oj.uz

Submission #97565

# Submission time Handle Problem Language Result Execution time Memory
97565 2019-02-17T07:57:48 Z oolimry Fireworks (APIO16_fireworks) C++14
55 / 100
 2000 ms 213012 KB 
#include <bits/stdc++.h>
using namespace std;
typedef pair<int, long long> ii;
vector<ii> adj[300005];
long long val[300005];
long long pw[300005];
priority_queue<long long> pq[300005];
void dfs(int u){
    if(adj[u].size() == 0){
        pq[u].push(pw[u]);
        pq[u].push(pw[u]);
        val[u] = 0;
        return;
    }
    long long highest = 0;
    for(long long i = 0;i < adj[u].size();i++){
        int v = adj[u][i].first;
        long long w = adj[u][i].second;
        dfs(v);
        if(pq[u].empty())
            highest += val[v];
        else if(pq[u].top() > pq[v].top())
            highest += val[v] + abs(pq[v].top() - pq[u].top());
        else
            highest += val[v] + (i) * abs(pq[v].top() - pq[u].top());
        //if(pq[v].size() > pq[u].size()) swap(pq[v],pq[u]);
        while(!pq[v].empty()){
            pq[u].push(pq[v].top());
            pq[v].pop();
        }
    }
    long long flatr;
    ///flatening out the line
    for(long long i = 0;i < adj[u].size();i++){
        flatr = pq[u].top();
        pq[u].pop();
        highest -= (adj[u].size() - i-1) * abs(flatr - pq[u].top());
    }
    val[u] = highest;
    long long flatl = pq[u].top();
    pq[u].pop();
    pq[u].push(pw[u] + flatl);
    pq[u].push(pw[u] + flatr);
}
int main()
{
    //freopen("i.txt","r",stdin);
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n, m;
    cin >> n >> m;
    n += m;
    for(int i = 1;i < n;i++){
        long long a, b;
        cin >> a >> b;
        adj[a-1].push_back(ii(i,b));
        pw[i] = b;
    }
    pw[0] = 0;
    fill(val,val+n,0);
    dfs(0);
    cout << val[0];
    return 0;
}

Compilation message

fireworks.cpp: In function 'void dfs(int)':
fireworks.cpp:16:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(long long i = 0;i < adj[u].size();i++){
                         ~~^~~~~~~~~~~~~~~
fireworks.cpp:18:19: warning: unused variable 'w' [-Wunused-variable]
         long long w = adj[u][i].second;
                   ^
fireworks.cpp:34:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(long long i = 0;i < adj[u].size();i++){
                         ~~^~~~~~~~~~~~~~~
fireworks.cpp:43:22: warning: 'flatr' may be used uninitialized in this function [-Wmaybe-uninitialized]
     pq[u].push(pw[u] + flatr);
                ~~~~~~^~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 16768 KB Output is correct
2 Correct 17 ms 16768 KB Output is correct
3 Correct 18 ms 16768 KB Output is correct
4 Correct 20 ms 16768 KB Output is correct
5 Correct 18 ms 16768 KB Output is correct
6 Correct 17 ms 16768 KB Output is correct
7 Correct 17 ms 16768 KB Output is correct
8 Correct 18 ms 16768 KB Output is correct
9 Correct 15 ms 16768 KB Output is correct
10 Correct 19 ms 16840 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 16768 KB Output is correct
2 Correct 16 ms 16780 KB Output is correct
3 Correct 17 ms 16740 KB Output is correct
4 Correct 18 ms 16768 KB Output is correct
5 Correct 17 ms 16768 KB Output is correct
6 Correct 17 ms 16768 KB Output is correct
7 Correct 18 ms 16896 KB Output is correct
8 Correct 18 ms 16768 KB Output is correct
9 Correct 18 ms 16768 KB Output is correct
10 Correct 18 ms 16804 KB Output is correct
11 Correct 16 ms 16896 KB Output is correct
12 Correct 19 ms 16896 KB Output is correct
13 Correct 18 ms 16972 KB Output is correct
14 Correct 17 ms 16768 KB Output is correct
15 Correct 17 ms 16896 KB Output is correct
16 Correct 18 ms 16896 KB Output is correct
17 Correct 17 ms 16896 KB Output is correct
18 Correct 16 ms 16896 KB Output is correct
19 Correct 18 ms 16768 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 16768 KB Output is correct
2 Correct 17 ms 16768 KB Output is correct
3 Correct 18 ms 16768 KB Output is correct
4 Correct 20 ms 16768 KB Output is correct
5 Correct 18 ms 16768 KB Output is correct
6 Correct 17 ms 16768 KB Output is correct
7 Correct 17 ms 16768 KB Output is correct
8 Correct 18 ms 16768 KB Output is correct
9 Correct 15 ms 16768 KB Output is correct
10 Correct 19 ms 16840 KB Output is correct
11 Correct 21 ms 16768 KB Output is correct
12 Correct 16 ms 16780 KB Output is correct
13 Correct 17 ms 16740 KB Output is correct
14 Correct 18 ms 16768 KB Output is correct
15 Correct 17 ms 16768 KB Output is correct
16 Correct 17 ms 16768 KB Output is correct
17 Correct 18 ms 16896 KB Output is correct
18 Correct 18 ms 16768 KB Output is correct
19 Correct 18 ms 16768 KB Output is correct
20 Correct 18 ms 16804 KB Output is correct
21 Correct 16 ms 16896 KB Output is correct
22 Correct 19 ms 16896 KB Output is correct
23 Correct 18 ms 16972 KB Output is correct
24 Correct 17 ms 16768 KB Output is correct
25 Correct 17 ms 16896 KB Output is correct
26 Correct 18 ms 16896 KB Output is correct
27 Correct 17 ms 16896 KB Output is correct
28 Correct 16 ms 16896 KB Output is correct
29 Correct 18 ms 16768 KB Output is correct
30 Correct 19 ms 16896 KB Output is correct
31 Correct 21 ms 17152 KB Output is correct
32 Correct 25 ms 17152 KB Output is correct
33 Correct 23 ms 17404 KB Output is correct
34 Correct 28 ms 17528 KB Output is correct
35 Correct 35 ms 18296 KB Output is correct
36 Correct 27 ms 18176 KB Output is correct
37 Correct 27 ms 18040 KB Output is correct
38 Correct 41 ms 19704 KB Output is correct
39 Correct 29 ms 18296 KB Output is correct
40 Correct 21 ms 17784 KB Output is correct
41 Correct 19 ms 17664 KB Output is correct
42 Correct 19 ms 17280 KB Output is correct
43 Correct 255 ms 48120 KB Output is correct
44 Correct 210 ms 40180 KB Output is correct
45 Correct 212 ms 39648 KB Output is correct
46 Correct 21 ms 17408 KB Output is correct
47 Correct 21 ms 17408 KB Output is correct
48 Correct 22 ms 17276 KB Output is correct
49 Correct 21 ms 17280 KB Output is correct
50 Correct 21 ms 17152 KB Output is correct
51 Correct 21 ms 17152 KB Output is correct
52 Correct 30 ms 17784 KB Output is correct
53 Correct 28 ms 17424 KB Output is correct
54 Correct 20 ms 17280 KB Output is correct

