二维数组中所有元素的总和。在C中

#include <stdio.h>

int sumOfArray(int arr[][3], int rows, int cols) {
    int sum = 0;
    for (int i = 0; i < rows; i++) {
        for (int j = 0; j < cols; j++) {
            sum += arr[i][j];
        }
    }
    return sum;
}

int main() {
    int arr[2][3] = {{1, 2, 3}, {4, 5, 6}};
    int rows = sizeof(arr) / sizeof(arr[0]);
    int cols = sizeof(arr[0]) / sizeof(arr[0][0]);
    
    int result = sumOfArray(arr, rows, cols);
    printf("The sum of all elements in the 2D array is: %d\n", result);
    
    return 0;
}