Submission #1173393

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1173393	2025-03-25 07:51:06	duonggsimp	Railway (BOI17_railway)	C++20	100 / 100	129 ms	48836 KiB

railway

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> ii;
typedef pair<ll, ii> iii;
#define pb push_back
#define fi first
#define se second
#define endl '\n'
#define MOD 1000000000
#define MASK(i) (1ll << (i))
#define BIT(x, i) (((x) >> (i)) & 1)
ll n,m,k;
ll cnt;
ll c[100005];
ll h[100005];
ll f[100005];
ll tin[100005];
ll par[100005][20];
vector <ll> a[100005];
vector <ll> res;
map <ii,ll> mp;
void dfs(ll x,ll p){
  tin[x] = ++cnt;
  for (ll i : a[x]){
    if (i == p) continue;
    h[i] = h[x] + 1;
 
 
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• Subtask 1: 8 / 8
• Subtask 2: 15 / 15
• Subtask 3: 7 / 7
• Subtask 4: 29 / 29
• Subtask 5: 16 / 16
• Subtask 6: 25 / 25