Untitled

#include <iostream>
using namespace std;

int n;
int arr[101][101];
int dd[101];
int stk[101];
int stk_size;
int truoc[101];

void push(int num) {
	stk_size++;
	stk[stk_size] = num;
}

int top() {
	return stk[stk_size];
}

void pop() {
	stk_size--;
}

bool empty() {
	if (stk_size == -1)
		return true;
	return false;
}

void DFS(int i) {
	dd[i] = 1;
	for (int j = 0; j < n; j++) {
		if (arr[i][j] != 0) {
			if (dd[j] == 1) {
				//push(j);
				truoc[j] = i;
				return;
			}
			else if (dd[j] == 0) {
				dd[j] = 1;
				truoc[j] = i;
				push(j);
				DFS(j);
			}
		}
	}
}

int main() {
	int t;
	cin >> t;
	for (int tc = 1; tc <= t; tc++) {
		int x, y, z, p;
		cin >> n;
		for (int i = 0; i < n; i++) {
			for (int j = 0; j < n; j++) {
				arr[i][j] = 0;
			}
		}

		for (int i = 0; i < n; i++) {
			cin >> x >> y >> z;
			for (int j = 0; j < z; j++) {
				cin >> p;
				arr[x][p] += y;
				arr[p][x] += y;
			}
		}

		for (int i = 0; i < n; i++) {
			for (int j = 0; j < n; j++) {
				cout << arr[i][j] << " ";
			}
			cout << endl;
		}

		for (int i = 0; i < n; i++) {
			cout << i << ": ";
			stk_size = -1;
			for (int j = 0; j < n; j++) {
				dd[j] = 0;
				truoc[j] = -1;
			}
			push(i);
			DFS(i);

			
			for (int i = 0; i <= stk_size; i++) {
				cout << stk[i] << " ";
			}
			cout << endl;

			for (int i = 0; i < n; i++) {
				if(truoc[i] != -1)
					cout << truoc[i] << " -> " << i <<  endl;
			}
			cout << endl << endl;
		}

		
		/*cout << endl;
		for (int i = 0; i < n; i++) {
			cout << truoc[i] << " ";
		}*/
	}
}