oj.uz

답안 #532824

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
532824 2022-03-04T03:12:04 Z fhvirus Worst Reporter 4 (JOI21_worst_reporter4) C++17
79 / 100
 380 ms 94212 KB 
// Knapsack DP is harder than FFT.
#include<bits/stdc++.h>
using namespace std;
typedef long long ll; typedef pair<int,int> pii;
#define ff first
#define ss second
#define pb emplace_back
#define AI(x) begin(x),end(x)
#ifdef OWO
#define debug(args...) SDF(#args, args)
#define OIU(args...) ostream& operator<<(ostream&O,args)
#define LKJ(S,B,E,F) template<class...T>OIU(S<T...>s){O<<B;int c=0;for(auto i:s)O<<(c++?", ":"")<<F;return O<<E;}
LKJ(vector,'[',']',i)LKJ(deque,'[',']',i)LKJ(set,'{','}',i)LKJ(multiset,'{','}',i)LKJ(unordered_set,'{','}',i)LKJ(map,'{','}',i.ff<<':'<<i.ss)LKJ(unordered_map,'{','}',i.ff<<':'<<i.ss)
template<class...T>void SDF(const char* s,T...a){int c=sizeof...(T);if(!c){cerr<<"\033[1;32mvoid\033[0m\n";return;}(cerr<<"\033[1;32m("<<s<<") = (",...,(cerr<<a<<(--c?", ":")\033[0m\n")));}
template<class T,size_t N>OIU(array<T,N>a){return O<<vector<T>(AI(a));}template<class...T>OIU(pair<T...>p){return O<<'('<<p.ff<<','<<p.ss<<')';}template<class...T>OIU(tuple<T...>t){return O<<'(',apply([&O](T...s){int c=0;(...,(O<<(c++?", ":"")<<s));},t),O<<')';}
#else
#define debug(...) ((void)0)
#endif

const int kN = 200002;
int N, A[kN], H[kN], C[kN];

map<int, ll> dp[kN];

void add(map<int, ll>& mp, int pos, ll val) {
	mp[pos] += val;
	while (val > 0) {
		auto it = mp.lower_bound(pos);
		if (it == begin(mp)) break;
		it = prev(it);
		ll d = min(val, it->ss);
		val -= d;
		it->ss -= d;
		if (it->ss == 0) mp.erase(it);
	}
}
void merge(map<int, ll>& a, map<int, ll>& b) {
	if (a.size() < b.size()) swap(a, b);
	for (const auto& [pos, val]: b)
		a[pos] += val;
}

int indeg[kN];
vector<vector<int>> cycles;

int vis[kN], tot;
void dfs(int u) {
	vis[u] = tot;
	int v = A[u];
	if (vis[v] == 0) dfs(v);
	else if (vis[v] == tot) {
		vector<int> cycle;
		do {
			cycle.emplace_back(v);
			v = A[v];
		} while (v != u);
		cycles.push_back(cycle);
	}
}

signed main() {
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

	cin >> N;
	for (int i = 1; i <= N; ++i) {
		cin >> A[i] >> H[i] >> C[i];
		++indeg[A[i]];
	}

	for (int i = 1; i <= N; ++i)
		if (vis[i] == 0) {
			++tot;
			dfs(i);
		}

	queue<int> q;
	for (int i = 1; i <= N; ++i)
		if (indeg[i] == 0) q.push(i);

	while (!q.empty()) {
		int i = q.front(); q.pop();
		add(dp[i], H[i], C[i]);
		merge(dp[A[i]], dp[i]);
		if ((--indeg[A[i]]) == 0)
			q.push(A[i]);
	}

	ll ans = accumulate(C + 1, C + N + 1, 0ll);
	for (const vector<int>& cycle: cycles) {
		map<int, ll> mp;
		for (const int& u: cycle) {
			add(dp[u], H[u], C[u]);
			merge(mp, dp[u]);
		}
		for (const auto& [pos, val]: mp)
			ans -= val;
	}

	cout << ans << '\n';

	return 0;
}

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 9676 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct
3 Correct 8 ms 9736 KB Output is correct
4 Correct 5 ms 9676 KB Output is correct
5 Correct 10 ms 11168 KB Output is correct
6 Correct 9 ms 10524 KB Output is correct
7 Correct 12 ms 10248 KB Output is correct
8 Correct 10 ms 11148 KB Output is correct
9 Correct 8 ms 10484 KB Output is correct
10 Correct 8 ms 10316 KB Output is correct
11 Correct 7 ms 10060 KB Output is correct
12 Correct 8 ms 9932 KB Output is correct
13 Correct 9 ms 9920 KB Output is correct
14 Correct 12 ms 9864 KB Output is correct
15 Correct 8 ms 9932 KB Output is correct
16 Correct 14 ms 11280 KB Output is correct
17 Correct 10 ms 10572 KB Output is correct
18 Correct 7 ms 10060 KB Output is correct
19 Correct 8 ms 10188 KB Output is correct
20 Correct 7 ms 10060 KB Output is correct
21 Correct 7 ms 10100 KB Output is correct
22 Correct 8 ms 10444 KB Output is correct
23 Correct 7 ms 10188 KB Output is correct
24 Correct 9 ms 10188 KB Output is correct
25 Correct 7 ms 10060 KB Output is correct
26 Correct 7 ms 9860 KB Output is correct
27 Correct 12 ms 10428 KB Output is correct
28 Correct 9 ms 10268 KB Output is correct
29 Correct 8 ms 10188 KB Output is correct
30 Correct 10 ms 10380 KB Output is correct
31 Correct 10 ms 10488 KB Output is correct

Subtask #2
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 9676 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct
3 Correct 8 ms 9736 KB Output is correct
4 Correct 5 ms 9676 KB Output is correct
5 Correct 10 ms 11168 KB Output is correct
6 Correct 9 ms 10524 KB Output is correct
7 Correct 12 ms 10248 KB Output is correct
8 Correct 10 ms 11148 KB Output is correct
9 Correct 8 ms 10484 KB Output is correct
10 Correct 8 ms 10316 KB Output is correct
11 Correct 7 ms 10060 KB Output is correct
12 Correct 8 ms 9932 KB Output is correct
13 Correct 9 ms 9920 KB Output is correct
14 Correct 12 ms 9864 KB Output is correct
15 Correct 8 ms 9932 KB Output is correct
16 Correct 14 ms 11280 KB Output is correct
17 Correct 10 ms 10572 KB Output is correct
18 Correct 7 ms 10060 KB Output is correct
19 Correct 8 ms 10188 KB Output is correct
20 Correct 7 ms 10060 KB Output is correct
21 Correct 7 ms 10100 KB Output is correct
22 Correct 8 ms 10444 KB Output is correct
23 Correct 7 ms 10188 KB Output is correct
24 Correct 9 ms 10188 KB Output is correct
25 Correct 7 ms 10060 KB Output is correct
26 Correct 7 ms 9860 KB Output is correct
27 Correct 12 ms 10428 KB Output is correct
28 Correct 9 ms 10268 KB Output is correct
29 Correct 8 ms 10188 KB Output is correct
30 Correct 10 ms 10380 KB Output is correct
31 Correct 10 ms 10488 KB Output is correct
32 Correct 13 ms 11084 KB Output is correct
33 Correct 380 ms 83856 KB Output is correct
34 Correct 282 ms 53392 KB Output is correct
35 Correct 361 ms 83232 KB Output is correct
36 Correct 287 ms 53204 KB Output is correct
37 Correct 158 ms 26924 KB Output is correct
38 Correct 103 ms 21492 KB Output is correct
39 Correct 121 ms 15208 KB Output is correct
40 Correct 115 ms 15020 KB Output is correct
41 Correct 93 ms 14984 KB Output is correct
42 Correct 113 ms 15092 KB Output is correct
43 Correct 109 ms 15076 KB Output is correct
44 Correct 328 ms 94212 KB Output is correct
45 Correct 206 ms 58568 KB Output is correct
46 Correct 91 ms 21052 KB Output is correct
47 Correct 170 ms 27844 KB Output is correct
48 Correct 97 ms 20932 KB Output is correct
49 Correct 92 ms 20932 KB Output is correct
50 Correct 226 ms 39344 KB Output is correct
51 Correct 89 ms 26800 KB Output is correct
52 Correct 252 ms 28108 KB Output is correct
53 Correct 95 ms 21060 KB Output is correct
54 Correct 80 ms 14960 KB Output is correct
55 Correct 156 ms 32724 KB Output is correct
56 Correct 151 ms 28148 KB Output is correct
57 Correct 119 ms 27544 KB Output is correct
58 Correct 176 ms 33776 KB Output is correct
59 Correct 174 ms 33800 KB Output is correct

