Submission #1115229

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1115229	2024-11-20 09:00:28	Thunnus	Torrent (COI16_torrent)	C++17	100 / 100	536 ms	41400 KiB

torrent

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#include<bits/stdc++.h>
using namespace std;
using i64 = long long;
#define int i64
#define vi vector<int>
#define vvi vector<vi>
#define vb vector<bool>
#define pii pair<int, int>
#define fi first
#define se second
#define sz(x) (int)(x).size()
signed main(){
    ios_base::sync_with_stdio(false); cin.tie(0);
    int n, a, b, u, v;
    cin >> n >> a >> b;
    a--, b--;
    vvi adj(n);
    for(int i = 0; i < n - 1; i++){
        cin >> u >> v;
        adj[--u].emplace_back(--v);
        adj[v].emplace_back(u);
    }
    vi dp(n), par(n), dep(n);
    vector<pii> edges;
    int chosen = -1;
    auto chosen_edge = [&](int a, int b) -> bool {
        if(chosen == -1) return false;
        return ((a == edges[chosen].fi && b == edges[chosen].se) || (a == edges[chosen].se && b == edges[chosen].fi));
 
 
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Compilation message (stderr)

torrent.cpp: In function 'int main()':
torrent.cpp:77:7: warning: variable 'print_vec' set but not used [-Wunused-but-set-variable]
   77 |  auto print_vec = [&](const vi &vec) -> void {
      |       ^~~~~~~~~

• Subtask 1: 31 / 31
• Subtask 2: 69 / 69