Submission #920659

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
920659	2024-02-02 21:11:03	Macker	Game (IOI14_game)	C++14	42 / 100	1078 ms	19028 KiB

game

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#include "game.h"
#include <bits/stdc++.h>
 
using namespace std;
typedef long long ll;
#define all(v) v.begin(), v.end()
vector<set<int>> adj;
set<int> active;
int n;
bool dfs(int a, int f){
    bool ret = 0;
    if(adj[a].size() < active.size()){
        for (auto &b : adj[a]) {
            if(active.find(b) != active.end()){
                active.erase(b);
                if(b == f) return 1;
                if(dfs(b, f)) return 1;
            }
        }
    
    }
    else{
        set<int> tmp = active;
        for (auto &b : tmp) {
            if(adj[a].find(b) != adj[a].end()){
                active.erase(b);
                if(b == f) return 1;
                if(dfs(b, f)) return 1;
 
 
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Compilation message (stderr)

game.cpp: In function 'bool dfs(int, int)':
game.cpp:13:10: warning: unused variable 'ret' [-Wunused-variable]
   13 |     bool ret = 0;
      |          ^~~

• Subtask 1: 15 / 15
• Subtask 2: 27 / 27
• Subtask 3: 0 / 58