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Submission #671074

# Submission time Handle Problem Language Result Execution time Memory
671074 2022-12-11T22:18:00 Z AdamGS Fireworks (APIO16_fireworks) C++17
100 / 100
 216 ms 70920 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define rep(a, b) for(int a = 0; a < (b); ++a)
#define st first
#define nd second
#define pb push_back
#define all(a) a.begin(), a.end()
const int LIM=3e5+7;
vector<pair<int,ll>>V[LIM];
ll cnt[LIM], n, m, ans;
void DFS1(int x) {
        cnt[x]=1;
        for(auto i : V[x]) {
                DFS1(i.st);
                cnt[x]+=cnt[i.st];
        }
        rep(i, V[x].size()) if(cnt[V[x][i].st]>cnt[V[x][0].st]) swap(V[x][0], V[x][i]);
}
void DFS2(int x, ll k, priority_queue<ll>&q) {
        ans+=k;
        if(x>=n) {
                q.push(0);
                q.push(k);
                q.push(k);
                return;
        }
        DFS2(V[x][0].st, V[x][0].nd, q);
        for(int i=1; i<V[x].size(); ++i) {
                priority_queue<ll>p;
                DFS2(V[x][i].st, V[x][i].nd, p);
                while(!p.empty()) {
                        q.push(p.top());
                        p.pop();
                }
        }
        rep(i, V[x].size()-1) q.pop();
        ll a=q.top(); q.pop();
        ll b=q.top(); q.pop();
        q.push(a+k); q.push(b+k);
}
int main() {
        ios_base::sync_with_stdio(0); cin.tie(0);
        cin >> n >> m;
        rep(i, n+m-1) {
                ll a, b;
                cin >> a >> b; --a;
                V[a].pb({i+1, b});
        }
        DFS1(0);
        priority_queue<ll>Q;
        DFS2(0, 0, Q);
        Q.pop();
        vector<ll>P;
        while(!Q.empty()) {
                P.pb(Q.top());
                Q.pop();
        }
        for(ll i=P.size()-1; i; --i) ans-=i*(P[i-1]-P[i]);
        cout << ans << '\n';
}