Subtask #4
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 16768 KB Output is correct
2 Correct 17 ms 16768 KB Output is correct
3 Correct 18 ms 16768 KB Output is correct
4 Correct 20 ms 16768 KB Output is correct
5 Correct 18 ms 16768 KB Output is correct
6 Correct 17 ms 16768 KB Output is correct
7 Correct 17 ms 16768 KB Output is correct
8 Correct 18 ms 16768 KB Output is correct
9 Correct 15 ms 16768 KB Output is correct
10 Correct 19 ms 16840 KB Output is correct
11 Correct 21 ms 16768 KB Output is correct
12 Correct 16 ms 16780 KB Output is correct
13 Correct 17 ms 16740 KB Output is correct
14 Correct 18 ms 16768 KB Output is correct
15 Correct 17 ms 16768 KB Output is correct
16 Correct 17 ms 16768 KB Output is correct
17 Correct 18 ms 16896 KB Output is correct
18 Correct 18 ms 16768 KB Output is correct
19 Correct 18 ms 16768 KB Output is correct
20 Correct 18 ms 16804 KB Output is correct
21 Correct 16 ms 16896 KB Output is correct
22 Correct 19 ms 16896 KB Output is correct
23 Correct 18 ms 16972 KB Output is correct
24 Correct 17 ms 16768 KB Output is correct
25 Correct 17 ms 16896 KB Output is correct
26 Correct 18 ms 16896 KB Output is correct
27 Correct 17 ms 16896 KB Output is correct
28 Correct 16 ms 16896 KB Output is correct
29 Correct 18 ms 16768 KB Output is correct
30 Correct 19 ms 16896 KB Output is correct
31 Correct 21 ms 17152 KB Output is correct
32 Correct 25 ms 17152 KB Output is correct
33 Correct 23 ms 17404 KB Output is correct
34 Correct 28 ms 17528 KB Output is correct
35 Correct 35 ms 18296 KB Output is correct
36 Correct 27 ms 18176 KB Output is correct
37 Correct 27 ms 18040 KB Output is correct
38 Correct 41 ms 19704 KB Output is correct
39 Correct 29 ms 18296 KB Output is correct
40 Correct 21 ms 17784 KB Output is correct
41 Correct 19 ms 17664 KB Output is correct
42 Correct 19 ms 17280 KB Output is correct
43 Correct 255 ms 48120 KB Output is correct
44 Correct 210 ms 40180 KB Output is correct
45 Correct 212 ms 39648 KB Output is correct
46 Correct 21 ms 17408 KB Output is correct
47 Correct 21 ms 17408 KB Output is correct
48 Correct 22 ms 17276 KB Output is correct
49 Correct 21 ms 17280 KB Output is correct
50 Correct 21 ms 17152 KB Output is correct
51 Correct 21 ms 17152 KB Output is correct
52 Correct 30 ms 17784 KB Output is correct
53 Correct 28 ms 17424 KB Output is correct
54 Correct 20 ms 17280 KB Output is correct
55 Correct 78 ms 23900 KB Output is correct
56 Correct 534 ms 70564 KB Output is correct
57 Correct 1174 ms 122304 KB Output is correct
58 Correct 1346 ms 141260 KB Output is correct
59 Execution timed out 2068 ms 213012 KB Time limit exceeded
60 Halted 0 ms 0 KB -