oj.uz

Submission #56332

# Submission time Handle Problem Language Result Execution time Memory
56332 2018-07-11T05:20:31 Z khsoo01(#2109) Construction of Highway (JOI18_construction) C++11
100 / 100
 1655 ms 22196 KB 
#include<bits/stdc++.h>
#define X first
#define Y second
using namespace std;
typedef pair<int,int> pii;

const int N = 100005, L = 131072, G = 17, inf = 1e9;

int n, x[N], a[N], b[N];
int sp[N][G], dep[N], s[N], e[N], cc;

vector<int> adj[N], cpr;
vector<pii> act;

struct maxseg {
	int v[4*N];
	void upd (int P, int V) {
		P += L;
		while(P) {
			v[P] = max(v[P], V);
			P /= 2;
		}
	}
	int get (int S, int E) {
		S += L;
		E += L;
		int R = 0;
		while(S <= E) {
			if(S%2 == 1) R = max(R, v[S++]);
			if(E%2 == 0) R = max(R, v[E--]);
			S /= 2;
			E /= 2;
		}
		return R;
	}
	int lb (int S, int V) {
		S += L;
		while(true) {
			if(v[S] > V) break;
			S = (S - 1) / 2;
		}
		while(S < L) {
			S = 2*S + (v[2*S+1] > V);
		}
		return S - L;
	}
	int rb (int S, int V) {
		S += L;
		while(true) {
			if(v[S] > V) break;
			S = (S + 1) / 2;
		}
		while(S < L) {
			S = 2*S+1 - (v[2*S] > V);
		}
		return S - L;
	}
} ms;

struct sumseg {
	int v[4*N];
	void upd (int P, int V) {
		P += L;
		while(P) {
			v[P] += V;
			P /= 2;
		}
	}
	int get (int S, int E) {
		S += L;
		E += L;
		int R = 0;
		while(S <= E) {
			if(S%2 == 1) R += v[S++];
			if(E%2 == 0) R += v[E--];
			S /= 2;
			E /= 2;
		}
		return R;
	}
} ss;

void calc (int I) {
	s[I] = ++cc;
	for(auto &T : adj[I]) {
		sp[T][0] = I;
		dep[T] = dep[I] + 1;
		calc(T);
	}
	e[I] = cc;
}

int main()
{
	scanf("%d",&n);
	ms.upd(0, inf);
	ms.upd(n+1, inf);
	for(int i=1;i<=n;i++) {
		scanf("%d",&x[i]);
		cpr.push_back(x[i]);
	}
	sort(cpr.begin(), cpr.end());
	cpr.erase(unique(cpr.begin(), cpr.end()), cpr.end());
	for(int i=1;i<=n;i++) {
		x[i] = lower_bound(cpr.begin(), cpr.end(), x[i]) - cpr.begin();
	}
	b[0] = 1;
	for(int i=1;i<n;i++) {
		scanf("%d%d",&a[i],&b[i]);
		adj[a[i]].push_back(b[i]);
	}
	dep[1] = 1;
	calc(1);
	for(int i=1;i<G;i++) {
		for(int j=1;j<=n;j++) {
			sp[j][i] = sp[sp[j][i-1]][i-1];
		}
	}
	for(int i=1;i<n;i++) {
		long long ans = 0;
		for(int C = a[i], T; C; C = T) {
			int V = ms.get(s[C], e[C]);
			int S = ms.lb(s[C], V) + 1;
			int E = ms.rb(e[C], V) - 1;
			T = C;
			for(int j=G;j--;) {
				int P = sp[T][j];
				if(S <= s[P] && e[P] <= E) T = P;
			}
			T = sp[T][0];
			int A = x[b[V]], B = dep[C] - dep[T];
			ans += 1ll * B * ss.get(0, A-1);
			ss.upd(A, B);
			act.push_back({A, B});
		}
		printf("%lld\n",ans);
		for(auto &T : act) {
			int A, B;
			tie(A, B) = T;
			ss.upd(A, -B);
		}
		act.clear();
		ms.upd(s[b[i]], i);
	}
}

