oj.uz

Submission #198628

# Submission time Handle Problem Language Result Execution time Memory
198628 2020-01-27T02:10:48 Z dennisstar Fireworks (APIO16_fireworks) C++17
100 / 100
 351 ms 68740 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
#define ryan bear
#define sq(X) ((X)*(X))
#define em emplace
#define eb emplace_back
#define all(V) (V).begin(), (V).end()
#define unq(V) (V).erase(unique(all(V)), (V).end())
using namespace std;
typedef long long ll;
typedef vector<ll> vlm;
typedef vector<int> vim;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;

int N, M;
vim adj[300010]; ll C[300010], D[300010];
priority_queue<ll> P[300010];

void Merge(int x, int y) {
	if (P[x].size()<P[y].size()) swap(P[x], P[y]);
	while (!P[y].empty()) { P[x].push(P[y].top()); P[y].pop(); }
}

void dfs(int now) {
	D[now]=C[now];
	if (now>N) {
		P[now].em(C[now]); P[now].em(C[now]);
		return ;
	}
	for (auto &i:adj[now]) {
		dfs(i); D[now]+=D[i];
		Merge(now, i);
	}
	for (int i=1; i<adj[now].size(); i++) P[now].pop();
	ll x = P[now].top(); P[now].pop();
	ll y = P[now].top(); P[now].pop();
	P[now].em(x+C[now]); P[now].em(y+C[now]);
}

int main() {
	scanf("%d %d", &N, &M);
	for (int i=2; i<=N+M; i++) {
		int P; scanf("%d %lld", &P, &C[i]);
		adj[P].eb(i);
	}
	dfs(1); P[1].em(0);
	ll ans=D[1]; ll x=P[1].top(); P[1].pop();
	for (int i=0; !P[1].empty(); P[1].pop(), i++) {
		ans-=i*(x-P[1].top()); x=P[1].top();
	}
	printf("%lld\n", ans);
	return 0;
}

