2_Lab06_3.c

// Baekjoon Online Judge # 1236
#include <stdio.h>

int main() {
    int n, m; // ¼¼·Î n, °¡·Î m
    int row_count = 0, col_count = 0;
    int row[101] = { 0, }, col[101] = { 0, };
    char arr[101][101] = { '\0', };

    scanf("%d %d", &n, &m);

    for (int i = 0; i < n; i++) {
        scanf("%s", arr[i]);
    }

    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            if (arr[i][j] == 'X') {
                row[i]++;
                col[j]++;
            }
        }
    }

    for (int i = 0; i < n; i++) {
        if (!row[i])
            row_count++;
    }

    for (int i = 0; i < m; i++) {
        if (!col[i])
            col_count++;
    }

    if (row_count > col_count)
        printf("%d", row_count);
    else
        printf("%d", col_count);

    return 0;
}