oj.uz

Submission #398753

# Submission time Handle Problem Language Result Execution time Memory
398753 2021-05-04T19:26:27 Z 4fecta Worst Reporter 4 (JOI21_worst_reporter4) C++17
14 / 100
 345 ms 398052 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define int ll
#define ld long double
#define pii pair<int, int>
#define f first
#define s second
#define boost() cin.tie(0), cin.sync_with_stdio(0)

const int MN = 5005;

int n, a[MN], h[MN], c[MN], dp[MN][MN];
vector<int> hs, adj[MN];
map<int, int> mp;

void dfs(int cur) {
    for (int i = 1; i <= hs.size(); i++) dp[cur][i] = i == h[cur] ? 0 : c[cur];
    for (int nxt : adj[cur]) {
        dfs(nxt);
        for (int i = 1; i <= hs.size(); i++) dp[cur][i] += dp[nxt][i];
    }
    for (int i = hs.size(); i > 0; i--) dp[cur][i] = min(dp[cur][i], dp[cur][i + 1]);
}

int32_t main() {
    boost();

    cin >> n;
    for (int i = 1; i <= n; i++) {
        cin >> a[i] >> h[i] >> c[i];
        if (i > 1) adj[a[i]].push_back(i);
        hs.push_back(h[i]);
    }
    sort(hs.begin(), hs.end());
    hs.erase(unique(hs.begin(), hs.end()), hs.end());
    for (int i = 0; i < hs.size(); i++) mp[hs[i]] = i + 1;
    for (int i = 1; i <= n; i++) h[i] = mp[h[i]];
    memset(dp, 0x3f, sizeof(dp));
    dfs(1);
    printf("%lld\n", dp[1][1]);

    return 0;
}

Compilation message

worst_reporter2.cpp: In function 'void dfs(long long int)':
worst_reporter2.cpp:18:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |     for (int i = 1; i <= hs.size(); i++) dp[cur][i] = i == h[cur] ? 0 : c[cur];
      |                     ~~^~~~~~~~~~~~
worst_reporter2.cpp:21:27: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |         for (int i = 1; i <= hs.size(); i++) dp[cur][i] += dp[nxt][i];
      |                         ~~^~~~~~~~~~~~
worst_reporter2.cpp: In function 'int32_t main()':
worst_reporter2.cpp:37:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |     for (int i = 0; i < hs.size(); i++) mp[hs[i]] = i + 1;
      |                     ~~^~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 196448 KB Output is correct
2 Correct 87 ms 196452 KB Output is correct
3 Correct 87 ms 196516 KB Output is correct
4 Correct 88 ms 196420 KB Output is correct
5 Correct 237 ms 197172 KB Output is correct
6 Correct 94 ms 196776 KB Output is correct
7 Correct 89 ms 196796 KB Output is correct
8 Correct 241 ms 197200 KB Output is correct
9 Correct 94 ms 196808 KB Output is correct
10 Correct 90 ms 196812 KB Output is correct
11 Correct 91 ms 196876 KB Output is correct
12 Correct 250 ms 197700 KB Output is correct
13 Correct 91 ms 197328 KB Output is correct
14 Correct 244 ms 197440 KB Output is correct
15 Correct 95 ms 197040 KB Output is correct
16 Correct 240 ms 197188 KB Output is correct
17 Correct 94 ms 196824 KB Output is correct
18 Correct 89 ms 196820 KB Output is correct
19 Correct 239 ms 197320 KB Output is correct
20 Correct 97 ms 197068 KB Output is correct
21 Correct 89 ms 196976 KB Output is correct
22 Correct 236 ms 197060 KB Output is correct
23 Correct 92 ms 196800 KB Output is correct
24 Correct 241 ms 197436 KB Output is correct
25 Correct 93 ms 197060 KB Output is correct
26 Correct 246 ms 197644 KB Output is correct
27 Correct 240 ms 197444 KB Output is correct
28 Correct 240 ms 197616 KB Output is correct
29 Correct 241 ms 197444 KB Output is correct
30 Correct 244 ms 197484 KB Output is correct
31 Correct 245 ms 197372 KB Output is correct

Subtask #2
0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 237 ms 197184 KB Output is correct
2 Runtime error 345 ms 398052 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 196448 KB Output is correct
2 Correct 87 ms 196452 KB Output is correct
3 Correct 87 ms 196516 KB Output is correct
4 Correct 88 ms 196420 KB Output is correct
5 Correct 237 ms 197172 KB Output is correct
6 Correct 94 ms 196776 KB Output is correct
7 Correct 89 ms 196796 KB Output is correct
8 Correct 241 ms 197200 KB Output is correct
9 Correct 94 ms 196808 KB Output is correct
10 Correct 90 ms 196812 KB Output is correct
11 Correct 91 ms 196876 KB Output is correct
12 Correct 250 ms 197700 KB Output is correct
13 Correct 91 ms 197328 KB Output is correct
14 Correct 244 ms 197440 KB Output is correct
15 Correct 95 ms 197040 KB Output is correct
16 Correct 240 ms 197188 KB Output is correct
17 Correct 94 ms 196824 KB Output is correct
18 Correct 89 ms 196820 KB Output is correct
19 Correct 239 ms 197320 KB Output is correct
20 Correct 97 ms 197068 KB Output is correct
21 Correct 89 ms 196976 KB Output is correct
22 Correct 236 ms 197060 KB Output is correct
23 Correct 92 ms 196800 KB Output is correct
24 Correct 241 ms 197436 KB Output is correct
25 Correct 93 ms 197060 KB Output is correct
26 Correct 246 ms 197644 KB Output is correct
27 Correct 240 ms 197444 KB Output is correct
28 Correct 240 ms 197616 KB Output is correct
29 Correct 241 ms 197444 KB Output is correct
30 Correct 244 ms 197484 KB Output is correct
31 Correct 245 ms 197372 KB Output is correct
32 Correct 237 ms 197184 KB Output is correct
33 Runtime error 345 ms 398052 KB Execution killed with signal 11
34 Halted 0 ms 0 KB -