#include <bits/stdc++.h>
using namespace std;
#define ll long long
const int mxN=3e5;
int n, m, pi, si[mxN];
vector<int> adj[mxN];
ll c[mxN], yi0[mxN], yi1[mxN];
priority_queue<ll> pc[mxN];
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
cin >> n >> m;
for(int i=1; i<n+m; ++i) {
cin >> pi >> c[i], --pi;
adj[pi].push_back(i);
}
for(int i=n+m-1; i>=0; --i) {
if(i>=n) {
yi1[i]=-1;
pc[i].push(0);
pc[i].push(0);
si[i]=i;
} else {
int mj=adj[i][0];
for(int j : adj[i])
if(pc[si[j]].size()<pc[si[j]].size())
mj=j;
si[i]=si[mj];
for(int j : adj[i]) {
yi0[i]+=yi0[j];
yi1[i]+=yi1[j];
if(j==mj)
continue;
while(!pc[si[j]].empty()) {
pc[si[i]].push(pc[si[j]].top());
pc[si[j]].pop();
}
}
}
while(pc[si[i]].size()>-yi1[i]+1)
pc[si[i]].pop();
ll a1=pc[si[i]].top();
pc[si[i]].pop();
ll a2=pc[si[i]].top();
pc[si[i]].pop();
pc[si[i]].push(a1+c[i]);
pc[si[i]].push(a2+c[i]);
yi0[i]+=c[i];
// cout << yi0[i] << " " << yi1[i] << endl;
}
ll ans=yi0[0];
pc[si[0]].pop();
pc[si[0]].push(0);
while(pc[si[0]].size()>1) {
ans+=(yi1[0]+pc[si[0]].size()-2)*pc[si[0]].top();
pc[si[0]].pop();
ans-=(yi1[0]+pc[si[0]].size()-1)*pc[si[0]].top();
}
cout << ans;
}
Compilation message
fireworks.cpp: In function 'int main()':
fireworks.cpp:44:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
while(pc[si[i]].size()>-yi1[i]+1)
~~~~~~~~~~~~~~~~^~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
15 ms |
16888 KB |
Output is correct |
| 2 |
Correct |
17 ms |
16992 KB |
Output is correct |
| 3 |
Correct |
15 ms |
16992 KB |
Output is correct |
| 4 |
Correct |
15 ms |
16992 KB |
Output is correct |
| 5 |
Correct |
18 ms |
16992 KB |
Output is correct |
| 6 |
Correct |
19 ms |
17084 KB |
Output is correct |
| 7 |
Correct |
18 ms |
17084 KB |
Output is correct |
| 8 |
Correct |
16 ms |
17084 KB |
Output is correct |
| 9 |
Correct |
16 ms |
17160 KB |
Output is correct |
| 10 |
Correct |
15 ms |
17160 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 2 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 3 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 4 |
Correct |
14 ms |
17160 KB |
Output is correct |
| 5 |
Correct |
16 ms |
17160 KB |
Output is correct |
| 6 |
Correct |
16 ms |
17160 KB |
Output is correct |
| 7 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 8 |
Correct |
16 ms |
17160 KB |
Output is correct |
| 9 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 10 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 11 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 12 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 13 |
Correct |
17 ms |
17160 KB |
Output is correct |
| 14 |
Correct |
17 ms |
17160 KB |
Output is correct |
| 15 |
Correct |
17 ms |
17160 KB |
Output is correct |
| 16 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 17 |
Correct |
17 ms |
17160 KB |
Output is correct |
| 18 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 19 |
Correct |
15 ms |
17160 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
15 ms |
16888 KB |
Output is correct |
| 2 |
Correct |
17 ms |
16992 KB |
Output is correct |
| 3 |
Correct |
15 ms |
16992 KB |
Output is correct |
| 4 |
Correct |
15 ms |
16992 KB |
Output is correct |
| 5 |
Correct |
18 ms |
16992 KB |
Output is correct |
| 6 |
Correct |
19 ms |
17084 KB |
Output is correct |
| 7 |
Correct |
18 ms |
17084 KB |
Output is correct |
| 8 |
Correct |
16 ms |
17084 KB |
Output is correct |
| 9 |
Correct |
16 ms |
17160 KB |
Output is correct |
