oj.uz

Submission #722204

# Submission time Handle Problem Language Result Execution time Memory
722204 2023-04-11T15:02:37 Z 600Mihnea Worst Reporter 4 (JOI21_worst_reporter4) C++17
14 / 100
 2000 ms 26188 KB 
#include <cmath>
#include <functional>
#include <fstream>
#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <set>
#include <map>
#include <list>
#include <time.h>
#include <math.h>
#include <random>
#include <deque>
#include <cassert>
#include <queue>
#include <unordered_map>
#include <unordered_set>
#include <iomanip>
#include <bitset>
#include <sstream>
#include <stack>
#include <chrono>
#include <cstring>
#include <numeric>
using namespace std;
typedef long long ll;
const int N = 200000 + 7;
const ll INF = (ll)1e18 + 7;
int n;
int par[N];
int h[N];
int c[N];
vector<int> g[N];
int dep[N];
ll dp[N];
ll compute(int a, int dim) {
	ll sol = c[a];
	for (auto& b : g[a]) {
		sol += compute(b, dim);
	}
	if (h[a] >= dim) {
		sol = min(sol, dp[a]);
	}
	return sol;
}
void compute(int a) {
	dp[a] = 0;
	for (auto& b : g[a]) {
		dp[a] += compute(b, h[a]);
	}
}
void build1(int a) {
	for (auto& b : g[a]) {
		dep[b] = 1 + dep[a];
		build1(b);
	}
}
signed main() {
#ifdef ONPC	
	FILE* stream;
	freopen_s(&stream, "input.txt", "r", stdin);
#else
	ios::sync_with_stdio(false);
	cin.tie(0); cout.tie(0);
#endif
	cin >> n;
	for (int i = 1; i <= n; i++) {
		cin >> par[i] >> h[i] >> c[i];
	}
	assert(par[1] == 1);
	for (int i = 2; i <= n; i++) {
		assert(1 <= par[i] && par[i] <= i - 1);
		g[par[i]].push_back(i);
	}
	build1(1);
	vector<int> ord(n);
	iota(ord.begin(), ord.end(), 1);
	sort(ord.begin(), ord.end(), [&](int a, int b) {
		if (h[a] != h[b]) {
			return h[a] > h[b];
		}
		return dep[a] > dep[b];
	});
	for (auto& a : ord) {
		compute(a);
	}
	cout << compute(1, 0) << "\n";
	return 0;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 7 ms 5204 KB Output is correct
6 Correct 6 ms 5204 KB Output is correct
7 Correct 6 ms 5204 KB Output is correct
8 Correct 6 ms 5204 KB Output is correct
9 Correct 7 ms 5204 KB Output is correct
10 Correct 6 ms 5204 KB Output is correct
11 Correct 6 ms 5204 KB Output is correct
12 Correct 106 ms 5552 KB Output is correct
13 Correct 97 ms 5564 KB Output is correct
14 Correct 55 ms 5432 KB Output is correct
15 Correct 61 ms 5432 KB Output is correct
16 Correct 7 ms 5204 KB Output is correct
17 Correct 6 ms 5204 KB Output is correct
18 Correct 5 ms 5152 KB Output is correct
19 Correct 55 ms 5364 KB Output is correct
20 Correct 53 ms 5452 KB Output is correct
21 Correct 51 ms 5332 KB Output is correct
22 Correct 5 ms 5204 KB Output is correct
23 Correct 4 ms 5204 KB Output is correct
24 Correct 71 ms 5380 KB Output is correct
25 Correct 69 ms 5376 KB Output is correct
26 Correct 83 ms 5520 KB Output is correct
27 Correct 36 ms 5276 KB Output is correct
28 Correct 67 ms 5364 KB Output is correct
29 Correct 91 ms 5380 KB Output is correct
30 Correct 49 ms 5436 KB Output is correct
31 Correct 46 ms 5332 KB Output is correct

