oj.uz

Submission #25581

# Submission time Handle Problem Language Result Execution time Memory
25581 2017-06-23T06:07:41 Z kajebiii Fireworks (APIO16_fireworks) C++14
100 / 100
 416 ms 119460 KB 
#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();
	}
	void print() {
		vector<int> vs;
//		printf("base %lld | ans %lld\n", base, ans);
		while(!Ls.empty()) {
			printf("%lld ", Ls.top()); vs.push_back(Ls.top()); Ls.pop();
		}
		puts("");
		for(int x : vs) Ls.push(x); vs.clear();
		while(!Rs.empty()) {
			printf("%lld ", Rs.top()); vs.push_back(Rs.top()); Rs.pop();
		}
		puts("");		puts("");
		for(int x : vs) Rs.push(x); vs.clear();
	}
};
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]]);
		}
//		printf("%d : %lld\n", v, Ss[Ix[v]].ans);
		Ss[Ix[v]].addLine(C[v]);
	}
//	printf("[%d] (%d) finish\n", v, Ix[v]); Ss[Ix[v]].print();
}
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:103:34: 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

# Verdict Execution time Memory 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 3 ms 13744 KB Output is correct
5 Correct 0 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 0 ms 13744 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 13744 KB Output is correct
2 Correct 0 ms 13744 KB Output is correct
3 Correct 0 ms 13744 KB Output is correct
4 Correct 0 ms 13744 KB Output is correct
5 Correct 3 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 3 ms 13744 KB Output is correct
9 Correct 6 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 13876 KB Output is correct
13 Correct 3 ms 13876 KB Output is correct
14 Correct 0 ms 13744 KB Output is correct
15 Correct 3 ms 13876 KB Output is correct
16 Correct 0 ms 13876 KB Output is correct
17 Correct 3 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

# Verdict Execution time Memory 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 3 ms 13744 KB Output is correct
5 Correct 0 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 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 0 ms 13744 KB Output is correct
14 Correct 0 ms 13744 KB Output is correct
15 Correct 3 ms 13744 KB Output is correct
16 Correct 0 ms 13744 KB Output is correct
17 Correct 3 ms 13744 KB Output is correct
18 Correct 3 ms 13744 KB Output is correct
19 Correct 6 ms 13744 KB Output is correct
20 Correct 0 ms 13744 KB Output is correct
21 Correct 0 ms 13744 KB Output is correct
22 Correct 0 ms 13876 KB Output is correct
23 Correct 3 ms 13876 KB Output is correct
24 Correct 0 ms 13744 KB Output is correct
25 Correct 3 ms 13876 KB Output is correct
26 Correct 0 ms 13876 KB Output is correct
27 Correct 3 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 0 ms 13880 KB Output is correct
31 Correct 3 ms 13884 KB Output is correct
32 Correct 0 ms 14056 KB Output is correct
33 Correct 3 ms 14076 KB Output is correct
34 Correct 3 ms 14192 KB Output is correct
35 Correct 3 ms 14220 KB Output is correct
36 Correct 3 ms 14324 KB Output is correct
37 Correct 3 ms 14348 KB Output is correct
38 Correct 3 ms 14356 KB Output is correct
39 Correct 3 ms 14356 KB Output is correct
40 Correct 3 ms 14848 KB Output is correct
41 Correct 0 ms 14848 KB Output is correct
42 Correct 0 ms 13876 KB Output is correct
43 Correct 6 ms 15044 KB Output is correct
44 Correct 3 ms 14876 KB Output is correct
45 Correct 3 ms 14876 KB Output is correct
46 Correct 6 ms 15452 KB Output is correct
47 Correct 6 ms 15464 KB Output is correct
48 Correct 3 ms 15280 KB Output is correct
49 Correct 3 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 6 ms 15272 KB Output is correct
53 Correct 6 ms 15416 KB Output is correct
54 Correct 9 ms 15300 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory 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 3 ms 13744 KB Output is correct
5 Correct 0 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 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 0 ms 13744 KB Output is correct
14 Correct 0 ms 13744 KB Output is correct
15 Correct 3 ms 13744 KB Output is correct
16 Correct 0 ms 13744 KB Output is correct
17 Correct 3 ms 13744 KB Output is correct
18 Correct 3 ms 13744 KB Output is correct
19 Correct 6 ms 13744 KB Output is correct
20 Correct 0 ms 13744 KB Output is correct
21 Correct 0 ms 13744 KB Output is correct
22 Correct 0 ms 13876 KB Output is correct
23 Correct 3 ms 13876 KB Output is correct
24 Correct 0 ms 13744 KB Output is correct
25 Correct 3 ms 13876 KB Output is correct
26 Correct 0 ms 13876 KB Output is correct
27 Correct 3 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 0 ms 13880 KB Output is correct
31 Correct 3 ms 13884 KB Output is correct
32 Correct 0 ms 14056 KB Output is correct
33 Correct 3 ms 14076 KB Output is correct
34 Correct 3 ms 14192 KB Output is correct
35 Correct 3 ms 14220 KB Output is correct
36 Correct 3 ms 14324 KB Output is correct
37 Correct 3 ms 14348 KB Output is correct
38 Correct 3 ms 14356 KB Output is correct
39 Correct 3 ms 14356 KB Output is correct
40 Correct 3 ms 14848 KB Output is correct
41 Correct 0 ms 14848 KB Output is correct
42 Correct 0 ms 13876 KB Output is correct
43 Correct 6 ms 15044 KB Output is correct
44 Correct 3 ms 14876 KB Output is correct
45 Correct 3 ms 14876 KB Output is correct
46 Correct 6 ms 15452 KB Output is correct
47 Correct 6 ms 15464 KB Output is correct
48 Correct 3 ms 15280 KB Output is correct
49 Correct 3 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 6 ms 15272 KB Output is correct
53 Correct 6 ms 15416 KB Output is correct
54 Correct 9 ms 15300 KB Output is correct
55 Correct 13 ms 15664 KB Output is correct
56 Correct 63 ms 21384 KB Output is correct
57 Correct 99 ms 22804 KB Output is correct
58 Correct 96 ms 29432 KB Output is correct
59 Correct 196 ms 30680 KB Output is correct
60 Correct 256 ms 32632 KB Output is correct
61 Correct 273 ms 44776 KB Output is correct
62 Correct 303 ms 45564 KB Output is correct
63 Correct 369 ms 46876 KB Output is correct
64 Correct 416 ms 47624 KB Output is correct
65 Correct 133 ms 88616 KB Output is correct
66 Correct 169 ms 88612 KB Output is correct
67 Correct 209 ms 23420 KB Output is correct
68 Correct 243 ms 101224 KB Output is correct
69 Correct 326 ms 95468 KB Output is correct
70 Correct 346 ms 95468 KB Output is correct
71 Correct 383 ms 119460 KB Output is correct
72 Correct 369 ms 119440 KB Output is correct
73 Correct 316 ms 115728 KB Output is correct
74 Correct 319 ms 118784 KB Output is correct
75 Correct 386 ms 116688 KB Output is correct
76 Correct 323 ms 116752 KB Output is correct
77 Correct 386 ms 116220 KB Output is correct
78 Correct 406 ms 115880 KB Output is correct
79 Correct 403 ms 111168 KB Output is correct