| 10 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 11 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 12 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 13 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 14 |
Correct |
14 ms |
17160 KB |
Output is correct |
| 15 |
Correct |
16 ms |
17160 KB |
Output is correct |
| 16 |
Correct |
16 ms |
17160 KB |
Output is correct |
| 17 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 18 |
Correct |
16 ms |
17160 KB |
Output is correct |
| 19 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 20 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 21 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 22 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 23 |
Correct |
17 ms |
17160 KB |
Output is correct |
| 24 |
Correct |
17 ms |
17160 KB |
Output is correct |
| 25 |
Correct |
17 ms |
17160 KB |
Output is correct |
| 26 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 27 |
Correct |
17 ms |
17160 KB |
Output is correct |
| 28 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 29 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 30 |
Correct |
16 ms |
17160 KB |
Output is correct |
| 31 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 32 |
Correct |
16 ms |
17160 KB |
Output is correct |
| 33 |
Correct |
18 ms |
17276 KB |
Output is correct |
| 34 |
Correct |
17 ms |
17328 KB |
Output is correct |
| 35 |
Correct |
17 ms |
17328 KB |
Output is correct |
| 36 |
Correct |
19 ms |
17404 KB |
Output is correct |
| 37 |
Correct |
19 ms |
17404 KB |
Output is correct |
| 38 |
Correct |
18 ms |
17408 KB |
Output is correct |
| 39 |
Correct |
18 ms |
17408 KB |
Output is correct |
| 40 |
Correct |
17 ms |
17408 KB |
Output is correct |
| 41 |
Correct |
16 ms |
17408 KB |
Output is correct |
| 42 |
Correct |
19 ms |
17408 KB |
Output is correct |
| 43 |
Correct |
21 ms |
17520 KB |
Output is correct |
| 44 |
Correct |
18 ms |
17520 KB |
Output is correct |
| 45 |
Correct |
21 ms |
17520 KB |
Output is correct |
| 46 |
Correct |
23 ms |
17648 KB |
Output is correct |
| 47 |
Correct |
22 ms |
17648 KB |
Output is correct |
| 48 |
Correct |
19 ms |
17648 KB |
Output is correct |
| 49 |
Correct |
19 ms |
17648 KB |
Output is correct |
| 50 |
Correct |
23 ms |
17648 KB |
Output is correct |
| 51 |
Correct |
18 ms |
17648 KB |
Output is correct |
| 52 |
Correct |
20 ms |
17648 KB |
Output is correct |
| 53 |
Correct |
22 ms |
17648 KB |
Output is correct |
| 54 |
Correct |
22 ms |
17648 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
15 ms |
16888 KB |
Output is correct |
| 2 |
Correct |
17 ms |
16992 KB |
Output is correct |
| 3 |
Correct |
15 ms |
16992 KB |
Output is correct |
| 4 |
Correct |
15 ms |
16992 KB |
Output is correct |
| 5 |
Correct |
18 ms |
16992 KB |
Output is correct |
| 6 |
Correct |
19 ms |
17084 KB |
Output is correct |
| 7 |
Correct |
18 ms |
17084 KB |
Output is correct |
| 8 |
Correct |
16 ms |
17084 KB |
Output is correct |
| 9 |
Correct |
16 ms |
17160 KB |
Output is correct |
| 10 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 11 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 12 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 13 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 14 |
Correct |
14 ms |
17160 KB |
Output is correct |
| 15 |
Correct |
16 ms |
17160 KB |
Output is correct |
| 16 |
Correct |
16 ms |
17160 KB |
Output is correct |
| 17 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 18 |
Correct |
