/C05025 - Sắp xếp ma trận

<Problem>

https://code.ptit.edu.vn/student/question/C05025
#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)
#define swap(i, j) (i = i + j, j = i - j, i = i - j)

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

	for (int test = 1; test <= t; test++) {
		int n, m;
		scanf("%d %d", &n, &m);

		int arr[100][100];

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

		for (int i1 = 0; i1 < n; i1++) {
			for (int j1 = 0; j1 < m; j1++) {
				for (int i2 = i1; i2 < n; i2++) {
					for (int j2 = j1; j2 < m; j2++) {
						if (arr[i1][j1] > arr[i2][j2]) {
							swap(arr[i1][j1], arr[i2][j2]);
						}
					}
				}
			}
		}

		printf("Test %d:\n", test);

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

	return 0;
}