Compilation message

fireworks.cpp: In function 'void DFS1(int)':
fireworks.cpp:5:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 | #define rep(a, b) for(int a = 0; a < (b); ++a)
      |                                    ^
fireworks.cpp:19:9: note: in expansion of macro 'rep'
   19 |         rep(i, V[x].size()) if(cnt[V[x][i].st]>cnt[V[x][0].st]) swap(V[x][0], V[x][i]);
      |         ^~~
fireworks.cpp: In function 'void DFS2(int, ll, std::priority_queue<long long int>&)':
fireworks.cpp:30:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |         for(int i=1; i<V[x].size(); ++i) {
      |                      ~^~~~~~~~~~~~
fireworks.cpp:5:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 | #define rep(a, b) for(int a = 0; a < (b); ++a)
      |                                    ^
fireworks.cpp:38:9: note: in expansion of macro 'rep'
   38 |         rep(i, V[x].size()-1) q.pop();
      |         ^~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 ms 7376 KB Output is correct
5 Correct 4 ms 7252 KB Output is correct
6 Correct 4 ms 7368 KB Output is correct
7 Correct 4 ms 7380 KB Output is correct
8 Correct 4 ms 7380 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7380 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7480 KB Output is correct
2 Correct 4 ms 7372 KB Output is correct
3 Correct 4 ms 7252 KB Output is correct
4 Correct 4 ms 7380 KB Output is correct
5 Correct 4 ms 7368 KB Output is correct
6 Correct 4 ms 7380 KB Output is correct
7 Correct 4 ms 7380 KB Output is correct
8 Correct 4 ms 7380 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7372 KB Output is correct
11 Correct 4 ms 7380 KB Output is correct
12 Correct 4 ms 7380 KB Output is correct
13 Correct 4 ms 7368 KB Output is correct
14 Correct 4 ms 7316 KB Output is correct
15 Correct 4 ms 7368 KB Output is correct
16 Correct 4 ms 7308 KB Output is correct
17 Correct 4 ms 7380 KB Output is correct
18 Correct 5 ms 7368 KB Output is correct
19 Correct 5 ms 7380 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 ms 7376 KB Output is correct
5 Correct 4 ms 7252 KB Output is correct
6 Correct 4 ms 7368 KB Output is correct
7 Correct 4 ms 7380 KB Output is correct
8 Correct 4 ms 7380 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7380 KB Output is correct
11 Correct 4 ms 7480 KB Output is correct
12 Correct 4 ms 7372 KB Output is correct
13 Correct 4 ms 7252 KB Output is correct
14 Correct 4 ms 7380 KB Output is correct
15 Correct 4 ms 7368 KB Output is correct
16 Correct 4 ms 7380 KB Output is correct
17 Correct 4 ms 7380 KB Output is correct
18 Correct 4 ms 7380 KB Output is correct
19 Correct 4 ms 7380 KB Output is correct
20 Correct 4 ms 7372 KB Output is correct
21 Correct 4 ms 7380 KB Output is correct
22 Correct 4 ms 7380 KB Output is correct
23 Correct 4 ms 7368 KB Output is correct
24 Correct 4 ms 7316 KB Output is correct
25 Correct 4 ms 7368 KB Output is correct
26 Correct 4 ms 7308 KB Output is correct
27 Correct 4 ms 7380 KB Output is correct
28 Correct 5 ms 7368 KB Output is correct
29 Correct 5 ms 7380 KB Output is correct
30 Correct 4 ms 7380 KB Output is correct
31 Correct 4 ms 7380 KB Output is correct
32 Correct 5 ms 7384 KB Output is correct
33 Correct 4 ms 7508 KB Output is correct
34 Correct 5 ms 7508 KB Output is correct
35 Correct 5 ms 7636 KB Output is correct
36 Correct 6 ms 7636 KB Output is correct
37 Correct 6 ms 7716 KB Output is correct
38 Correct 6 ms 7636 KB Output is correct
39 Correct 6 ms 7640 KB Output is correct
40 Correct 6 ms 8408 KB Output is correct
41 Correct 5 ms 8404 KB Output is correct
42 Correct 5 ms 7636 KB Output is correct
43 Correct 6 ms 8024 KB Output is correct
44 Correct 7 ms 8020 KB Output is correct
45 Correct 7 ms 7980 KB Output is correct
46 Correct 7 ms 7892 KB Output is correct
47 Correct 7 ms 7892 KB Output is correct
48 Correct 6 ms 7772 KB Output is correct
49 Correct 7 ms 7800 KB Output is correct
50 Correct 6 ms 7764 KB Output is correct
51 Correct 6 ms 7780 KB Output is correct
52 Correct 6 ms 7776 KB Output is correct
53 Correct 6 ms 7764 KB Output is correct
54 Correct 7 ms 7892 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 ms 7376 KB Output is correct
5 Correct 4 ms 7252 KB Output is correct
6 Correct 4 ms 7368 KB Output is correct
7 Correct 4 ms 7380 KB Output is correct
8 Correct 4 ms 7380 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7380 KB Output is correct
11 Correct 4 ms 7480 KB Output is correct
12 Correct 4 ms 7372 KB Output is correct
13 Correct 4 ms 7252 KB Output is correct
14 Correct 4 ms 7380 KB Output is correct
15 Correct 4 ms 7368 KB Output is correct
16 Correct 4 ms 7380 KB Output is correct
17 Correct 4 ms 7380 KB Output is correct
18 Correct 4 ms 7380 KB Output is correct
19 Correct 4 ms 7380 KB Output is correct
20 Correct 4 ms 7372 KB Output is correct
21 Correct 4 ms 7380 KB Output is correct
22 Correct 4 ms 7380 KB Output is correct
23 Correct 4 ms 7368 KB Output is correct
24 Correct 4 ms 7316 KB Output is correct
25 Correct 4 ms 7368 KB Output is correct
26 Correct 4 ms 7308 KB Output is correct
27 Correct 4 ms 7380 KB Output is correct
28 Correct 5 ms 7368 KB Output is correct
29 Correct 5 ms 7380 KB Output is correct
30 Correct 4 ms 7380 KB Output is correct
31 Correct 4 ms 7380 KB Output is correct
32 Correct 5 ms 7384 KB Output is correct
33 Correct 4 ms 7508 KB Output is correct
34 Correct 5 ms 7508 KB Output is correct
35 Correct 5 ms 7636 KB Output is correct
36 Correct 6 ms 7636 KB Output is correct
37 Correct 6 ms 7716 KB Output is correct
38 Correct 6 ms 7636 KB Output is correct
39 Correct 6 ms 7640 KB Output is correct
40 Correct 6 ms 8408 KB Output is correct
41 Correct 5 ms 8404 KB Output is correct
42 Correct 5 ms 7636 KB Output is correct
43 Correct 6 ms 8024 KB Output is correct
44 Correct 7 ms 8020 KB Output is correct
45 Correct 7 ms 7980 KB Output is correct
46 Correct 7 ms 7892 KB Output is correct
47 Correct 7 ms 7892 KB Output is correct
48 Correct 6 ms 7772 KB Output is correct
49 Correct 7 ms 7800 KB Output is correct
50 Correct 6 ms 7764 KB Output is correct
51 Correct 6 ms 7780 KB Output is correct
52 Correct 6 ms 7776 KB Output is correct
53 Correct 6 ms 7764 KB Output is correct
54 Correct 7 ms 7892 KB Output is correct
55 Correct 11 ms 8284 KB Output is correct
56 Correct 29 ms 11068 KB Output is correct
57 Correct 50 ms 12872 KB Output is correct
58 Correct 73 ms 15036 KB Output is correct
59 Correct 99 ms 16936 KB Output is correct
60 Correct 123 ms 18920 KB Output is correct
61 Correct 147 ms 21872 KB Output is correct
62 Correct 166 ms 23072 KB Output is correct
63 Correct 201 ms 25512 KB Output is correct
64 Correct 206 ms 26316 KB Output is correct
65 Correct 106 ms 70920 KB Output is correct
66 Correct 109 ms 70840 KB Output is correct
67 Correct 97 ms 24088 KB Output is correct
68 Correct 170 ms 53512 KB Output is correct
69 Correct 200 ms 50236 KB Output is correct
70 Correct 197 ms 50224 KB Output is correct
71 Correct 213 ms 37848 KB Output is correct
72 Correct 213 ms 37808 KB Output is correct
73 Correct 204 ms 36708 KB Output is correct
74 Correct 196 ms 36900 KB Output is correct
75 Correct 196 ms 35976 KB Output is correct
76 Correct 197 ms 36056 KB Output is correct
77 Correct 200 ms 36244 KB Output is correct
78 Correct 216 ms 35912 KB Output is correct
79 Correct 201 ms 37300 KB Output is correct