Submission #857548

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
857548	2023-10-06 11:39:13	iskhakkutbilim	The Xana coup (BOI21_xanadu)	C++17	100 / 100	86 ms	47968 KiB

xanadu

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#include <bits/stdc++.h>
using namespace std;
 
#define int long long
#define ff first
#define ss second
#define all(a) a.begin(), a.end()
const int N = 2e5;
const int MOD = 1e9 + 7;
const int INF = 1e9 + 7;
int n;
int a[N + 1];
vector<int> g[N+1];
 
 
vector<vector<int>> dfs(int v, int par){
  if(g[v].size() == 1 and v != par){
    vector< vector<int> > res(2, vector<int>(2));
    res[a[v]][1] = res[!a[v]][0] = MOD;
    res[a[v]][0] = 0, res[!a[v]][1] = 1;
    return res;
  }
  vector< vector<int> > sub(2, vector<int>(2, 0));
        sub[0][1] = INF;
        sub[1][1] = INF; 
        for(int to : g[v]){
          if(to == par) continue;
          auto child = dfs(to, v);
          vector< vector<int> > new_sub(2, vector<int>(2));
          for(int i = 0;i < 2; i++){
 
 
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Compilation message (stderr)

xanadu.cpp:44:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   44 | main(){
      | ^~~~

• Subtask 1: 5 / 5
• Subtask 2: 15 / 15
• Subtask 3: 10 / 10
• Subtask 4: 40 / 40
• Subtask 5: 30 / 30