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Submission #430317

# Submission time Handle Problem Language Result Execution time Memory
430317 2021-06-16T12:54:04 Z Keshi Stations (IOI20_stations) C++17
0 / 100
 3000 ms 2097156 KB 
//In the name of God
#include<bits/stdc++.h>
#include "stations.h"
using namespace std;

typedef int ll;
typedef pair<ll, ll> pll;

const ll maxn = 2e5 + 100;
const ll mod = 1e9 + 7;
const ll inf = 1e9;

#define Mp make_pair
#define F first
#define S second
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define Sz(x) ll((x).size())

ll t, st[maxn], ft[maxn], h[maxn];
vector<ll> g[maxn];

void dfs(ll v, ll p){
	st[v] = t++;
	for(ll u : g[v]){
		if(u != p){
			h[u] = h[v] + 1;
			dfs(u, v);
		}
	}
	ft[v] = t++;
}

vector<int> label(int n, int k, vector<int> u, vector<int> v) {
	vector<int> labels(n);
	for(ll i = 0; i < n - 1; i++){
		g[u[i]].pb(v[i]);
		g[v[i]].pb(u[i]);
	}
	dfs(0, 0);
	for (int i = 0; i < n; i++) {
		if(h[i] & 1) labels[i] = ft[i];
		else labels[i] = st[i];
	}
	return labels;
}

int find_next_station(int s, int t, vector<int> c){
	if(Sz(c) == 1) return c[0];
	sort(all(c));
	if(s < c[0]){
		ll ls = s + 1;
		for(ll i = 0; i < Sz(c) - 1; i++){
			if(ls <= t && t <= c[i]) return c[i];
			ls = c[i] + 1;
		}
		return c.back();
	}
	ll ls = s - 1;
	for(ll i = Sz(c) - 1; i > 0; i--){
		if(c[i] <= t && t <= ls) return c[i];
		ls = c[i] - 1;
	}
	return c[0];
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 1439 ms 2097156 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3071 ms 5108 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 1477 ms 2097156 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1244 ms 9920 KB Output is correct
2 Runtime error 1204 ms 2097156 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #5
0 / 61.0

# Verdict Execution time Memory Grader output
1 Runtime error 2455 ms 2097156 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -