...×5的数组,分别求其主对角线和辅对角线上元素之和答: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][...
c语言二堆数组四行五列求每一列和,详细一点答:printf("请输入第四行的5个数值,数值间以逗号分开\n");scanf("%d,%d,%d,%d,%d",&*(p+15),&*(p+16),&*(p+17),&*(p+18),&*(p+19));//计算每一列的和,并放入数组b[4]中 b[0]= a[0][0]+a[1][0]+a[2][0]+a[3][0];b[1]= a[0][1]+a[1][1]+a[2]...
用C语言编一个程序求一个二维数组各行数求和答:include <stdio.h> int main(){ int a[5][5] = {{0, 1, 2, 3, 4}, {1, 2, 3, 4, 5}, {2, 3, 4, 5, 6}, {3, 4, 5, 6, 7}, {4, 5, 6, 7, 8}};for (int i = 0; i < 5; ++i){ int sum = 0;for (int j = 0; j < 5; ++j){ sum = ...