Anower77

#include <bits/stdc++.h>
using namespace std;

const int MAX_N = 20; // Maximum dimensions for the 3D grid
char a[MAX_N][MAX_N][MAX_N]; // 3D grid matrix
bool vis[MAX_N][MAX_N][MAX_N]; // 3D visited matrix

int n, m, p; // Dimensions of the 3D grid
vector<tuple<int, int, int>> d = {{0,1,0},{0,-1,0},{-1,0,0},{1,0,0},{0,0,1},{0,0,-1}}; // 3D directions

Anower77

#include<bits/stdc++.h>
using namespace std;

int main() {
   int t;cin>>t;
   while (t--)
   {
        int n,sum=0;cin>>n;
        vector<int>v(n-1);
        for(int i=0;i<n-1;i++)