oj.uz

Submission #47801

# Submission time Handle Problem Language Result Execution time Memory
47801 2018-05-07T10:25:43 Z square1001 Fireworks (APIO16_fireworks) C++14
26 / 100
 20 ms 21876 KB 
#include <set>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;
int N, M, p[300009], c[300009], id[300009]; vector<int> g[300009]; multiset<long long> v[300009];
int main() {
	cin.tie(0);
	ios_base::sync_with_stdio(false);
	cin >> N >> M;
	long long sum = 0;
	for (int i = 1; i < N + M; i++) {
		cin >> p[i] >> c[i];
		g[--p[i]].push_back(i);
		sum += c[i];
		if (i >= N) {
			v[i - N].insert(c[i]);
			v[i - N].insert(c[i]);
			id[i] = i - N;
		}
	}
	for (int i = N - 1; i >= 0; i--) {
		int mx = 0;
		for (int j : g[i]) {
			if (mx < v[id[j]].size()) {
				mx = v[id[j]].size();
				id[i] = id[j];
			}
		}
		for (int j : g[i]) {
			if (id[j] != id[i]) {
				int sz = v[id[i]].size();
				v[id[i]].insert(v[id[j]].begin(), v[id[j]].end());
			}
		}
		multiset<long long>::iterator it = --v[id[i]].end();
		for (int j = 1; j < g[i].size(); j++) {
			it = --v[id[i]].erase(it);
		}
		int va = *it; it = --v[id[i]].erase(it);
		int vb = *it; it = --v[id[i]].erase(it);
		v[id[i]].insert(va + c[i]);
		v[id[i]].insert(vb + c[i]);
	}
	vector<long long> res(v[id[0]].begin(), v[id[0]].end());
	for (int i = 0; i < res.size(); i++) {
		sum -= (res[i] - (i == 0 ? 0 : res[i - 1])) * (res.size() - i - 1);
	}
	cout << sum << '\n';
	return 0;
}

Compilation message

fireworks.cpp: In function 'int main()':
fireworks.cpp:25:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    if (mx < v[id[j]].size()) {
        ~~~^~~~~~~~~~~~~~~~~
fireworks.cpp:32:9: warning: unused variable 'sz' [-Wunused-variable]
     int sz = v[id[i]].size();
         ^~
fireworks.cpp:37:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int j = 1; j < g[i].size(); j++) {
                   ~~^~~~~~~~~~~~~
fireworks.cpp:46:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < res.size(); i++) {
                  ~~^~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 21496 KB Output is correct
2 Correct 18 ms 21612 KB Output is correct
3 Correct 19 ms 21612 KB Output is correct
4 Correct 19 ms 21612 KB Output is correct
5 Correct 18 ms 21644 KB Output is correct
6 Correct 19 ms 21644 KB Output is correct
7 Correct 18 ms 21772 KB Output is correct
8 Correct 18 ms 21772 KB Output is correct
9 Correct 19 ms 21772 KB Output is correct
10 Correct 18 ms 21772 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 21772 KB Output is correct
2 Correct 19 ms 21772 KB Output is correct
3 Correct 19 ms 21772 KB Output is correct
4 Correct 19 ms 21772 KB Output is correct
5 Correct 19 ms 21772 KB Output is correct
6 Correct 19 ms 21876 KB Output is correct
7 Correct 18 ms 21876 KB Output is correct
8 Correct 18 ms 21876 KB Output is correct
9 Correct 20 ms 21876 KB Output is correct
10 Correct 19 ms 21876 KB Output is correct
11 Correct 19 ms 21876 KB Output is correct
12 Correct 19 ms 21876 KB Output is correct
13 Correct 18 ms 21876 KB Output is correct
14 Correct 19 ms 21876 KB Output is correct
15 Correct 19 ms 21876 KB Output is correct
16 Correct 19 ms 21876 KB Output is correct
17 Correct 19 ms 21876 KB Output is correct
18 Correct 19 ms 21876 KB Output is correct
19 Correct 19 ms 21876 KB Output is correct

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 21496 KB Output is correct
2 Correct 18 ms 21612 KB Output is correct
3 Correct 19 ms 21612 KB Output is correct
4 Correct 19 ms 21612 KB Output is correct
5 Correct 18 ms 21644 KB Output is correct
6 Correct 19 ms 21644 KB Output is correct
7 Correct 18 ms 21772 KB Output is correct
8 Correct 18 ms 21772 KB Output is correct
9 Correct 19 ms 21772 KB Output is correct
10 Correct 18 ms 21772 KB Output is correct
11 Correct 18 ms 21772 KB Output is correct
12 Correct 19 ms 21772 KB Output is correct
13 Correct 19 ms 21772 KB Output is correct
14 Correct 19 ms 21772 KB Output is correct
15 Correct 19 ms 21772 KB Output is correct
16 Correct 19 ms 21876 KB Output is correct
17 Correct 18 ms 21876 KB Output is correct
18 Correct 18 ms 21876 KB Output is correct
19 Correct 20 ms 21876 KB Output is correct
20 Correct 19 ms 21876 KB Output is correct
21 Correct 19 ms 21876 KB Output is correct
22 Correct 19 ms 21876 KB Output is correct
23 Correct 18 ms 21876 KB Output is correct
24 Correct 19 ms 21876 KB Output is correct
25 Correct 19 ms 21876 KB Output is correct
26 Correct 19 ms 21876 KB Output is correct
27 Correct 19 ms 21876 KB Output is correct
28 Correct 19 ms 21876 KB Output is correct
29 Correct 19 ms 21876 KB Output is correct
30 Incorrect 20 ms 21876 KB Output isn't correct
31 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 21496 KB Output is correct
2 Correct 18 ms 21612 KB Output is correct
3 Correct 19 ms 21612 KB Output is correct
4 Correct 19 ms 21612 KB Output is correct
5 Correct 18 ms 21644 KB Output is correct
6 Correct 19 ms 21644 KB Output is correct
7 Correct 18 ms 21772 KB Output is correct
8 Correct 18 ms 21772 KB Output is correct
9 Correct 19 ms 21772 KB Output is correct
10 Correct 18 ms 21772 KB Output is correct
11 Correct 18 ms 21772 KB Output is correct
12 Correct 19 ms 21772 KB Output is correct
13 Correct 19 ms 21772 KB Output is correct
14 Correct 19 ms 21772 KB Output is correct
15 Correct 19 ms 21772 KB Output is correct
16 Correct 19 ms 21876 KB Output is correct
17 Correct 18 ms 21876 KB Output is correct
18 Correct 18 ms 21876 KB Output is correct
19 Correct 20 ms 21876 KB Output is correct
20 Correct 19 ms 21876 KB Output is correct
21 Correct 19 ms 21876 KB Output is correct
22 Correct 19 ms 21876 KB Output is correct
23 Correct 18 ms 21876 KB Output is correct
24 Correct 19 ms 21876 KB Output is correct
25 Correct 19 ms 21876 KB Output is correct
26 Correct 19 ms 21876 KB Output is correct
27 Correct 19 ms 21876 KB Output is correct
28 Correct 19 ms 21876 KB Output is correct
29 Correct 19 ms 21876 KB Output is correct
30 Incorrect 20 ms 21876 KB Output isn't correct
31 Halted 0 ms 0 KB -