oj.uz

답안 #525041

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
525041 2022-02-10T14:45:42 Z amunduzbaev Worst Reporter 4 (JOI21_worst_reporter4) C++17
14 / 100
 202 ms 197028 KB 
#include "bits/stdc++.h"
using namespace std;

#define ar array
typedef long long ll;
const int N = 5005;
vector<int> edges[N];
int used[N], is[N];
ll dp[N][N], c[N];
int a[N], h[N];

signed main(){
	ios::sync_with_stdio(0); cin.tie(0);
	
	int n; cin>>n;
	vector<int> p(n);
	for(int i=0;i<n;i++){
		cin>>a[i]>>h[i]>>c[i];
		a[i]--; p[i] = i;
	} sort(p.begin(), p.end(), [&](int i, int j) { return (h[i] < h[j]); });
	for(int i=0, last=0;i<n;){
		int j = i;
		while(j<n && h[p[i]] == h[p[j]]) j++;
		while(i < j) h[p[i]] = last, i++;
		last++;
	}
	
	vector<vector<int>> cc;
	for(int i=0;i<n;i++){
		if(used[i]) continue;
		vector<int> ss;
		int u = i;
		while(!used[u]){
			used[u] = 1;
			ss.push_back(u);
			u = a[u];
		}
		
		vector<int> tmp = {u};
		while(!ss.empty() && ss.back() != u){
			tmp.push_back(ss.back());
			ss.pop_back();
		}
		
		if(ss.empty()) continue;
		for(auto x : tmp) is[x] = 1;
		cc.push_back(tmp);
	}
	
	//~ for(auto v : cc){
		//~ for(auto x : v) cout<<x<<" ";
		//~ cout<<"\n";
	//~ } 
	
	for(int i=0;i<n;i++){
		if(is[i] && is[a[i]]) continue;
		edges[a[i]].push_back(i);
	}
	
	function<void(int)> dfs = [&](int u){
		dp[u][h[u]] += c[u];
		for(auto x : edges[u]){
			dfs(x);
			for(int j=0;j<n;j++){
				dp[u][j] += dp[x][j];
			}
		}
		
		if(!is[u]){
			for(int j=n-1;~j;j--){
				dp[u][j] = max(dp[u][j], dp[u][j+1]);
			}
		}
	};
	//~ for(int i=0;i<n;i++) cout<<h[i]<<" ";
	//~ cout<<"\n";
	for(int i=0;i<n;i++){
		if(!is[i]) continue;
		dfs(i);
	}
	
	//~ for(int i=0;i<n;i++){
		//~ for(int j=0;j<n;j++) cout<<dp[i][j]<<" ";
		//~ cout<<"\n";
	//~ }
	
	ll res = accumulate(c, c+n, 0ll);
	//~ cout<<res<<"\n";
	for(auto v : cc){
		ll tot = 0;
		for(int j=0;j<n;j++){
			ll rr = 0;
			for(auto x : v){
				rr += dp[x][j];
			} tot = max(tot, rr);
		} res -= tot;
	}
	
	cout<<res<<"\n";
}

/*

6
1 6 5
1 3 6
1 8 4
3 4 9
2 2 5
2 5 6

*/

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 0 ms 460 KB Output is correct
3 Correct 0 ms 460 KB Output is correct
4 Correct 0 ms 460 KB Output is correct
5 Correct 184 ms 196416 KB Output is correct
6 Correct 179 ms 196432 KB Output is correct
7 Correct 189 ms 196436 KB Output is correct
8 Correct 180 ms 196428 KB Output is correct
9 Correct 180 ms 196420 KB Output is correct
10 Correct 179 ms 196396 KB Output is correct
11 Correct 183 ms 196420 KB Output is correct
12 Correct 164 ms 197020 KB Output is correct
13 Correct 164 ms 197028 KB Output is correct
14 Correct 165 ms 196820 KB Output is correct
15 Correct 163 ms 196804 KB Output is correct
16 Correct 176 ms 196440 KB Output is correct
17 Correct 185 ms 196404 KB Output is correct
18 Correct 182 ms 196580 KB Output is correct
19 Correct 180 ms 196636 KB Output is correct
20 Correct 178 ms 196708 KB Output is correct
21 Correct 178 ms 196660 KB Output is correct
22 Correct 196 ms 196384 KB Output is correct
23 Correct 202 ms 196424 KB Output is correct
24 Correct 179 ms 196744 KB Output is correct
25 Correct 187 ms 196816 KB Output is correct
26 Correct 165 ms 196988 KB Output is correct
27 Correct 181 ms 196596 KB Output is correct
28 Correct 182 ms 196772 KB Output is correct
29 Correct 172 ms 196920 KB Output is correct
30 Correct 166 ms 196636 KB Output is correct
31 Correct 172 ms 196804 KB Output is correct

