Submission #803077

#	Time	Username	Problem	Language	Result	Execution time	Memory
803077		HaroldVemeno	Stations (IOI20_stations)	C++17	0 / 100	3027 ms	2097152 KiB

stations

#include "stations.h"
#include <bits/stdc++.h>

#ifdef GUDEB
    #define D(x) cerr << #x << ": " << (x) << '\n';
    #define ifdeb if(true)
#else
    #define D(x) ;
    #define ifdeb if(false)
#endif

#define all(x) begin(x), end(x)

using namespace std;
using ull = unsigned long long;
using ll = long long;
// #define int ll;

vector<vector<int>> al;
vector<int> labels;
int lt = 0;

void dfs(int v, int p) {
    for(auto a : al[v]) {
        if(a == p) continue;
        dfs(a, v);
    }
    labels[v] = lt++;
}

vector<int> label(int n, int k, vector<int> u, vector<int> v) {
    al.resize(n);
	for (int i = 0; i < u.size(); i++) {
        al[u[i]].push_back(v[i]);
        al[v[i]].push_back(u[i]);
	}
    labels.resize(n);
    dfs(0, 0);
	return labels;
}

int find_next_station(int s, int t, vector<int> c) {
    int mx = c[0];
    int lub = 10000;
    for(int a : c) {
        if(a >= t) lub = min(lub, a);
        mx = max(mx, a);
    }
    if(lub == 10000) return mx;
    return lub;
}

Compilation message (stderr)

stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:33:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |  for (int i = 0; i < u.size(); i++) {
      |                  ~~^~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 16
• Subtask 4: 0 / 10
• Subtask 5: 0 / 61