/7;average2=sum2/7;printf("%0.2f\n",average1);printf("%0.2f\n",average2);return 0;
}

结果

问题