Subtask #2
0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 0 ms 460 KB Output is correct
3 Correct 0 ms 460 KB Output is correct
4 Correct 0 ms 460 KB Output is correct
5 Correct 184 ms 196416 KB Output is correct
6 Correct 179 ms 196432 KB Output is correct
7 Correct 189 ms 196436 KB Output is correct
8 Correct 180 ms 196428 KB Output is correct
9 Correct 180 ms 196420 KB Output is correct
10 Correct 179 ms 196396 KB Output is correct
11 Correct 183 ms 196420 KB Output is correct
12 Correct 164 ms 197020 KB Output is correct
13 Correct 164 ms 197028 KB Output is correct
14 Correct 165 ms 196820 KB Output is correct
15 Correct 163 ms 196804 KB Output is correct
16 Correct 176 ms 196440 KB Output is correct
17 Correct 185 ms 196404 KB Output is correct
18 Correct 182 ms 196580 KB Output is correct
19 Correct 180 ms 196636 KB Output is correct
20 Correct 178 ms 196708 KB Output is correct
21 Correct 178 ms 196660 KB Output is correct
22 Correct 196 ms 196384 KB Output is correct
23 Correct 202 ms 196424 KB Output is correct
24 Correct 179 ms 196744 KB Output is correct
25 Correct 187 ms 196816 KB Output is correct
26 Correct 165 ms 196988 KB Output is correct
27 Correct 181 ms 196596 KB Output is correct
28 Correct 182 ms 196772 KB Output is correct
29 Correct 172 ms 196920 KB Output is correct
30 Correct 166 ms 196636 KB Output is correct
31 Correct 172 ms 196804 KB Output is correct
32 Correct 188 ms 196496 KB Output is correct
33 Runtime error 81 ms 9560 KB Execution killed with signal 11
34 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 0 ms 460 KB Output is correct
3 Correct 0 ms 460 KB Output is correct
4 Correct 0 ms 460 KB Output is correct
5 Correct 184 ms 196416 KB Output is correct
6 Correct 179 ms 196432 KB Output is correct
7 Correct 189 ms 196436 KB Output is correct
8 Correct 180 ms 196428 KB Output is correct
9 Correct 180 ms 196420 KB Output is correct
10 Correct 179 ms 196396 KB Output is correct
11 Correct 183 ms 196420 KB Output is correct
12 Correct 164 ms 197020 KB Output is correct
13 Correct 164 ms 197028 KB Output is correct
14 Correct 165 ms 196820 KB Output is correct
15 Correct 163 ms 196804 KB Output is correct
16 Correct 176 ms 196440 KB Output is correct
17 Correct 185 ms 196404 KB Output is correct
18 Correct 182 ms 196580 KB Output is correct
19 Correct 180 ms 196636 KB Output is correct
20 Correct 178 ms 196708 KB Output is correct
21 Correct 178 ms 196660 KB Output is correct
22 Correct 196 ms 196384 KB Output is correct
23 Correct 202 ms 196424 KB Output is correct
24 Correct 179 ms 196744 KB Output is correct
25 Correct 187 ms 196816 KB Output is correct
26 Correct 165 ms 196988 KB Output is correct
27 Correct 181 ms 196596 KB Output is correct
28 Correct 182 ms 196772 KB Output is correct
29 Correct 172 ms 196920 KB Output is correct
30 Correct 166 ms 196636 KB Output is correct
31 Correct 172 ms 196804 KB Output is correct
32 Correct 188 ms 196496 KB Output is correct
33 Runtime error 81 ms 9560 KB Execution killed with signal 11
34 Halted 0 ms 0 KB -