#include <bits/stdc++.h>
#define int long long
#define fastio ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
using namespace std;
const int N = 1e5+5;
vector<int> adj[N];
vector<array<int,3>> adj2[105][105][2]; //0->blue, 1->red
int visited[105][105][2], deg[105][105][2], losing[105][105][2], winning[105][105][2];
void dfs(int n, int m, int p){
//cout << n << " " << m << " " << p << " " << winning[n][m][p] << " " << losing[n][m][p] << "\n";
visited[n][m][p] = 1;
for(auto [nn,mm,pp] : adj2[n][m][p]){
//cout << n << " " << m << " " << p << " to " << nn << " " << mm << " " << pp << " " << deg[nn][mm][pp]<< '\n';
if(!visited[nn][mm][pp]){
if(losing[n][m][p])
winning[nn][mm][pp] = 1;
else if(--deg[nn][mm][pp]==0)
losing[nn][mm][pp] = 1;
else continue;
dfs(nn,mm,pp);
}
}
}
signed main(){
fastio
int n;
cin >> n;
if(n <= 100){
int a,b;
cin >> a >> b;
for(int i = 1;i < n;i++){
int u,v;
string s;
cin >> u >> v >> s;
adj[u].push_back(v);
adj[v].push_back(u);
if(s=="magenta"){
for(int j = 1;j <= 100;j++){
if(j==u||j==v) continue;
adj2[u][j][1].push_back({v,j,0}), deg[u][j][1]++;
adj2[v][j][1].push_back({u,j,0}), deg[v][j][1]++;
}
for(int j = 1;j <= 100;j++){
if(j==u||j==v) continue;
adj2[j][v][0].push_back({j,u,1}), deg[j][v][0]++;
adj2[j][u][0].push_back({j,v,1}), deg[j][u][0]++;
}
}else if(s=="plava"){ //blue
for(int j = 1;j <= 100;j++){
if(j==u||j==v) continue;
adj2[u][j][1].push_back({v,j,0}), deg[u][j][1]++;
adj2[v][j][1].push_back({u,j,0}), deg[v][j][1]++;
}
}else if(s=="crvena"){
for(int j = 1;j <= 100;j++){
if(j==u||j==v) continue;
adj2[j][v][0].push_back({j,u,1}), deg[j][v][0]++;
adj2[j][u][0].push_back({j,v,1}), deg[j][u][0]++;
}
}
}
for(int i = 1;i <= n;i++){
for(int j = 1;j <= n;j++){
if(i!=j&&adj[i].size()==1&&adj[i][0]==j){
losing[i][j][0] = 1;
losing[j][i][1] = 1;
}
}
}
for(int i = 1;i <= n;i++){
for(int j = 1;j <= n;j++){
for(int k = 0;k < 2;k++){
if((winning[i][j][k]||losing[i][j][k])&&(!visited[i][j][k])){
dfs(i,j,k);
}
}
}
}
cout << (winning[a][b][0] ? "Paula\n" : losing[a][b][0] ? "Marin\n" : "Magenta\n");
}
}
Compilation message
Main.cpp: In function 'void dfs(long long int, long long int, long long int)':
Main.cpp:16:11: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
16 | for(auto [nn,mm,pp] : adj2[n][m][p]){
| ^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
3436 KB |
Output is correct |
| 2 |
Correct |
3 ms |
3436 KB |
Output is correct |
| 3 |
Correct |
3 ms |
3436 KB |
Output is correct |
| 4 |
Incorrect |
3 ms |
3456 KB |
Output isn't correct |
| 5 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
3180 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
3436 KB |
Output is correct |
| 2 |
Correct |
3 ms |
3436 KB |
Output is correct |
| 3 |
Correct |
3 ms |
3436 KB |
Output is correct |
| 4 |
Incorrect |
3 ms |
3456 KB |
Output isn't correct |
| 5 |
Halted |
0 ms |
0 KB |
- |
