Submission #574594

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
574594	2022-06-08T22:17:19 Z	definitelynotmee	Toy Train (IOI17_train)	C++	0 / 100	511 ms	1760 KB

train

#include<bits/stdc++.h>
#include"train.h"
#define ff first
#define ss second
#define all(x) x.begin(), x.end()
using namespace std;
using ll = long long;
using pii = pair<int,int>;
using pll = pair<ll,ll>;
template<typename T>
using matrix = vector<vector<T>>;

std::vector<int> who_wins(std::vector<int> a, std::vector<int> r, std::vector<int> u, std::vector<int> v) {
	int owned = accumulate(all(a),0);
    int n = a.size(), m = u.size();
    vector<int> resp(n);
    matrix<int> g(n), rev(n);
    for(int i = 0; i < m; i++){
        g[u[i]].push_back(v[i]);
        rev[v[i]].push_back(u[i]);
    }
    if(owned == n){
        for(int i = 0; i < n; i++){
            if(!r[i])
                continue;
            vector<int> reach(n), reachedby(n);
            auto dfs =[&](int id, auto dfs)->void{
                reach[id] = 1;
                for(int i : g[id])
                    if(!reach[i]) dfs(i,dfs);
            };
            auto rdfs =[&](int id, auto dfs)->void{
                reachedby[id] = 1;
                for(int i : rev[id])
                    if(!reachedby[i]) dfs(i,dfs);
            };
            for(int j : g[i])
                dfs(j,dfs);
            for(int j : rev[i])
                rdfs(j,rdfs);
            for(int j = 0; j < n; j++){
                resp[j]|=reach[j]&&reachedby[j];
            }
        }       
        
    } else {
        
    }
	return resp;
}

Subtask #1
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	4 ms	980 KB	3rd lines differ - on the 14th token, expected: '1', found: '0'
2	Halted	0 ms	0 KB	-

Subtask #2
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	0 ms	212 KB	3rd lines differ - on the 2nd token, expected: '1', found: '0'
2	Halted	0 ms	0 KB	-

Subtask #3
0 / 11.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	55 ms	1556 KB	Output is correct
2	Correct	106 ms	1760 KB	Output is correct
3	Correct	155 ms	1756 KB	Output is correct
4	Incorrect	511 ms	1664 KB	3rd lines differ - on the 13th token, expected: '1', found: '0'
5	Halted	0 ms	0 KB	-