C ++程序查找矩阵的每一行和每一列的总和
在本教程中,我们将讨论一个程序,以查找给定矩阵的每一行和每一列的总和。
为此,我们将得到一个说A*B的矩阵。我们的任务是遍历矩阵的所有元素,找到矩阵的每一行和每一列的总和。
示例
#include <iostream> using namespace std; #define m 7 #define n 6 //计算每一行的总和 void calc_rsum(int arr[m][n]){ int i,j,sum = 0; for (i = 0; i < 4; ++i) { for (j = 0; j < 4; ++j) { sum = sum + arr[i][j]; } cout << "Sum of the row "<< i << ": " << sum << endl; sum = 0; } } //计算每列的总和 void calc_csum(int arr[m][n]) { int i,j,sum = 0; for (i = 0; i < 4; ++i) { for (j = 0; j < 4; ++j) { sum = sum + arr[j][i]; } cout << "Sum of the column "<< i << ": " << sum <<endl; sum = 0; } } int main() { int i,j; int arr[m][n]; int x = 1; for (i = 0; i < m; i++) for (j = 0; j < n; j++) arr[i][j] = x++; calc_rsum(arr); calc_csum(arr); return 0; }
输出结果
Sum of the row 0: 10 Sum of the row 1: 34 Sum of the row 2: 58 Sum of the row 3: 82 Sum of the column 0: 40 Sum of the column 1: 44 Sum of the column 2: 48 Sum of the column 3: 52