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Submission #1002229

# Submission time Handle Problem Language Result Execution time Memory
1002229 2024-06-19T11:09:30 Z vjudge1 Fireworks (APIO16_fireworks) C++17
100 / 100
 241 ms 76832 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
 
const int  N = 4e5 + 30, MOD = 1e9 + 7;
int n,m;
vector<pair<int,int>> g[N];
multiset<ll> st[N];
ll h[N],l[N],r[N];
int mx[N];
void merge(int v,int to){
    if((int)st[v].size() < (int)st[to].size()){
        st[v].swap(st[to]);
        swap(mx[v],mx[to]);
        swap(l[v],l[to]);
        swap(r[v],r[to]);
    }
    mx[v]+=mx[to];
    for(ll j:st[to]){
        st[v].insert(j);
    }
    st[to].clear();
}
void dfs(int v,int W = 0){
    if(g[v].empty()){
        st[v].insert(W);
        st[v].insert(W);
        mx[v] = 1;
        h[v] = 0;
        l[v] = r[v] = W;
        return;
    }
    for(auto [to,w]:g[v]){
        dfs(to,w);
        merge(v,to);
    }
    assert(mx[v] == (int)g[v].size());
    while(mx[v] > 1){
        mx[v]--;
        st[v].erase(st[v].find(*st[v].rbegin()));
    }
    ll x = (*st[v].rbegin());
    st[v].erase(st[v].find(*st[v].rbegin()));
    ll y = (*st[v].rbegin());
    st[v].erase(st[v].find(*st[v].rbegin()));
    st[v].insert(x + W);
    st[v].insert(y + W);
    r[v] = (*st[v].rbegin());
    l[v] = (*(++(st[v].rbegin())));
}
ll E = 0;
void test(){
    cin >> n >> m;
    for(int i = 2;i <= n + m;i++){
        int a,b;
        cin >> a >> b;
        g[a].push_back({i,b});
        E += b;
    }
    dfs(1);
    st[1].erase(--st[1].end());
    ll H = 0;
    for(ll i:st[1]){
        E -= i;
    }
    cout << E << '\n';
}
signed main() {
    ios_base::sync_with_stdio(false);cin.tie(0);
    int t = 1;
    // cin >> t;
    while(t--){
        test();
    }
}

Compilation message

fireworks.cpp: In function 'void test()':
fireworks.cpp:64:8: warning: unused variable 'H' [-Wunused-variable]
   64 |     ll H = 0;
      |        ^

