Submission #1157460

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1157460	2025-02-25 18:59:28	zhasyn	Stations (IOI20_stations)	C++20	5 / 100	299 ms	552 KiB

stations

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#include "stations.h"
#include <bits/stdc++.h>
#define pb push_back
#define pf push_front
using namespace std;
#define F first
#define S second
typedef long long ll;
#define pii pair <int, int>
#define pll pair <ll, ll>
typedef long double ld;
const ll N = 2000 + 100, M = 4096 + 10, len = 21, inf = 1e18;
const ll mod = 1e9 + 7;
ll um(ll a, ll b){
  return (1LL * a * b) % mod;
}
ll subr(ll a, ll b){
  return ((1LL * a - b) % mod + mod) % mod;
}
int pos[N];
vector <int> q[N];
void dfs1(int v, int pred, int cnt){
  pos[v] = cnt;
  for(auto u : q[v]){
    if(u == pred) continue;
    dfs1(u, v, cnt + 1);
  }
}
void dfs2(int v, int pred, int cur){
  if(cur == -1){
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 16
• Subtask 4: 0 / 10
• Subtask 5: 0 / 61