답안 #25599 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
25599	2017-06-23T07:20:40 Z	kajebiii	Fireworks (APIO16_fireworks)	C++14	100 / 100	476 ms	119464 KB

fireworks

#include <bits/stdc++.h>

using namespace std;

#define REP(i,n) for(int (i)=0;(i)<(int)(n);(i)++)
#define REPO(i,n) for(int (i)=1; (i)<=(int)(n); (i)++)
#define SZ(v) ((int)(v).size())
#define ALL(v) (v).begin(),(v).end()
#define one first
#define two second
typedef long long ll;
typedef pair<int, int> pi;
const int INF = 0x3f2f1f0f;
const ll LINF = 1ll * INF * INF;

const int MAX_N = 3e5 + 100;

int N, M, S[MAX_N], P[MAX_N], C[MAX_N];
vector<pi> Ed[MAX_N];
struct SL {
	priority_queue<ll> Ls;
	priority_queue<ll, vector<ll>, greater<ll> > Rs;
	ll baseL, baseR, ans;
	SL() {
		baseL = baseR = ans = 0;
		while(!Ls.empty()) Ls.pop();
		while(!Rs.empty()) Rs.pop();
	}
	void update() {
		while(Ls.top()+baseL > Rs.top()+baseR) {
			ll a = Ls.top()+baseL;
			ll b = Rs.top()+baseR;
			ans += a-b;
			Ls.pop(); Rs.pop();
			Ls.push(b-baseL); Rs.push(a-baseR);
		}
	}
	void add(int l, int r) {
		Ls.push(l-baseL), Rs.push(r-baseR);
		update();
	}
	void add(SL o) {
		ans += o.ans;
		while(!o.Ls.empty()) Ls.push(o.Ls.top() + o.baseL - baseL), o.Ls.pop();
		while(!o.Rs.empty()) Rs.push(o.Rs.top() + o.baseR - baseR), o.Rs.pop();
		update();
	}
	void addLine(int b) {
		baseR += b; baseL += 0;
		ll l = Ls.top(), r = Rs.top();
		while(!Rs.empty()) Rs.pop();
		Ls.pop();
		Ls.push(l+b);
		Rs.push(r);
		update();
	}
};
vector<SL> Ss; int Ix[MAX_N];
void dfs(int v) {
	S[v] = 1;
	int maxV = -1, ix = -1;
	for(pi &e : Ed[v]) {
		int w, c; tie(w, c) = e;
		if(w == P[v]) continue;
		dfs(w);
		S[v] += S[w];
		if(maxV < S[w]) maxV = S[w], ix = w;
	}
	if(ix == -1) {
		int c = C[v];
		SL node; node.add(c, c);
		Ix[v] = Ss.size();
		Ss.push_back(node);
	} else {
		Ix[v] = Ix[ix];
		for(pi &e : Ed[v]) {
			int w, c; tie(w, c) = e;
			if(w == P[v] || w == ix) continue;
			Ss[Ix[v]].add(Ss[Ix[w]]);
		}
		Ss[Ix[v]].addLine(C[v]);
	}
}
int main() {
	cin >> N >> M; N += M;
	for(int i=2; i<=N; i++) {
		int p, c; scanf("%d%d", &p, &c);
		P[i] = p; C[i] = c;
		Ed[i].push_back(pi(p, c));
		Ed[p].push_back(pi(i, c));
	}
	dfs(1);
	printf("%lld\n", Ss[Ix[1]].ans);
	return 0;
}

Compilation message

fireworks.cpp: In function 'int main()':
fireworks.cpp:87:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int p, c; scanf("%d%d", &p, &c);
                                  ^

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	13748 KB	Output is correct
2	Correct	3 ms	13748 KB	Output is correct
3	Correct	3 ms	13748 KB	Output is correct
4	Correct	0 ms	13748 KB	Output is correct
5	Correct	0 ms	13748 KB	Output is correct
6	Correct	0 ms	13748 KB	Output is correct
7	Correct	0 ms	13748 KB	Output is correct
8	Correct	0 ms	13748 KB	Output is correct
9	Correct	0 ms	13748 KB	Output is correct
10	Correct	0 ms	13748 KB	Output is correct

Subtask #2
19.0 / 19.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	13748 KB	Output is correct
2	Correct	3 ms	13748 KB	Output is correct
3	Correct	3 ms	13748 KB	Output is correct
4	Correct	3 ms	13748 KB	Output is correct
5	Correct	3 ms	13748 KB	Output is correct
6	Correct	0 ms	13748 KB	Output is correct
7	Correct	0 ms	13748 KB	Output is correct
8	Correct	0 ms	13748 KB	Output is correct
9	Correct	0 ms	13748 KB	Output is correct
10	Correct	0 ms	13748 KB	Output is correct
11	Correct	0 ms	13748 KB	Output is correct
12	Correct	0 ms	13880 KB	Output is correct
13	Correct	3 ms	13880 KB	Output is correct
14	Correct	0 ms	13748 KB	Output is correct
15	Correct	3 ms	13880 KB	Output is correct
16	Correct	0 ms	13880 KB	Output is correct
17	Correct	0 ms	13880 KB	Output is correct
18	Correct	3 ms	13880 KB	Output is correct
19	Correct	0 ms	13880 KB	Output is correct

Subtask #3
29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	13748 KB	Output is correct
2	Correct	3 ms	13748 KB	Output is correct
3	Correct	3 ms	13748 KB	Output is correct
4	Correct	0 ms	13748 KB	Output is correct
5	Correct	0 ms	13748 KB	Output is correct
6	Correct	0 ms	13748 KB	Output is correct
7	Correct	0 ms	13748 KB	Output is correct
8	Correct	0 ms	13748 KB	Output is correct
9	Correct	0 ms	13748 KB	Output is correct
10	Correct	0 ms	13748 KB	Output is correct
11	Correct	3 ms	13748 KB	Output is correct
12	Correct	3 ms	13748 KB	Output is correct
13	Correct	3 ms	13748 KB	Output is correct
14	Correct	3 ms	13748 KB	Output is correct
15	Correct	3 ms	13748 KB	Output is correct
16	Correct	0 ms	13748 KB	Output is correct
17	Correct	0 ms	13748 KB	Output is correct
18	Correct	0 ms	13748 KB	Output is correct
19	Correct	0 ms	13748 KB	Output is correct
20	Correct	0 ms	13748 KB	Output is correct
21	Correct	0 ms	13748 KB	Output is correct
22	Correct	0 ms	13880 KB	Output is correct
23	Correct	3 ms	13880 KB	Output is correct
24	Correct	0 ms	13748 KB	Output is correct
25	Correct	3 ms	13880 KB	Output is correct
26	Correct	0 ms	13880 KB	Output is correct
27	Correct	0 ms	13880 KB	Output is correct
28	Correct	3 ms	13880 KB	Output is correct
29	Correct	0 ms	13880 KB	Output is correct
30	Correct	0 ms	13884 KB	Output is correct
31	Correct	3 ms	13888 KB	Output is correct
32	Correct	3 ms	14060 KB	Output is correct
33	Correct	3 ms	14080 KB	Output is correct
34	Correct	3 ms	14196 KB	Output is correct
35	Correct	3 ms	14224 KB	Output is correct
36	Correct	6 ms	14328 KB	Output is correct
37	Correct	3 ms	14352 KB	Output is correct
38	Correct	3 ms	14360 KB	Output is correct
39	Correct	6 ms	14360 KB	Output is correct
40	Correct	6 ms	14768 KB	Output is correct
41	Correct	3 ms	14768 KB	Output is correct
42	Correct	6 ms	13880 KB	Output is correct
43	Correct	3 ms	15008 KB	Output is correct
44	Correct	6 ms	14852 KB	Output is correct
45	Correct	6 ms	14856 KB	Output is correct
46	Correct	9 ms	15456 KB	Output is correct
47	Correct	3 ms	15468 KB	Output is correct
48	Correct	3 ms	15284 KB	Output is correct
49	Correct	6 ms	15304 KB	Output is correct
50	Correct	6 ms	15268 KB	Output is correct
51	Correct	6 ms	15264 KB	Output is correct
52	Correct	3 ms	15276 KB	Output is correct
53	Correct	3 ms	15420 KB	Output is correct
54	Correct	6 ms	15304 KB	Output is correct

Subtask #4
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	13748 KB	Output is correct
2	Correct	3 ms	13748 KB	Output is correct
3	Correct	3 ms	13748 KB	Output is correct
4	Correct	0 ms	13748 KB	Output is correct
5	Correct	0 ms	13748 KB	Output is correct
6	Correct	0 ms	13748 KB	Output is correct
7	Correct	0 ms	13748 KB	Output is correct
8	Correct	0 ms	13748 KB	Output is correct
9	Correct	0 ms	13748 KB	Output is correct
10	Correct	0 ms	13748 KB	Output is correct
11	Correct	3 ms	13748 KB	Output is correct
12	Correct	3 ms	13748 KB	Output is correct
13	Correct	3 ms	13748 KB	Output is correct
14	Correct	3 ms	13748 KB	Output is correct
15	Correct	3 ms	13748 KB	Output is correct
16	Correct	0 ms	13748 KB	Output is correct
17	Correct	0 ms	13748 KB	Output is correct
18	Correct	0 ms	13748 KB	Output is correct
19	Correct	0 ms	13748 KB	Output is correct
20	Correct	0 ms	13748 KB	Output is correct
21	Correct	0 ms	13748 KB	Output is correct
22	Correct	0 ms	13880 KB	Output is correct
23	Correct	3 ms	13880 KB	Output is correct
24	Correct	0 ms	13748 KB	Output is correct
25	Correct	3 ms	13880 KB	Output is correct
26	Correct	0 ms	13880 KB	Output is correct
27	Correct	0 ms	13880 KB	Output is correct
28	Correct	3 ms	13880 KB	Output is correct
29	Correct	0 ms	13880 KB	Output is correct
30	Correct	0 ms	13884 KB	Output is correct
31	Correct	3 ms	13888 KB	Output is correct
32	Correct	3 ms	14060 KB	Output is correct
33	Correct	3 ms	14080 KB	Output is correct
34	Correct	3 ms	14196 KB	Output is correct
35	Correct	3 ms	14224 KB	Output is correct
36	Correct	6 ms	14328 KB	Output is correct
37	Correct	3 ms	14352 KB	Output is correct
38	Correct	3 ms	14360 KB	Output is correct
39	Correct	6 ms	14360 KB	Output is correct
40	Correct	6 ms	14768 KB	Output is correct
41	Correct	3 ms	14768 KB	Output is correct
42	Correct	6 ms	13880 KB	Output is correct
43	Correct	3 ms	15008 KB	Output is correct
44	Correct	6 ms	14852 KB	Output is correct
45	Correct	6 ms	14856 KB	Output is correct
46	Correct	9 ms	15456 KB	Output is correct
47	Correct	3 ms	15468 KB	Output is correct
48	Correct	3 ms	15284 KB	Output is correct
49	Correct	6 ms	15304 KB	Output is correct
50	Correct	6 ms	15268 KB	Output is correct
51	Correct	6 ms	15264 KB	Output is correct
52	Correct	3 ms	15276 KB	Output is correct
53	Correct	3 ms	15420 KB	Output is correct
54	Correct	6 ms	15304 KB	Output is correct
55	Correct	6 ms	15668 KB	Output is correct
56	Correct	53 ms	21436 KB	Output is correct
57	Correct	89 ms	22856 KB	Output is correct
58	Correct	149 ms	29480 KB	Output is correct
59	Correct	209 ms	30700 KB	Output is correct
60	Correct	273 ms	32524 KB	Output is correct
61	Correct	309 ms	44788 KB	Output is correct
62	Correct	339 ms	45556 KB	Output is correct
63	Correct	386 ms	46912 KB	Output is correct
64	Correct	439 ms	47668 KB	Output is correct
65	Correct	179 ms	83932 KB	Output is correct
66	Correct	146 ms	83932 KB	Output is correct
67	Correct	216 ms	23412 KB	Output is correct
68	Correct	269 ms	98888 KB	Output is correct
69	Correct	313 ms	93516 KB	Output is correct
70	Correct	393 ms	93520 KB	Output is correct
71	Correct	349 ms	119464 KB	Output is correct
72	Correct	476 ms	119444 KB	Output is correct
73	Correct	369 ms	115732 KB	Output is correct
74	Correct	313 ms	118792 KB	Output is correct
75	Correct	409 ms	116692 KB	Output is correct
76	Correct	336 ms	116756 KB	Output is correct
77	Correct	403 ms	116224 KB	Output is correct
78	Correct	369 ms	115888 KB	Output is correct
79	Correct	356 ms	111172 KB	Output is correct

답안 #25599

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 19.0 / 19.0

Subtask #3 29.0 / 29.0

Subtask #4 45.0 / 45.0

Subtask #1
7.0 / 7.0

Subtask #2
19.0 / 19.0

Subtask #3
29.0 / 29.0

Subtask #4
45.0 / 45.0