mang2chieu sort a>z

#include<iostream>
#include<string>
using namespace std;
void main() {
	int sohang, socot;
	cout << "Nhap so hang, so cot :";
	cin >> sohang >> socot;
	int **a = new int*[sohang];
	for (int i = 0; i < sohang; i++) {
		a[i] = new int[socot];
		for (int j = 0; j < socot; j++) {
			cout << "nhap a[" << i +1<< "][" << j+1 << "]";
			cin >> a[i][j];
		}
	}
	for (int i = 0; i < sohang; i++) {
		for (int j = 0; j < socot; j++) {
			cout << "\n\t" << a[i][j];
		}
		cout << endl;
	}
	for (int i = 0; i < sohang; i++) {
		for (int j = 0; j < socot; j++)
		for(int k=0;k<socot;k++){
			if ((a[i][j] < a[i][k])){
				int tam = a[i][k];
				a[i][k] = a[i][j];
				a[i][j] = tam;
			}
		}
	}
	cout << endl << endl;
	for (int i = 0; i < sohang; i++) {
		for (int j = 0; j < socot; j++) {
			cout << "\n\t"<< a[i][j];
		}
		cout << endl;
	}
	system("pause");
}