Subtask #3
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 9676 KB Output is correct
2 Correct 7 ms 9728 KB Output is correct
3 Correct 8 ms 9736 KB Output is correct
4 Correct 5 ms 9676 KB Output is correct
5 Correct 10 ms 11168 KB Output is correct
6 Correct 9 ms 10524 KB Output is correct
7 Correct 12 ms 10248 KB Output is correct
8 Correct 10 ms 11148 KB Output is correct
9 Correct 8 ms 10484 KB Output is correct
10 Correct 8 ms 10316 KB Output is correct
11 Correct 7 ms 10060 KB Output is correct
12 Correct 8 ms 9932 KB Output is correct
13 Correct 9 ms 9920 KB Output is correct
14 Correct 12 ms 9864 KB Output is correct
15 Correct 8 ms 9932 KB Output is correct
16 Correct 14 ms 11280 KB Output is correct
17 Correct 10 ms 10572 KB Output is correct
18 Correct 7 ms 10060 KB Output is correct
19 Correct 8 ms 10188 KB Output is correct
20 Correct 7 ms 10060 KB Output is correct
21 Correct 7 ms 10100 KB Output is correct
22 Correct 8 ms 10444 KB Output is correct
23 Correct 7 ms 10188 KB Output is correct
24 Correct 9 ms 10188 KB Output is correct
25 Correct 7 ms 10060 KB Output is correct
26 Correct 7 ms 9860 KB Output is correct
27 Correct 12 ms 10428 KB Output is correct
28 Correct 9 ms 10268 KB Output is correct
29 Correct 8 ms 10188 KB Output is correct
30 Correct 10 ms 10380 KB Output is correct
31 Correct 10 ms 10488 KB Output is correct
32 Correct 13 ms 11084 KB Output is correct
33 Correct 380 ms 83856 KB Output is correct
34 Correct 282 ms 53392 KB Output is correct
35 Correct 361 ms 83232 KB Output is correct
36 Correct 287 ms 53204 KB Output is correct
37 Correct 158 ms 26924 KB Output is correct
38 Correct 103 ms 21492 KB Output is correct
39 Correct 121 ms 15208 KB Output is correct
40 Correct 115 ms 15020 KB Output is correct
41 Correct 93 ms 14984 KB Output is correct
42 Correct 113 ms 15092 KB Output is correct
43 Correct 109 ms 15076 KB Output is correct
44 Correct 328 ms 94212 KB Output is correct
45 Correct 206 ms 58568 KB Output is correct
46 Correct 91 ms 21052 KB Output is correct
47 Correct 170 ms 27844 KB Output is correct
48 Correct 97 ms 20932 KB Output is correct
49 Correct 92 ms 20932 KB Output is correct
50 Correct 226 ms 39344 KB Output is correct
51 Correct 89 ms 26800 KB Output is correct
52 Correct 252 ms 28108 KB Output is correct
53 Correct 95 ms 21060 KB Output is correct
54 Correct 80 ms 14960 KB Output is correct
55 Correct 156 ms 32724 KB Output is correct
56 Correct 151 ms 28148 KB Output is correct
57 Correct 119 ms 27544 KB Output is correct
58 Correct 176 ms 33776 KB Output is correct
59 Correct 174 ms 33800 KB Output is correct
60 Correct 5 ms 9676 KB Output is correct
61 Correct 5 ms 9676 KB Output is correct
62 Correct 6 ms 9676 KB Output is correct
63 Correct 6 ms 9676 KB Output is correct
64 Incorrect 299 ms 55644 KB Output isn't correct
65 Halted 0 ms 0 KB -