제출 #1154510

#제출 시각아이디문제언어결과실행 시간메모리
1154510Math4Life2020Island Hopping (JOI24_island)C++20
0 / 100
1 ms412 KiB
#include "island.h" #include <bits/stdc++.h> using namespace std; using ll = long long; using pii = pair<ll,ll>; const ll Nm = 305; ll f[Nm]; ll getf(ll x) { if (f[x]==x) { return x; } return f[x]=getf(f[x]); } void fz(ll a, ll b) { a = getf(a); b = getf(b); if (a!=b) { f[a]=b; } } void solve(int N, int L) { for (ll i=0;i<N;i++) { f[i]=i; } vector<bool> frz(N,0); //frozen? for (ll T=0;T<N;T++) { for (ll i=(N-1);i>=0;i--) { if (!frz[i]) { ll jc = query(i+1,T+1)-1; if (jc>i || getf(jc)==getf(i)) { frz[i]=1; } else { answer(jc+1,i+1); } } } } }
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