/CTest019 - Sắp xếp cột trong ma trận

<Problem>

https://code.ptit.edu.vn/student/question/CTest019
#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <string.h>
#include <stdbool.h>
#include <math.h>


#define max(i, j) ((i > j) ? i : j)
#define min(i, j) ((i < j) ? i : j)



int main() {

	int t;
	scanf("%d", &t);

	while (t--) {
		int n, m, index;
		scanf("%d %d %d", &n, &m, &index);

		int arr[101][101];

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

		index--;

		for (int i = 0; i < n - 1; i++) {
			for (int j = n - 1; j > i; j--) {
				if (arr[j][index] < arr[j - 1][index]) {
					int t = arr[j][index];
					arr[j][index] = arr[j - 1][index];
					arr[j - 1][index] = t;
				}
			}
		}

		for (int i = 0; i < n; i++) {
			for (int j = 0; j < m; j++) {
				printf("%d ", arr[i][j]);
			}
			printf("\n");
		}

	}



	return 0;
}