oj.uz

Submission #424215

# Submission time Handle Problem Language Result Execution time Memory
424215 2021-06-11T18:08:44 Z cfalas Toy Train (IOI17_train) C++14
0 / 100
 2000 ms 262148 KB 
#include "train.h"
#include<bits/stdc++.h>
using namespace std;
#define mp make_pair
#define INF 10000000
#define MOD 1000000007
#define MID ((l+r)/2)
#define HASHMOD 2305843009213693951
#define ll long long
#define ull unsigned long long
#define F first
#define S second
typedef pair<ll, ll> ii;
typedef pair<ii, int> iii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef map<int, int> mii;

#define EPS 1e-6
#define FOR(i,n) for(int i=0;i<((int)(n));i++)
#define FORi(i,a,b) for(int i=((int)(a));i<((int)(b));i++)
#define FOA(v, a) for(auto &v : a)
#define len(x) ((int)x.size())

vector<vi> adj;
vector<vi> rev;
vi vis;

vector<int> path;
vector<vi> loops;
set<int> spath;
vi r;

void dfs(int s){
	path.push_back(s);
	spath.insert(s);
	vis[s] = 1;
	for(auto v : adj[s]){
		if(!vis[v]) dfs(v);
		else if(spath.count(v)){
			bool start = false;
			vi ap;
			bool win = false;
			FOA(x,path){
				if(v==x) start = true;
				if(start) ap.push_back(x);
				if(start && r[x]) win = true;
			}
			if(win) loops.push_back(ap);
		}
	}
	spath.erase(s);
	path.erase(path.end()-1);
}

vi who_wins(vi a, vi rr, vi u, vi v) {
	r = rr;
	int n = len(a);
	adj.assign(n, vi());
	rev.assign(n, vi());
	vis.assign(n,0);
	vi res(n, 0);

	FOR(i, len(u)){
		adj[u[i]].push_back(v[i]);
		rev[v[i]].push_back(u[i]);
	}
	FOR(i,n){
		vis.assign(n,0);
		dfs(i);
		assert(path.size()==0);
	}

	FOA(loop, loops){
		queue<int> q;
		vi used(n, 0);
		FOA(v,loop) q.push(v), used[v] = true;
		while(!q.empty()){
			int t = q.front();
			q.pop();
			res[t] = 1;
			FOA(v,rev[t]){
				if(!used[v]){
					used[v] = true;
					q.push(v);
				}
			}
		}
	}

	return res;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2074 ms 22728 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB 3rd lines differ - on the 8th token, expected: '0', found: '1'
2 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2081 ms 2164 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 11.0

# Verdict Execution time Memory Grader output
1 Runtime error 656 ms 262148 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2075 ms 26484 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 51.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2074 ms 22728 KB Time limit exceeded
2 Halted 0 ms 0 KB -