使用 C 程序计算矩阵行总和和列总和
问题
我们来编写一个 C 程序,使用运行时编译计算一个 5 x 5 数组的行总和和列总和。
解决方案
在这个程序中,我们通过 for 循环在运行时在控制台上输入大小为 5X5 矩阵的数组值,并尝试添加行和列。
进行行总和的逻辑如下 −
for(i=0;i<5;i++) {//I is for row for(j=0;j<5;j++){ //j is for column row=row+A[i][j]; //compute row sum }
进行列总和的逻辑如下 −
for(j=0;j<5;j++){ // j is for column for(i=0;i<5;i++){ //I is for row column=column+A[i][j]; }
示例
#include<stdio.h> void main(){ //Declaring array and variables// int A[5][5],i,j,row=0,column=0; //Reading elements into the array// printf("Enter elements into the array :
"); for(i=0;i<5;i++){ for(j=0;j<5;j++){ printf("A[%d][%d] : ",i,j); scanf("%d",&A[i][j]); } } //Computing sum of elements in all rows// for(i=0;i<5;i++){ for(j=0;j<5;j++){ row=row+A[i][j]; } printf("The sum of elements in row number %d is : %d
",i,row); row=0; } //Computing sum of elements in all columns// for(j=0;j<5;j++){ for(i=0;i<5;i++){ column=column+A[i][j]; } printf("The sum of elements in column number %d is : %d
",i,column); column=0; } }
输出
Enter elements into the array : A[0][0] : A[0][1] : A[0][2] : A[0][3] : A[0][4] : A[1][0] : A[1][1] : A[1][2] : A[1][3] : A[1][4] : A[2][0] : A[2][1] : A[2][2] : A[2][3] : A[2][4] : A[3][0] : A[3][1] : A[3][2] : A[3][3] : A[3][4] : A[4][0] : A[4][1] : A[4][2] : A[4][3] : A[4][4] : The sum of elements in row number 0 is : 0 The sum of elements in row number 1 is : 9 The sum of elements in row number 2 is : -573181070 The sum of elements in row number 3 is : 4196174 The sum of elements in row number 4 is : -417154028 The sum of elements in column number 5 is : -994596681 The sum of elements in column number 5 is : 65486 The sum of elements in column number 5 is : 1 The sum of elements in column number 5 is : 4196182 The sum of elements in column number 5 is : 4196097
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