Subtask #2
0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 7 ms 5204 KB Output is correct
6 Correct 6 ms 5204 KB Output is correct
7 Correct 6 ms 5204 KB Output is correct
8 Correct 6 ms 5204 KB Output is correct
9 Correct 7 ms 5204 KB Output is correct
10 Correct 6 ms 5204 KB Output is correct
11 Correct 6 ms 5204 KB Output is correct
12 Correct 106 ms 5552 KB Output is correct
13 Correct 97 ms 5564 KB Output is correct
14 Correct 55 ms 5432 KB Output is correct
15 Correct 61 ms 5432 KB Output is correct
16 Correct 7 ms 5204 KB Output is correct
17 Correct 6 ms 5204 KB Output is correct
18 Correct 5 ms 5152 KB Output is correct
19 Correct 55 ms 5364 KB Output is correct
20 Correct 53 ms 5452 KB Output is correct
21 Correct 51 ms 5332 KB Output is correct
22 Correct 5 ms 5204 KB Output is correct
23 Correct 4 ms 5204 KB Output is correct
24 Correct 71 ms 5380 KB Output is correct
25 Correct 69 ms 5376 KB Output is correct
26 Correct 83 ms 5520 KB Output is correct
27 Correct 36 ms 5276 KB Output is correct
28 Correct 67 ms 5364 KB Output is correct
29 Correct 91 ms 5380 KB Output is correct
30 Correct 49 ms 5436 KB Output is correct
31 Correct 46 ms 5332 KB Output is correct
32 Correct 5 ms 5204 KB Output is correct
33 Correct 276 ms 13740 KB Output is correct
34 Correct 296 ms 13716 KB Output is correct
35 Correct 318 ms 13636 KB Output is correct
36 Correct 348 ms 13812 KB Output is correct
37 Correct 332 ms 13712 KB Output is correct
38 Correct 303 ms 13844 KB Output is correct
39 Execution timed out 2064 ms 26188 KB Time limit exceeded
40 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 7 ms 5204 KB Output is correct
6 Correct 6 ms 5204 KB Output is correct
7 Correct 6 ms 5204 KB Output is correct
8 Correct 6 ms 5204 KB Output is correct
9 Correct 7 ms 5204 KB Output is correct
10 Correct 6 ms 5204 KB Output is correct
11 Correct 6 ms 5204 KB Output is correct
12 Correct 106 ms 5552 KB Output is correct
13 Correct 97 ms 5564 KB Output is correct
14 Correct 55 ms 5432 KB Output is correct
15 Correct 61 ms 5432 KB Output is correct
16 Correct 7 ms 5204 KB Output is correct
17 Correct 6 ms 5204 KB Output is correct
18 Correct 5 ms 5152 KB Output is correct
19 Correct 55 ms 5364 KB Output is correct
20 Correct 53 ms 5452 KB Output is correct
21 Correct 51 ms 5332 KB Output is correct
22 Correct 5 ms 5204 KB Output is correct
23 Correct 4 ms 5204 KB Output is correct
24 Correct 71 ms 5380 KB Output is correct
25 Correct 69 ms 5376 KB Output is correct
26 Correct 83 ms 5520 KB Output is correct
27 Correct 36 ms 5276 KB Output is correct
28 Correct 67 ms 5364 KB Output is correct
29 Correct 91 ms 5380 KB Output is correct
30 Correct 49 ms 5436 KB Output is correct
31 Correct 46 ms 5332 KB Output is correct
32 Correct 5 ms 5204 KB Output is correct
33 Correct 276 ms 13740 KB Output is correct
34 Correct 296 ms 13716 KB Output is correct
35 Correct 318 ms 13636 KB Output is correct
36 Correct 348 ms 13812 KB Output is correct
37 Correct 332 ms 13712 KB Output is correct
38 Correct 303 ms 13844 KB Output is correct
39 Execution timed out 2064 ms 26188 KB Time limit exceeded
40 Halted 0 ms 0 KB -