Submission #826388

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
826388	2023-08-15 14:01:30	alvingogo	Thousands Islands (IOI22_islands)	C++17	24 / 100	30 ms	4820 KiB

islands

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#include "islands.h"
#include <bits/stdc++.h>
#include <variant>
#define fs first
#define sc second
using namespace std;
vector<vector<pair<int,int> > > e;
vector<int> dep,fa;
vector<int> ans;
int dfs(int r,int f){
    dep[r]=dep[f]+1;
    fa[r]=f;
    for(auto h:e[r]){
        if(dep[h.fs]==-1){
            if(dfs(h.fs,r)){
                return 1;
            }
        }
        else if(dep[h.fs]>=0){
            vector<int> bz;
            for(int i=0;i!=h.fs;){
                for(auto w:e[i]){
                    if(dep[w.fs]==dep[i]+1){
                        bz.push_back(w.sc);
                        i=w.fs;
                        break;
                    }
                }
            }
 
 
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• Subtask 1: 0 / 5
• Subtask 2: 0 / 5
• Subtask 3: 0 / 21
• Subtask 4: 24 / 24
• Subtask 5: 0 / 45