Submission #1091083

#TimeUsernameProblemLanguageResultExecution timeMemory
1091083NeltStations (IOI20_stations)C++17
0 / 100
609 ms688 KiB
#include "stations.h" #include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> #define ll long long #define endl "\n" using namespace std; using namespace __gnu_pbds; mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count()); template <typename T, typename key = less<T>> using ordered_set = tree<T, null_type, key, rb_tree_tag, tree_order_statistics_node_update>; const ll N = 1005; vector<ll> g[N]; vector<int> d; ll timer = 0; void dfs(ll v, ll par = 0) { d[v] = timer++; for (ll to : g[v]) if (to != par) dfs(to, v); } std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) { timer = 0; d.assign(n, 0); for (ll i = 0; i < n; i++) g[i].clear(); for (ll i = 0; i < n - 1; i++) g[u[i]].push_back(v[i]), g[v[i]].push_back(u[i]); dfs(0); return d; } int find_next_station(int s, int t, std::vector<int> c) { for (ll i = 1; i < c.size(); i++) if (c[i] > t) return c[i - 1]; return c[0]; }

Compilation message (stderr)

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:34:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |  for (ll i = 1; i < c.size(); i++)
      |                 ~~^~~~~~~~~~
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