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Submission #428418

# Submission time Handle Problem Language Result Execution time Memory
428418 2021-06-15T11:36:14 Z egekabas Stations (IOI20_stations) C++14
0 / 100
 4 ms 432 KB 
#include "stations.h"
#include <bits/stdc++.h>
#define all(x) (x).begin(), (x).end()
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<ll, ll> pll;
typedef pair<ull, ull> pull;
typedef pair<int, int> pii;
typedef pair<ld, ld> pld;
vector<int> g[1009];
vector<int> ans;
int curt = 0;
void dfs(int v, int prt, int depth){
	int tl = curt;
	++curt;
	for(auto u : g[v])
		if(u != prt)
			dfs(u, v, depth+1);
	int tr = curt-1;
	if(depth%2)
		ans[v] = tl;
	else
		ans[v] = tr;
}
std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
	ans = vector<int>(n);
	for(int i = 0; i < n; ++i)
		g[i].clear();
	for(int i = 0; i < n-1; ++i){
		g[u[i]].pb(v[i]);
		g[v[i]].pb(u[i]);
	}
	curt = 0;
	dfs(0, -1, 0);
	return ans;
}

int find_next_station(int s, int t, std::vector<int> c) {
	int smaller = 0;
	for(auto u : c)
		if(u < s)
			smaller = 1;
	if(smaller == 0){
		sort(all(c));
		for(auto u : c)
			if(t <= u)
				return u;
	}
	else{
		sort(all(c), greater<int>());
		for(auto u : c)
			if(t >= u)
				return u;
	}
}

Compilation message

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:61:1: warning: control reaches end of non-void function [-Wreturn-type]
   61 | }
      | ^

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 432 KB Invalid labels (duplicates values). scenario=0, label=9
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 308 KB Invalid labels (duplicates values). scenario=0, label=995
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 428 KB Invalid labels (duplicates values). scenario=0, label=1
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 200 KB Invalid labels (duplicates values). scenario=0, label=1
2 Halted 0 ms 0 KB -

Subtask #5
0 / 61.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 328 KB Invalid labels (duplicates values). scenario=0, label=2
2 Halted 0 ms 0 KB -