c语言 对角线数据 输入一个5×5的数组,分别求其主对角线和辅对角线...答:include <stdio.h> void main(){ int a[5][5]={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25},i,j,sum1=0,sum2=0;for (i=0;i<5;i++){ for(j=0;j<5;j++){ if(i==j)sum1=sum1+a[i][j];if(i+j==4)sum2=sum2+a[i][...