void Nhap(MATRAN &a) {
	cout << "\nNhap so dong: ";
	cin >> a.n;
	cout << "\nNhap so cot: ";
	cin >> a.m;
	for (int i = 0; i<a.n; i++)
		for (int j = 0; j<a.m; j++) {
			cout << "a[" << i << "][" << j << "]=";
			cin >> a.list[i][j];
		}
}

void Xuat(MATRAN a) {
	for (int i = 0; i<a.n; i++)  {
		cout << endl;
		for (int j = 0; j<a.m; j++)
			cout << a.list[i][j] << "  ";
	}
}

int Tong(MATRAN a) {

	int s = 0;

	for (int i = 0; i<a.n; i++)
		for (int j = 0; j<a.m; j++)
			s += a.list[i][j];
	return s;
}

//Lab4_2
int MinDuong(MATRAN a) {
	int min = 0, flag = 0;
	for (int i = 0; i<a.n; i++)
		for (int j = 0; j<a.m; j++)
			if (a.list[i][j]>0)
				if (!flag) {
					min = a.list[i][j];
					flag = 1;
				}
				else if (a.list[i][j]<min)
					min = a.list[i][j];
	return min;
}

//Lab4_3
int HamA(MATRAN a, int k) {
	int kq = 0, flag = 0;
	for (int i = 0; i<a.n; i++)
		if (a.list[i][k]>0)
			if (!flag) {
				kq = a.list[i][k];
				flag = 1;
			}
			else
				if (a.list[i][k]<kq)
					kq = a.list[i][k];
	return kq;
}

//Sinh vien viet code cho cac ham sau
/*--------------Phan B: Chinh sua so lieu----------------*/
//chinh sua so lieu: Sua ham MinDuong de tim gia tri le nho nhat
int MinDuong1(MATRAN a) {
	int min = 0, flag = 0;
	for (int i = 0; i<a.n; i++)
		for (int j = 0; j<a.m; j++)
			if (a.list[i][j]>0)
				if (!flag) {
					min = a.list[i][j];
					flag = 1;
				}
				else
					if (a.list[i][j]<min)
						min = a.list[i][j];
	return min;
}