Compilation message

fireworks.cpp: In function 'void dfs(int)':
fireworks.cpp:36:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i=1; i<adj[now].size(); i++) P[now].pop();
                ~^~~~~~~~~~~~~~~~
fireworks.cpp: In function 'int main()':
fireworks.cpp:43:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &N, &M);
  ~~~~~^~~~~~~~~~~~~~~~~
fireworks.cpp:45:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int P; scanf("%d %lld", &P, &C[i]);
          ~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 16764 KB Output is correct
2 Correct 15 ms 16760 KB Output is correct
3 Correct 15 ms 16760 KB Output is correct
4 Correct 15 ms 16760 KB Output is correct
5 Correct 16 ms 16760 KB Output is correct
6 Correct 16 ms 16760 KB Output is correct
7 Correct 16 ms 16760 KB Output is correct
8 Correct 15 ms 16760 KB Output is correct
9 Correct 17 ms 16940 KB Output is correct
10 Correct 16 ms 16760 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 16888 KB Output is correct
2 Correct 16 ms 16760 KB Output is correct
3 Correct 18 ms 16888 KB Output is correct
4 Correct 15 ms 16760 KB Output is correct
5 Correct 16 ms 16760 KB Output is correct
6 Correct 16 ms 16760 KB Output is correct
7 Correct 15 ms 16760 KB Output is correct
8 Correct 16 ms 16760 KB Output is correct
9 Correct 16 ms 16760 KB Output is correct
10 Correct 18 ms 16760 KB Output is correct
11 Correct 16 ms 16760 KB Output is correct
12 Correct 16 ms 16760 KB Output is correct
13 Correct 15 ms 16760 KB Output is correct
14 Correct 15 ms 16760 KB Output is correct
15 Correct 15 ms 16760 KB Output is correct
16 Correct 17 ms 16760 KB Output is correct
17 Correct 15 ms 16760 KB Output is correct
18 Correct 15 ms 16760 KB Output is correct
19 Correct 16 ms 16764 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 16764 KB Output is correct
2 Correct 15 ms 16760 KB Output is correct
3 Correct 15 ms 16760 KB Output is correct
4 Correct 15 ms 16760 KB Output is correct
5 Correct 16 ms 16760 KB Output is correct
6 Correct 16 ms 16760 KB Output is correct
7 Correct 16 ms 16760 KB Output is correct
8 Correct 15 ms 16760 KB Output is correct
9 Correct 17 ms 16940 KB Output is correct
10 Correct 16 ms 16760 KB Output is correct
11 Correct 16 ms 16888 KB Output is correct
12 Correct 16 ms 16760 KB Output is correct
13 Correct 18 ms 16888 KB Output is correct
14 Correct 15 ms 16760 KB Output is correct
15 Correct 16 ms 16760 KB Output is correct
16 Correct 16 ms 16760 KB Output is correct
17 Correct 15 ms 16760 KB Output is correct
18 Correct 16 ms 16760 KB Output is correct
19 Correct 16 ms 16760 KB Output is correct
20 Correct 18 ms 16760 KB Output is correct
21 Correct 16 ms 16760 KB Output is correct
22 Correct 16 ms 16760 KB Output is correct
23 Correct 15 ms 16760 KB Output is correct
24 Correct 15 ms 16760 KB Output is correct
25 Correct 15 ms 16760 KB Output is correct
26 Correct 17 ms 16760 KB Output is correct
27 Correct 15 ms 16760 KB Output is correct
28 Correct 15 ms 16760 KB Output is correct
29 Correct 16 ms 16764 KB Output is correct
30 Correct 15 ms 16760 KB Output is correct
31 Correct 16 ms 16888 KB Output is correct
32 Correct 16 ms 16888 KB Output is correct
33 Correct 17 ms 17016 KB Output is correct
34 Correct 17 ms 17016 KB Output is correct
35 Correct 19 ms 17016 KB Output is correct
36 Correct 19 ms 17144 KB Output is correct
37 Correct 21 ms 17144 KB Output is correct
38 Correct 18 ms 17144 KB Output is correct
39 Correct 20 ms 17144 KB Output is correct
40 Correct 18 ms 17656 KB Output is correct
41 Correct 19 ms 17660 KB Output is correct
42 Correct 17 ms 17020 KB Output is correct
43 Correct 20 ms 17400 KB Output is correct
44 Correct 20 ms 17400 KB Output is correct
45 Correct 19 ms 17272 KB Output is correct
46 Correct 19 ms 17272 KB Output is correct
47 Correct 19 ms 17272 KB Output is correct
48 Correct 21 ms 17144 KB Output is correct
49 Correct 18 ms 17144 KB Output is correct
50 Correct 18 ms 17144 KB Output is correct
51 Correct 18 ms 17016 KB Output is correct
52 Correct 20 ms 17144 KB Output is correct
53 Correct 20 ms 17144 KB Output is correct
54 Correct 19 ms 17144 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 16764 KB Output is correct
2 Correct 15 ms 16760 KB Output is correct
3 Correct 15 ms 16760 KB Output is correct
4 Correct 15 ms 16760 KB Output is correct
5 Correct 16 ms 16760 KB Output is correct
6 Correct 16 ms 16760 KB Output is correct
7 Correct 16 ms 16760 KB Output is correct
8 Correct 15 ms 16760 KB Output is correct
9 Correct 17 ms 16940 KB Output is correct
10 Correct 16 ms 16760 KB Output is correct
11 Correct 16 ms 16888 KB Output is correct
12 Correct 16 ms 16760 KB Output is correct
13 Correct 18 ms 16888 KB Output is correct
14 Correct 15 ms 16760 KB Output is correct
15 Correct 16 ms 16760 KB Output is correct
16 Correct 16 ms 16760 KB Output is correct
17 Correct 15 ms 16760 KB Output is correct
18 Correct 16 ms 16760 KB Output is correct
19 Correct 16 ms 16760 KB Output is correct
20 Correct 18 ms 16760 KB Output is correct
21 Correct 16 ms 16760 KB Output is correct
22 Correct 16 ms 16760 KB Output is correct
23 Correct 15 ms 16760 KB Output is correct
24 Correct 15 ms 16760 KB Output is correct
25 Correct 15 ms 16760 KB Output is correct
26 Correct 17 ms 16760 KB Output is correct
27 Correct 15 ms 16760 KB Output is correct
28 Correct 15 ms 16760 KB Output is correct
29 Correct 16 ms 16764 KB Output is correct
30 Correct 15 ms 16760 KB Output is correct
31 Correct 16 ms 16888 KB Output is correct
32 Correct 16 ms 16888 KB Output is correct
33 Correct 17 ms 17016 KB Output is correct
34 Correct 17 ms 17016 KB Output is correct
35 Correct 19 ms 17016 KB Output is correct
36 Correct 19 ms 17144 KB Output is correct
37 Correct 21 ms 17144 KB Output is correct
38 Correct 18 ms 17144 KB Output is correct
39 Correct 20 ms 17144 KB Output is correct
40 Correct 18 ms 17656 KB Output is correct
41 Correct 19 ms 17660 KB Output is correct
42 Correct 17 ms 17020 KB Output is correct
43 Correct 20 ms 17400 KB Output is correct
44 Correct 20 ms 17400 KB Output is correct
45 Correct 19 ms 17272 KB Output is correct
46 Correct 19 ms 17272 KB Output is correct
47 Correct 19 ms 17272 KB Output is correct
48 Correct 21 ms 17144 KB Output is correct
49 Correct 18 ms 17144 KB Output is correct
50 Correct 18 ms 17144 KB Output is correct
51 Correct 18 ms 17016 KB Output is correct
52 Correct 20 ms 17144 KB Output is correct
53 Correct 20 ms 17144 KB Output is correct
54 Correct 19 ms 17144 KB Output is correct
55 Correct 26 ms 17784 KB Output is correct
56 Correct 61 ms 20600 KB Output is correct
57 Correct 103 ms 23284 KB Output is correct
58 Correct 145 ms 25328 KB Output is correct
59 Correct 171 ms 28016 KB Output is correct
60 Correct 217 ms 30836 KB Output is correct
61 Correct 250 ms 33136 KB Output is correct
62 Correct 287 ms 34544 KB Output is correct
63 Correct 330 ms 37868 KB Output is correct
64 Correct 351 ms 38900 KB Output is correct
65 Correct 157 ms 68600 KB Output is correct
66 Correct 156 ms 68740 KB Output is correct
67 Correct 173 ms 35832 KB Output is correct
68 Correct 237 ms 53548 KB Output is correct
69 Correct 289 ms 50664 KB Output is correct
70 Correct 299 ms 50544 KB Output is correct
71 Correct 291 ms 48348 KB Output is correct
72 Correct 291 ms 48612 KB Output is correct
73 Correct 256 ms 44740 KB Output is correct
74 Correct 260 ms 44900 KB Output is correct
75 Correct 255 ms 43752 KB Output is correct
76 Correct 261 ms 43744 KB Output is correct
77 Correct 262 ms 43240 KB Output is correct
78 Correct 266 ms 41672 KB Output is correct
79 Correct 252 ms 42336 KB Output is correct