C++编写一个程序，寻找二维数组中每一行的最大值

#include <stdio.h>

#define ROWS 3
#define COLS 4

int main(void)
{
    int arr[ROWS][COLS] = {
        {1, 2, 3, 4},
        {5, 6, 7, 8},
        {9, 10, 11, 12}
    };
    int max;

    for (int i = 0; i < ROWS; i++) {
        max = arr[i][0];
        for (int j = 1; j < COLS; j++) {
            if (arr[i][j] > max) {
                max = arr[i][j];
            }
        }
        printf("Row %d max value: %d\n", i, max);
    }

    return 0;
}

输出：

Row 0 max value: 4
Row 1 max value: 8
Row 2 max value: 12