remove

#include <iostream>
#include <vector>
#include <cmath>
#include <limits.h>

using namespace std;

void inputArray(int ***a, int n, int m) {
    int **b = new int*[2 * n];

	for (int i = 0; i < n; i++) {
	    b[i] = new int[m];
		for(int j = 0; j < m; j++) {
		    cin >> b[i][j];
		}
	}
	*a = b;
}

void print(int **a, int n, int m) {
	for (int i = 0; i < n; i++) {
		for(int j = 0; j < m; j++)
		    cout << a[i][j] << " ";
		cout << endl;
	}
}

void remove(int **a, int &n, int m, int x) {
	for (int i = 0; i < n; i++) {
	    for(int j = 0; j < m; j++) {
	        if (a[i][j] == x) {
    			for (int k = i; k < n - 1; k++) {
    				a[k] = a[k + 1];
    			}
    			i--;
    			n--;
    			break;
	        }
		};
	}
}

int main() {

	int n, m, x;
	cin >> n >> m >> x;

	int **a;

	inputArray(&a, n, m);

	remove(a, n, m, x);

	print(a, n, m);

	for(int i = 0; i < n; i++) {
	    delete []a[i];
	}
	delete[] a;
	cout << endl;
	return 0;
}