16 ms |
17160 KB |
Output is correct |
| 19 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 20 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 21 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 22 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 23 |
Correct |
17 ms |
17160 KB |
Output is correct |
| 24 |
Correct |
17 ms |
17160 KB |
Output is correct |
| 25 |
Correct |
17 ms |
17160 KB |
Output is correct |
| 26 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 27 |
Correct |
17 ms |
17160 KB |
Output is correct |
| 28 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 29 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 30 |
Correct |
16 ms |
17160 KB |
Output is correct |
| 31 |
Correct |
15 ms |
17160 KB |
Output is correct |
| 32 |
Correct |
16 ms |
17160 KB |
Output is correct |
| 33 |
Correct |
18 ms |
17276 KB |
Output is correct |
| 34 |
Correct |
17 ms |
17328 KB |
Output is correct |
| 35 |
Correct |
17 ms |
17328 KB |
Output is correct |
| 36 |
Correct |
19 ms |
17404 KB |
Output is correct |
| 37 |
Correct |
19 ms |
17404 KB |
Output is correct |
| 38 |
Correct |
18 ms |
17408 KB |
Output is correct |
| 39 |
Correct |
18 ms |
17408 KB |
Output is correct |
| 40 |
Correct |
17 ms |
17408 KB |
Output is correct |
| 41 |
Correct |
16 ms |
17408 KB |
Output is correct |
| 42 |
Correct |
19 ms |
17408 KB |
Output is correct |
| 43 |
Correct |
21 ms |
17520 KB |
Output is correct |
| 44 |
Correct |
18 ms |
17520 KB |
Output is correct |
| 45 |
Correct |
21 ms |
17520 KB |
Output is correct |
| 46 |
Correct |
23 ms |
17648 KB |
Output is correct |
| 47 |
Correct |
22 ms |
17648 KB |
Output is correct |
| 48 |
Correct |
19 ms |
17648 KB |
Output is correct |
| 49 |
Correct |
19 ms |
17648 KB |
Output is correct |
| 50 |
Correct |
23 ms |
17648 KB |
Output is correct |
| 51 |
Correct |
18 ms |
17648 KB |
Output is correct |
| 52 |
Correct |
20 ms |
17648 KB |
Output is correct |
| 53 |
Correct |
22 ms |
17648 KB |
Output is correct |
| 54 |
Correct |
22 ms |
17648 KB |
Output is correct |
| 55 |
Correct |
23 ms |
18172 KB |
Output is correct |
| 56 |
Correct |
63 ms |
21244 KB |
Output is correct |
| 57 |
Correct |
120 ms |
24064 KB |
Output is correct |
| 58 |
Correct |
127 ms |
26128 KB |
Output is correct |
| 59 |
Correct |
199 ms |
28896 KB |
Output is correct |
| 60 |
Correct |
295 ms |
31720 KB |
Output is correct |
| 61 |
Correct |
263 ms |
34356 KB |
Output is correct |
| 62 |
Correct |
343 ms |
35964 KB |
Output is correct |
| 63 |
Correct |
324 ms |
39484 KB |
Output is correct |
| 64 |
Correct |
327 ms |
40408 KB |
Output is correct |
| 65 |
Correct |
126 ms |
40408 KB |
Output is correct |
| 66 |
Correct |
141 ms |
40408 KB |
Output is correct |
| 67 |
Correct |
171 ms |
40408 KB |
Output is correct |
| 68 |
Correct |
244 ms |
40408 KB |
Output is correct |
| 69 |
Correct |
265 ms |
40408 KB |
Output is correct |
| 70 |
Correct |
263 ms |
40408 KB |
Output is correct |
| 71 |
Correct |
381 ms |
50092 KB |
Output is correct |
| 72 |
Correct |
321 ms |
50168 KB |
Output is correct |
| 73 |
Correct |
263 ms |
50168 KB |
Output is correct |
| 74 |
Correct |
252 ms |
50168 KB |
Output is correct |
| 75 |
Correct |
266 ms |
50168 KB |
Output is correct |
| 76 |
Correct |
282 ms |
50168 KB |
Output is correct |
| 77 |
Correct |
293 ms |
50168 KB |
Output is correct |
| 78 |
Correct |
279 ms |
50168 KB |
Output is correct |
| 79 |
Correct |
273 ms |
50168 KB |
Output is correct |
