답안 #266971

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
266971	2020-08-15T14:39:07 Z	shayan_p	Fireworks (APIO16_fireworks)	C++14	55 / 100	2000 ms	32408 KB

fireworks

// And you curse yourself for things you never done

#include<bits/stdc++.h>

#define F first
#define S second
#define PB push_back
#define sz(s) int((s).size())
#define bit(n,k) (((n)>>(k))&1)

using namespace std;

typedef long long ll;
typedef pair<int,int> pii;

const int maxn = 3e5 + 10, mod = 1e9 + 7;
const ll inf = 1e18 + 10;

vector<pii> v[maxn];
int n, m;

vector<ll> peb[maxn];
int infs[maxn];

void dfs(int u, int S = 0){
    if(u >= n){
	peb[u].PB(S);
	peb[u].PB(S);
	return;
    }
    for(auto [y, x] : v[u]){
	dfs(y, x);
	infs[u]+= infs[y];
	if(sz(peb[u]) < sz(peb[y]))
	    swap(peb[u], peb[y]);
	for(ll x : peb[y])
	    peb[u].PB(x);
    }
    sort(peb[u].begin(), peb[u].end());
    int N = sz(peb[u]) + infs[u];
    assert(sz(peb[u]) >= (N/2)+1);
    ll L = peb[u][(N/2)-1], R = peb[u][(N/2)];
    infs[u]+= sz(peb[u]) - (N/2) - 1;
    peb[u].resize((N/2) + 1);
    peb[u].pop_back(), peb[u].pop_back();
    peb[u].PB(L + S);
    peb[u].PB(R + S);
}

int main(){
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie();

    ll sm = 0;
    
    cin >> n >> m;
    for(int i = 1; i < n+m; i++){
	int a, b;
	cin >> a >> b;
	v[--a].PB({i, b});
	sm+= b;
    }
    dfs(0);
    sort(peb[0].begin(), peb[0].end());
    int N = sz(peb[0]) + infs[0];
    ll bst = peb[0][(N/2)-1];
    ll df = 0;
    for(ll x : peb[0]){
	df+= abs(x - bst);
	df-= x;
    }
    df+= -bst * infs[0];
    ll ans = df + sm *2;
    return cout << ans/2 << endl, 0;
}

Compilation message

fireworks.cpp: In function 'void dfs(int, int)':
fireworks.cpp:31:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   31 |     for(auto [y, x] : v[u]){
      |              ^

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	14464 KB	Output is correct
2	Correct	9 ms	14464 KB	Output is correct
3	Correct	11 ms	14464 KB	Output is correct
4	Correct	10 ms	14464 KB	Output is correct
5	Correct	13 ms	14464 KB	Output is correct
6	Correct	10 ms	14464 KB	Output is correct
7	Correct	13 ms	14464 KB	Output is correct
8	Correct	13 ms	14464 KB	Output is correct
9	Correct	14 ms	14464 KB	Output is correct
10	Correct	12 ms	14464 KB	Output is correct

Subtask #2
19.0 / 19.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	14464 KB	Output is correct
2	Correct	12 ms	14464 KB	Output is correct
3	Correct	12 ms	14464 KB	Output is correct
4	Correct	11 ms	14464 KB	Output is correct
5	Correct	11 ms	14464 KB	Output is correct
6	Correct	12 ms	14464 KB	Output is correct
7	Correct	12 ms	14464 KB	Output is correct
8	Correct	12 ms	14464 KB	Output is correct
9	Correct	11 ms	14464 KB	Output is correct
10	Correct	12 ms	14464 KB	Output is correct
11	Correct	10 ms	14464 KB	Output is correct
12	Correct	15 ms	14464 KB	Output is correct
13	Correct	11 ms	14464 KB	Output is correct
14	Correct	16 ms	14464 KB	Output is correct
15	Correct	10 ms	14464 KB	Output is correct
16	Correct	11 ms	14464 KB	Output is correct
17	Correct	10 ms	14464 KB	Output is correct
18	Correct	10 ms	14496 KB	Output is correct
19	Correct	13 ms	14464 KB	Output is correct

Subtask #3
29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	14464 KB	Output is correct
2	Correct	9 ms	14464 KB	Output is correct
3	Correct	11 ms	14464 KB	Output is correct
4	Correct	10 ms	14464 KB	Output is correct
5	Correct	13 ms	14464 KB	Output is correct
6	Correct	10 ms	14464 KB	Output is correct
7	Correct	13 ms	14464 KB	Output is correct
8	Correct	13 ms	14464 KB	Output is correct
9	Correct	14 ms	14464 KB	Output is correct
10	Correct	12 ms	14464 KB	Output is correct
11	Correct	11 ms	14464 KB	Output is correct
12	Correct	12 ms	14464 KB	Output is correct
13	Correct	12 ms	14464 KB	Output is correct
14	Correct	11 ms	14464 KB	Output is correct
15	Correct	11 ms	14464 KB	Output is correct
16	Correct	12 ms	14464 KB	Output is correct
17	Correct	12 ms	14464 KB	Output is correct
18	Correct	12 ms	14464 KB	Output is correct
19	Correct	11 ms	14464 KB	Output is correct
20	Correct	12 ms	14464 KB	Output is correct
21	Correct	10 ms	14464 KB	Output is correct
22	Correct	15 ms	14464 KB	Output is correct
23	Correct	11 ms	14464 KB	Output is correct
24	Correct	16 ms	14464 KB	Output is correct
25	Correct	10 ms	14464 KB	Output is correct
26	Correct	11 ms	14464 KB	Output is correct
27	Correct	10 ms	14464 KB	Output is correct
28	Correct	10 ms	14496 KB	Output is correct
29	Correct	13 ms	14464 KB	Output is correct
30	Correct	12 ms	14464 KB	Output is correct
31	Correct	13 ms	14464 KB	Output is correct
32	Correct	12 ms	14464 KB	Output is correct
33	Correct	14 ms	14592 KB	Output is correct
34	Correct	12 ms	14592 KB	Output is correct
35	Correct	13 ms	14556 KB	Output is correct
36	Correct	13 ms	14592 KB	Output is correct
37	Correct	15 ms	14720 KB	Output is correct
38	Correct	19 ms	14720 KB	Output is correct
39	Correct	16 ms	14720 KB	Output is correct
40	Correct	14 ms	15360 KB	Output is correct
41	Correct	11 ms	15360 KB	Output is correct
42	Correct	13 ms	14592 KB	Output is correct
43	Correct	86 ms	15096 KB	Output is correct
44	Correct	72 ms	14848 KB	Output is correct
45	Correct	68 ms	14848 KB	Output is correct
46	Correct	13 ms	14848 KB	Output is correct
47	Correct	12 ms	14848 KB	Output is correct
48	Correct	12 ms	14720 KB	Output is correct
49	Correct	13 ms	14720 KB	Output is correct
50	Correct	11 ms	14592 KB	Output is correct
51	Correct	11 ms	14592 KB	Output is correct
52	Correct	14 ms	14720 KB	Output is correct
53	Correct	12 ms	14720 KB	Output is correct
54	Correct	14 ms	14720 KB	Output is correct

Subtask #4
0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	14464 KB	Output is correct
2	Correct	9 ms	14464 KB	Output is correct
3	Correct	11 ms	14464 KB	Output is correct
4	Correct	10 ms	14464 KB	Output is correct
5	Correct	13 ms	14464 KB	Output is correct
6	Correct	10 ms	14464 KB	Output is correct
7	Correct	13 ms	14464 KB	Output is correct
8	Correct	13 ms	14464 KB	Output is correct
9	Correct	14 ms	14464 KB	Output is correct
10	Correct	12 ms	14464 KB	Output is correct
11	Correct	11 ms	14464 KB	Output is correct
12	Correct	12 ms	14464 KB	Output is correct
13	Correct	12 ms	14464 KB	Output is correct
14	Correct	11 ms	14464 KB	Output is correct
15	Correct	11 ms	14464 KB	Output is correct
16	Correct	12 ms	14464 KB	Output is correct
17	Correct	12 ms	14464 KB	Output is correct
18	Correct	12 ms	14464 KB	Output is correct
19	Correct	11 ms	14464 KB	Output is correct
20	Correct	12 ms	14464 KB	Output is correct
21	Correct	10 ms	14464 KB	Output is correct
22	Correct	15 ms	14464 KB	Output is correct
23	Correct	11 ms	14464 KB	Output is correct
24	Correct	16 ms	14464 KB	Output is correct
25	Correct	10 ms	14464 KB	Output is correct
26	Correct	11 ms	14464 KB	Output is correct
27	Correct	10 ms	14464 KB	Output is correct
28	Correct	10 ms	14496 KB	Output is correct
29	Correct	13 ms	14464 KB	Output is correct
30	Correct	12 ms	14464 KB	Output is correct
31	Correct	13 ms	14464 KB	Output is correct
32	Correct	12 ms	14464 KB	Output is correct
33	Correct	14 ms	14592 KB	Output is correct
34	Correct	12 ms	14592 KB	Output is correct
35	Correct	13 ms	14556 KB	Output is correct
36	Correct	13 ms	14592 KB	Output is correct
37	Correct	15 ms	14720 KB	Output is correct
38	Correct	19 ms	14720 KB	Output is correct
39	Correct	16 ms	14720 KB	Output is correct
40	Correct	14 ms	15360 KB	Output is correct
41	Correct	11 ms	15360 KB	Output is correct
42	Correct	13 ms	14592 KB	Output is correct
43	Correct	86 ms	15096 KB	Output is correct
44	Correct	72 ms	14848 KB	Output is correct
45	Correct	68 ms	14848 KB	Output is correct
46	Correct	13 ms	14848 KB	Output is correct
47	Correct	12 ms	14848 KB	Output is correct
48	Correct	12 ms	14720 KB	Output is correct
49	Correct	13 ms	14720 KB	Output is correct
50	Correct	11 ms	14592 KB	Output is correct
51	Correct	11 ms	14592 KB	Output is correct
52	Correct	14 ms	14720 KB	Output is correct
53	Correct	12 ms	14720 KB	Output is correct
54	Correct	14 ms	14720 KB	Output is correct
55	Correct	29 ms	15096 KB	Output is correct
56	Correct	184 ms	16948 KB	Output is correct
57	Correct	436 ms	18680 KB	Output is correct
58	Correct	445 ms	19956 KB	Output is correct
59	Correct	1051 ms	23968 KB	Output is correct
60	Correct	967 ms	26412 KB	Output is correct
61	Correct	1376 ms	28264 KB	Output is correct
62	Correct	1575 ms	29620 KB	Output is correct
63	Correct	1570 ms	32408 KB	Output is correct
64	Execution timed out	2080 ms	32316 KB	Time limit exceeded
65	Halted	0 ms	0 KB	-

답안 #266971

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 19.0 / 19.0

Subtask #3 29.0 / 29.0

Subtask #4 0 / 45.0

Subtask #1
7.0 / 7.0

Subtask #2
19.0 / 19.0

Subtask #3
29.0 / 29.0

Subtask #4
0 / 45.0