Submission #574613

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
574613	2022-06-08T23:14:54 Z	definitelynotmee	Toy Train (IOI17_train)	C++	11 / 100	508 ms	1692 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);
            if(reach[i]){
                for(int j = 0; j < n; j++)
                    resp[j]|=reachedby[j];
            }
        }       
        
    } else if(owned == 0){
        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] && !r[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);
            if(reach[i]){
                for(int j = 0; j < n; j++)
                    resp[j]|=reachedby[j];
            }
        } 
        for(int& i : resp)
            i^=1;
    }
	return resp;
}

Subtask #1
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	4 ms	1108 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
11.0 / 11.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	46 ms	1692 KB	Output is correct
2	Correct	88 ms	1676 KB	Output is correct
3	Correct	132 ms	1660 KB	Output is correct
4	Correct	508 ms	1588 KB	Output is correct
5	Correct	95 ms	1556 KB	Output is correct
6	Correct	102 ms	1492 KB	Output is correct
7	Correct	499 ms	1512 KB	Output is correct
8	Correct	7 ms	1492 KB	Output is correct
9	Correct	7 ms	1492 KB	Output is correct
10	Correct	10 ms	1504 KB	Output is correct
11	Correct	10 ms	1356 KB	Output is correct
12	Correct	7 ms	1364 KB	Output is correct
13	Correct	8 ms	1584 KB	Output is correct
14	Correct	8 ms	1620 KB	Output is correct
15	Correct	8 ms	1620 KB	Output is correct
16	Correct	8 ms	1532 KB	Output is correct
17	Correct	8 ms	1472 KB	Output is correct
18	Correct	306 ms	1332 KB	Output is correct