Submission #1200592

#TimeUsernameProblemLanguageResultExecution timeMemory
1200592countless도로 폐쇄 (APIO21_roads)C++20
7 / 100
521 ms9620 KiB
#include "roads.h" #include <bits/stdc++.h> using namespace std; typedef long long ll; typedef long double ld; const ll MOD = 998244353; const ll INF = 1e18; const ld EPS = 1e-12; #define endl "\n" #define sp <<" "<< #define REP(i, a, b) for(ll i = a; i < b; i++) #define dbg(x) cout << #x << " = " << x << endl #define mp make_pair #define pb push_back #define fi first #define se second #define fast_io() ios_base::sync_with_stdio(false); cin.tie(NULL) #define all(x) (x).begin(), (x).end() #define rall(x) (x).rbegin(), (x).rend() #define sz(x) ((ll)(x).size()) struct custom_hash { static uint64_t splitmix64(uint64_t x) { // http://xorshift.di.unimi.it/splitmix64.c x += 0x9e3779b97f4a7c15; x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9; x = (x ^ (x >> 27)) * 0x94d049bb133111eb; return x ^ (x >> 31); } size_t operator()(uint64_t x) const { static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count(); return splitmix64(x + FIXED_RANDOM); } }; template <typename Key, typename Value> using hash_map = unordered_map<Key, Value, custom_hash>; mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); // uniform_int_distribution<int>(a, b)(rng); // shuffle(all(a), rng); vector<ll> minimum_closure_costs(int N, vector<int> U, vector<int> V, vector<int> W) { vector<ll> ans(N, 0); // k == 0 ll sum = 0; REP(i, 0, N-1) { sum += W[i]; } ans[0] = sum; // k == 1 vector<pair<ll, ll>> dp(N, {INF, INF}); dp[1] = {W[0], 0}; REP(i, 2, N) { // take dp[i].first = min(dp[i-1].first, dp[i-1].second) + W[i-1]; // no take dp[i].second = dp[i-1].first; cerr << i sp W[i-1] sp dp[i].first sp dp[i].second << endl; } ans[1] = min(dp[N-1].first, dp[N-1].second); return ans; }
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