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 35160 KB Output is correct
2 Correct 5 ms 35160 KB Output is correct
3 Correct 5 ms 35164 KB Output is correct
4 Correct 5 ms 35164 KB Output is correct
5 Correct 5 ms 35164 KB Output is correct
6 Correct 6 ms 35164 KB Output is correct
7 Correct 5 ms 35328 KB Output is correct
8 Correct 5 ms 35164 KB Output is correct
9 Correct 6 ms 35164 KB Output is correct
10 Correct 5 ms 35164 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 35164 KB Output is correct
2 Correct 5 ms 35164 KB Output is correct
3 Correct 4 ms 35164 KB Output is correct
4 Correct 5 ms 35164 KB Output is correct
5 Correct 5 ms 35164 KB Output is correct
6 Correct 6 ms 35160 KB Output is correct
7 Correct 5 ms 35164 KB Output is correct
8 Correct 5 ms 35316 KB Output is correct
9 Correct 6 ms 35232 KB Output is correct
10 Correct 5 ms 35272 KB Output is correct
11 Correct 5 ms 35164 KB Output is correct
12 Correct 5 ms 35264 KB Output is correct
13 Correct 5 ms 35164 KB Output is correct
14 Correct 5 ms 35164 KB Output is correct
15 Correct 5 ms 35164 KB Output is correct
16 Correct 5 ms 35416 KB Output is correct
17 Correct 5 ms 35268 KB Output is correct
18 Correct 4 ms 35164 KB Output is correct
19 Correct 4 ms 35164 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 35160 KB Output is correct
2 Correct 5 ms 35160 KB Output is correct
3 Correct 5 ms 35164 KB Output is correct
4 Correct 5 ms 35164 KB Output is correct
5 Correct 5 ms 35164 KB Output is correct
6 Correct 6 ms 35164 KB Output is correct
7 Correct 5 ms 35328 KB Output is correct
8 Correct 5 ms 35164 KB Output is correct
9 Correct 6 ms 35164 KB Output is correct
10 Correct 5 ms 35164 KB Output is correct
11 Correct 5 ms 35164 KB Output is correct
12 Correct 5 ms 35164 KB Output is correct
13 Correct 4 ms 35164 KB Output is correct
14 Correct 5 ms 35164 KB Output is correct
15 Correct 5 ms 35164 KB Output is correct
16 Correct 6 ms 35160 KB Output is correct
17 Correct 5 ms 35164 KB Output is correct
18 Correct 5 ms 35316 KB Output is correct
19 Correct 6 ms 35232 KB Output is correct
20 Correct 5 ms 35272 KB Output is correct
21 Correct 5 ms 35164 KB Output is correct
22 Correct 5 ms 35264 KB Output is correct
23 Correct 5 ms 35164 KB Output is correct
24 Correct 5 ms 35164 KB Output is correct
25 Correct 5 ms 35164 KB Output is correct
26 Correct 5 ms 35416 KB Output is correct
27 Correct 5 ms 35268 KB Output is correct
28 Correct 4 ms 35164 KB Output is correct
29 Correct 4 ms 35164 KB Output is correct
30 Correct 5 ms 35164 KB Output is correct
31 Correct 5 ms 35340 KB Output is correct
32 Correct 6 ms 35164 KB Output is correct
33 Correct 6 ms 35420 KB Output is correct
34 Correct 6 ms 35276 KB Output is correct
35 Correct 7 ms 35252 KB Output is correct
36 Correct 7 ms 35420 KB Output is correct
37 Correct 6 ms 35420 KB Output is correct
38 Correct 7 ms 35416 KB Output is correct
39 Correct 6 ms 35420 KB Output is correct
40 Correct 5 ms 35752 KB Output is correct
41 Correct 5 ms 35932 KB Output is correct
42 Correct 6 ms 35420 KB Output is correct
43 Correct 6 ms 35720 KB Output is correct
44 Correct 6 ms 35676 KB Output is correct
45 Correct 7 ms 35676 KB Output is correct
46 Correct 7 ms 35644 KB Output is correct
47 Correct 6 ms 35420 KB Output is correct
48 Correct 7 ms 35416 KB Output is correct
49 Correct 6 ms 35496 KB Output is correct
50 Correct 7 ms 35676 KB Output is correct
51 Correct 7 ms 35504 KB Output is correct
52 Correct 10 ms 35644 KB Output is correct
53 Correct 7 ms 35608 KB Output is correct
54 Correct 7 ms 35676 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 35160 KB Output is correct
2 Correct 5 ms 35160 KB Output is correct
3 Correct 5 ms 35164 KB Output is correct
4 Correct 5 ms 35164 KB Output is correct
5 Correct 5 ms 35164 KB Output is correct
6 Correct 6 ms 35164 KB Output is correct
7 Correct 5 ms 35328 KB Output is correct
8 Correct 5 ms 35164 KB Output is correct
9 Correct 6 ms 35164 KB Output is correct
10 Correct 5 ms 35164 KB Output is correct
11 Correct 5 ms 35164 KB Output is correct
12 Correct 5 ms 35164 KB Output is correct
13 Correct 4 ms 35164 KB Output is correct
14 Correct 5 ms 35164 KB Output is correct
15 Correct 5 ms 35164 KB Output is correct
16 Correct 6 ms 35160 KB Output is correct
17 Correct 5 ms 35164 KB Output is correct
18 Correct 5 ms 35316 KB Output is correct
19 Correct 6 ms 35232 KB Output is correct
20 Correct 5 ms 35272 KB Output is correct
21 Correct 5 ms 35164 KB Output is correct
22 Correct 5 ms 35264 KB Output is correct
23 Correct 5 ms 35164 KB Output is correct
24 Correct 5 ms 35164 KB Output is correct
25 Correct 5 ms 35164 KB Output is correct
26 Correct 5 ms 35416 KB Output is correct
27 Correct 5 ms 35268 KB Output is correct
28 Correct 4 ms 35164 KB Output is correct
29 Correct 4 ms 35164 KB Output is correct
30 Correct 5 ms 35164 KB Output is correct
31 Correct 5 ms 35340 KB Output is correct
32 Correct 6 ms 35164 KB Output is correct
33 Correct 6 ms 35420 KB Output is correct
34 Correct 6 ms 35276 KB Output is correct
35 Correct 7 ms 35252 KB Output is correct
36 Correct 7 ms 35420 KB Output is correct
37 Correct 6 ms 35420 KB Output is correct
38 Correct 7 ms 35416 KB Output is correct
39 Correct 6 ms 35420 KB Output is correct
40 Correct 5 ms 35752 KB Output is correct
41 Correct 5 ms 35932 KB Output is correct
42 Correct 6 ms 35420 KB Output is correct
43 Correct 6 ms 35720 KB Output is correct
44 Correct 6 ms 35676 KB Output is correct
45 Correct 7 ms 35676 KB Output is correct
46 Correct 7 ms 35644 KB Output is correct
47 Correct 6 ms 35420 KB Output is correct
48 Correct 7 ms 35416 KB Output is correct
49 Correct 6 ms 35496 KB Output is correct
50 Correct 7 ms 35676 KB Output is correct
51 Correct 7 ms 35504 KB Output is correct
52 Correct 10 ms 35644 KB Output is correct
53 Correct 7 ms 35608 KB Output is correct
54 Correct 7 ms 35676 KB Output is correct
55 Correct 15 ms 35932 KB Output is correct
56 Correct 24 ms 37212 KB Output is correct
57 Correct 44 ms 40788 KB Output is correct
58 Correct 54 ms 44008 KB Output is correct
59 Correct 73 ms 43600 KB Output is correct
60 Correct 89 ms 44624 KB Output is correct
61 Correct 120 ms 46060 KB Output is correct
62 Correct 125 ms 49488 KB Output is correct
63 Correct 146 ms 51268 KB Output is correct
64 Correct 168 ms 50532 KB Output is correct
65 Correct 98 ms 76832 KB Output is correct
66 Correct 85 ms 76628 KB Output is correct
67 Correct 117 ms 48464 KB Output is correct
68 Correct 129 ms 65212 KB Output is correct
69 Correct 139 ms 63696 KB Output is correct
70 Correct 147 ms 63828 KB Output is correct
71 Correct 170 ms 57172 KB Output is correct
72 Correct 217 ms 57168 KB Output is correct
73 Correct 182 ms 56660 KB Output is correct
74 Correct 179 ms 56840 KB Output is correct
75 Correct 167 ms 56404 KB Output is correct
76 Correct 173 ms 56660 KB Output is correct
77 Correct 188 ms 56008 KB Output is correct
78 Correct 188 ms 56972 KB Output is correct
79 Correct 241 ms 71572 KB Output is correct