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##3乘3的整数矩阵对角线元素之和
#include<stdio.h> int main() { int a[3][3],i,j,sum=0; printf("输入矩阵:\n"); for(i=0;i<3;i++) { for(j=0;j<3;j++) { scanf("%d",&a[i][j]); } } for(i=0;i<3;i++) { for(j=0;j<3;j++) { if(i==j||i+j==2) { sum=sum+a[i][j]; } } } printf("sum=%d\n",sum); return 0; }
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##3乘3的整数矩阵对角线元素之和
The text was updated successfully, but these errors were encountered: