답안 #25582 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
25582	2017-06-23T06:10:51 Z	kajebiii	Fireworks (APIO16_fireworks)	C++14	100 / 100	466 ms	119460 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()) Ls.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(ll l, ll 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();
		Ls.pop();
		Ls.push(l+b);
		while(!Rs.empty()) Rs.pop();
		Rs.push(r);
		update();
	}
};
vector<SL> Ss; int Ix[MAX_N];
void dfs(int v, int p) {
	S[v] = 1;
	int maxV = -1, ix = -1;
	for(pi &e : Ed[v]) {
		int w, c; tie(w, c) = e;
		if(w == p) continue;
		dfs(w, v);
		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 || 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, 0);
	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	13744 KB	Output is correct
2	Correct	0 ms	13744 KB	Output is correct
3	Correct	6 ms	13744 KB	Output is correct
4	Correct	3 ms	13744 KB	Output is correct
5	Correct	0 ms	13744 KB	Output is correct
6	Correct	0 ms	13744 KB	Output is correct
7	Correct	3 ms	13744 KB	Output is correct
8	Correct	0 ms	13744 KB	Output is correct
9	Correct	3 ms	13744 KB	Output is correct
10	Correct	0 ms	13744 KB	Output is correct

Subtask #2
19.0 / 19.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	13744 KB	Output is correct
2	Correct	0 ms	13744 KB	Output is correct
3	Correct	3 ms	13744 KB	Output is correct
4	Correct	0 ms	13744 KB	Output is correct
5	Correct	6 ms	13744 KB	Output is correct
6	Correct	3 ms	13744 KB	Output is correct
7	Correct	6 ms	13744 KB	Output is correct
8	Correct	3 ms	13744 KB	Output is correct
9	Correct	0 ms	13744 KB	Output is correct
10	Correct	3 ms	13744 KB	Output is correct
11	Correct	3 ms	13744 KB	Output is correct
12	Correct	0 ms	13876 KB	Output is correct
13	Correct	0 ms	13876 KB	Output is correct
14	Correct	3 ms	13744 KB	Output is correct
15	Correct	6 ms	13876 KB	Output is correct
16	Correct	0 ms	13876 KB	Output is correct
17	Correct	0 ms	13876 KB	Output is correct
18	Correct	0 ms	13876 KB	Output is correct
19	Correct	0 ms	13876 KB	Output is correct

Subtask #3
29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	13744 KB	Output is correct
2	Correct	0 ms	13744 KB	Output is correct
3	Correct	6 ms	13744 KB	Output is correct
4	Correct	3 ms	13744 KB	Output is correct
5	Correct	0 ms	13744 KB	Output is correct
6	Correct	0 ms	13744 KB	Output is correct
7	Correct	3 ms	13744 KB	Output is correct
8	Correct	0 ms	13744 KB	Output is correct
9	Correct	3 ms	13744 KB	Output is correct
10	Correct	0 ms	13744 KB	Output is correct
11	Correct	0 ms	13744 KB	Output is correct
12	Correct	0 ms	13744 KB	Output is correct
13	Correct	3 ms	13744 KB	Output is correct
14	Correct	0 ms	13744 KB	Output is correct
15	Correct	6 ms	13744 KB	Output is correct
16	Correct	3 ms	13744 KB	Output is correct
17	Correct	6 ms	13744 KB	Output is correct
18	Correct	3 ms	13744 KB	Output is correct
19	Correct	0 ms	13744 KB	Output is correct
20	Correct	3 ms	13744 KB	Output is correct
21	Correct	3 ms	13744 KB	Output is correct
22	Correct	0 ms	13876 KB	Output is correct
23	Correct	0 ms	13876 KB	Output is correct
24	Correct	3 ms	13744 KB	Output is correct
25	Correct	6 ms	13876 KB	Output is correct
26	Correct	0 ms	13876 KB	Output is correct
27	Correct	0 ms	13876 KB	Output is correct
28	Correct	0 ms	13876 KB	Output is correct
29	Correct	0 ms	13876 KB	Output is correct
30	Correct	3 ms	13880 KB	Output is correct
31	Correct	0 ms	13884 KB	Output is correct
32	Correct	0 ms	14056 KB	Output is correct
33	Correct	0 ms	14076 KB	Output is correct
34	Correct	3 ms	14192 KB	Output is correct
35	Correct	0 ms	14220 KB	Output is correct
36	Correct	0 ms	14324 KB	Output is correct
37	Correct	6 ms	14348 KB	Output is correct
38	Correct	3 ms	14356 KB	Output is correct
39	Correct	13 ms	14356 KB	Output is correct
40	Correct	3 ms	14844 KB	Output is correct
41	Correct	3 ms	14844 KB	Output is correct
42	Correct	3 ms	13876 KB	Output is correct
43	Correct	13 ms	15044 KB	Output is correct
44	Correct	6 ms	14876 KB	Output is correct
45	Correct	6 ms	14880 KB	Output is correct
46	Correct	6 ms	15452 KB	Output is correct
47	Correct	13 ms	15464 KB	Output is correct
48	Correct	3 ms	15280 KB	Output is correct
49	Correct	9 ms	15300 KB	Output is correct
50	Correct	6 ms	15264 KB	Output is correct
51	Correct	6 ms	15260 KB	Output is correct
52	Correct	0 ms	15272 KB	Output is correct
53	Correct	6 ms	15416 KB	Output is correct
54	Correct	3 ms	15300 KB	Output is correct

Subtask #4
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	13744 KB	Output is correct
2	Correct	0 ms	13744 KB	Output is correct
3	Correct	6 ms	13744 KB	Output is correct
4	Correct	3 ms	13744 KB	Output is correct
5	Correct	0 ms	13744 KB	Output is correct
6	Correct	0 ms	13744 KB	Output is correct
7	Correct	3 ms	13744 KB	Output is correct
8	Correct	0 ms	13744 KB	Output is correct
9	Correct	3 ms	13744 KB	Output is correct
10	Correct	0 ms	13744 KB	Output is correct
11	Correct	0 ms	13744 KB	Output is correct
12	Correct	0 ms	13744 KB	Output is correct
13	Correct	3 ms	13744 KB	Output is correct
14	Correct	0 ms	13744 KB	Output is correct
15	Correct	6 ms	13744 KB	Output is correct
16	Correct	3 ms	13744 KB	Output is correct
17	Correct	6 ms	13744 KB	Output is correct
18	Correct	3 ms	13744 KB	Output is correct
19	Correct	0 ms	13744 KB	Output is correct
20	Correct	3 ms	13744 KB	Output is correct
21	Correct	3 ms	13744 KB	Output is correct
22	Correct	0 ms	13876 KB	Output is correct
23	Correct	0 ms	13876 KB	Output is correct
24	Correct	3 ms	13744 KB	Output is correct
25	Correct	6 ms	13876 KB	Output is correct
26	Correct	0 ms	13876 KB	Output is correct
27	Correct	0 ms	13876 KB	Output is correct
28	Correct	0 ms	13876 KB	Output is correct
29	Correct	0 ms	13876 KB	Output is correct
30	Correct	3 ms	13880 KB	Output is correct
31	Correct	0 ms	13884 KB	Output is correct
32	Correct	0 ms	14056 KB	Output is correct
33	Correct	0 ms	14076 KB	Output is correct
34	Correct	3 ms	14192 KB	Output is correct
35	Correct	0 ms	14220 KB	Output is correct
36	Correct	0 ms	14324 KB	Output is correct
37	Correct	6 ms	14348 KB	Output is correct
38	Correct	3 ms	14356 KB	Output is correct
39	Correct	13 ms	14356 KB	Output is correct
40	Correct	3 ms	14844 KB	Output is correct
41	Correct	3 ms	14844 KB	Output is correct
42	Correct	3 ms	13876 KB	Output is correct
43	Correct	13 ms	15044 KB	Output is correct
44	Correct	6 ms	14876 KB	Output is correct
45	Correct	6 ms	14880 KB	Output is correct
46	Correct	6 ms	15452 KB	Output is correct
47	Correct	13 ms	15464 KB	Output is correct
48	Correct	3 ms	15280 KB	Output is correct
49	Correct	9 ms	15300 KB	Output is correct
50	Correct	6 ms	15264 KB	Output is correct
51	Correct	6 ms	15260 KB	Output is correct
52	Correct	0 ms	15272 KB	Output is correct
53	Correct	6 ms	15416 KB	Output is correct
54	Correct	3 ms	15300 KB	Output is correct
55	Correct	3 ms	15664 KB	Output is correct
56	Correct	43 ms	21380 KB	Output is correct
57	Correct	96 ms	22812 KB	Output is correct
58	Correct	149 ms	29436 KB	Output is correct
59	Correct	226 ms	30684 KB	Output is correct
60	Correct	266 ms	32636 KB	Output is correct
61	Correct	323 ms	44776 KB	Output is correct
62	Correct	339 ms	45568 KB	Output is correct
63	Correct	386 ms	46880 KB	Output is correct
64	Correct	416 ms	47620 KB	Output is correct
65	Correct	159 ms	88620 KB	Output is correct
66	Correct	186 ms	88612 KB	Output is correct
67	Correct	196 ms	23424 KB	Output is correct
68	Correct	296 ms	101224 KB	Output is correct
69	Correct	339 ms	95464 KB	Output is correct
70	Correct	336 ms	95468 KB	Output is correct
71	Correct	316 ms	119460 KB	Output is correct
72	Correct	466 ms	119440 KB	Output is correct
73	Correct	306 ms	115728 KB	Output is correct
74	Correct	403 ms	118784 KB	Output is correct
75	Correct	366 ms	116688 KB	Output is correct
76	Correct	329 ms	116752 KB	Output is correct
77	Correct	393 ms	116220 KB	Output is correct
78	Correct	389 ms	115880 KB	Output is correct
79	Correct	356 ms	111168 KB	Output is correct

답안 #25582

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