DoubleArr2_14.cpp

#include "pch.h"
#include <stdio.h>
#include <conio.h>


int** createArr(int n, int m) {
	int i, j;
	int** arr = new int*[n];
	for (i = 0; i < n; i++) {
		arr[i] = new int[m];
	}
	for (i = 0; i < n; i++) {
		for (j = 0; j < m; j++) {
			printf("Enter arr[%i][%i] = ", i + 1, j + 1);
			scanf_s("%i", *(arr + i) + j);
		}
	}

	return(arr);
}

void printArr(int** arr, int n, int m) {
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m; j++) {
			printf("arr[%i][%i] = ", i+1, j+1, arr[i][j]);
		}
		printf("\n");
	}
}

void deleteArr(int** arr, int n) {
	for (int i = 0; i < n; i++) {
		delete[] arr[i];
	}
	delete[] arr;
}

int main() {	
	int i, j;
	int n, m;
	printf("Enter n and m\n");
	scanf_s("%i%i", &n, &m);
	int** arr = createArr(n, m);
	printf("Before...\n");
	printArr(arr, n, m);

	int tmp;
	int mi;
	for (j = 0; j < m; j++) {
		mi = 0;
		for (i = 0; i < n; i++) {
			if (arr[mi][j] < arr[i][j]) {
				mi = i;
			}
		}
		tmp = arr[0][j];
		arr[0][j] = arr[mi][j];
		arr[mi][j] = tmp;
	}

	printf("After...\n");
	printArr(arr, n, m);
	
	deleteArr(arr, n);
	_getch();
	return 0;
}