Compilation message

construction.cpp: In function 'int main()':
construction.cpp:95:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
construction.cpp:99:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&x[i]);
   ~~~~~^~~~~~~~~~~~
construction.cpp:109:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&a[i],&b[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 2808 KB Output is correct
2 Correct 6 ms 2808 KB Output is correct
3 Correct 6 ms 2996 KB Output is correct
4 Correct 5 ms 3000 KB Output is correct
5 Correct 6 ms 3184 KB Output is correct
6 Correct 7 ms 3184 KB Output is correct
7 Correct 6 ms 3184 KB Output is correct
8 Correct 6 ms 3184 KB Output is correct
9 Correct 7 ms 3184 KB Output is correct
10 Correct 7 ms 3184 KB Output is correct
11 Correct 6 ms 3184 KB Output is correct
12 Correct 7 ms 3184 KB Output is correct
13 Correct 6 ms 3184 KB Output is correct
14 Correct 7 ms 3184 KB Output is correct
15 Correct 7 ms 3184 KB Output is correct
16 Correct 8 ms 3184 KB Output is correct
17 Correct 10 ms 3184 KB Output is correct
18 Correct 8 ms 3184 KB Output is correct
19 Correct 5 ms 3184 KB Output is correct
20 Correct 7 ms 3184 KB Output is correct
21 Correct 7 ms 3184 KB Output is correct
22 Correct 7 ms 3184 KB Output is correct
23 Correct 3 ms 3184 KB Output is correct
24 Correct 6 ms 3184 KB Output is correct
25 Correct 7 ms 3184 KB Output is correct
26 Correct 6 ms 3184 KB Output is correct
27 Correct 6 ms 3184 KB Output is correct
28 Correct 6 ms 3184 KB Output is correct
29 Correct 6 ms 3184 KB Output is correct
30 Correct 5 ms 3184 KB Output is correct
31 Correct 5 ms 3184 KB Output is correct
32 Correct 4 ms 3184 KB Output is correct
33 Correct 4 ms 3184 KB Output is correct
34 Correct 4 ms 3184 KB Output is correct
35 Correct 4 ms 3184 KB Output is correct
36 Correct 4 ms 3184 KB Output is correct
37 Correct 7 ms 3184 KB Output is correct
38 Correct 4 ms 3184 KB Output is correct
39 Correct 6 ms 3184 KB Output is correct
40 Correct 6 ms 3184 KB Output is correct
41 Correct 4 ms 3184 KB Output is correct
42 Correct 4 ms 3184 KB Output is correct
43 Correct 5 ms 3184 KB Output is correct
44 Correct 5 ms 3184 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 2808 KB Output is correct
2 Correct 6 ms 2808 KB Output is correct
3 Correct 6 ms 2996 KB Output is correct
4 Correct 5 ms 3000 KB Output is correct
5 Correct 6 ms 3184 KB Output is correct
6 Correct 7 ms 3184 KB Output is correct
7 Correct 6 ms 3184 KB Output is correct
8 Correct 6 ms 3184 KB Output is correct
9 Correct 7 ms 3184 KB Output is correct
10 Correct 7 ms 3184 KB Output is correct
11 Correct 6 ms 3184 KB Output is correct
12 Correct 7 ms 3184 KB Output is correct
13 Correct 6 ms 3184 KB Output is correct
14 Correct 7 ms 3184 KB Output is correct
15 Correct 7 ms 3184 KB Output is correct
16 Correct 8 ms 3184 KB Output is correct
17 Correct 10 ms 3184 KB Output is correct
18 Correct 8 ms 3184 KB Output is correct
19 Correct 5 ms 3184 KB Output is correct
20 Correct 7 ms 3184 KB Output is correct
21 Correct 7 ms 3184 KB Output is correct
22 Correct 7 ms 3184 KB Output is correct
23 Correct 3 ms 3184 KB Output is correct
24 Correct 6 ms 3184 KB Output is correct
25 Correct 7 ms 3184 KB Output is correct
26 Correct 6 ms 3184 KB Output is correct
27 Correct 6 ms 3184 KB Output is correct
28 Correct 6 ms 3184 KB Output is correct
29 Correct 6 ms 3184 KB Output is correct
30 Correct 5 ms 3184 KB Output is correct
31 Correct 5 ms 3184 KB Output is correct
32 Correct 4 ms 3184 KB Output is correct
33 Correct 4 ms 3184 KB Output is correct
34 Correct 4 ms 3184 KB Output is correct
35 Correct 4 ms 3184 KB Output is correct
36 Correct 4 ms 3184 KB Output is correct
37 Correct 7 ms 3184 KB Output is correct
38 Correct 4 ms 3184 KB Output is correct
39 Correct 6 ms 3184 KB Output is correct
40 Correct 6 ms 3184 KB Output is correct
41 Correct 4 ms 3184 KB Output is correct
42 Correct 4 ms 3184 KB Output is correct
43 Correct 5 ms 3184 KB Output is correct
44 Correct 5 ms 3184 KB Output is correct
45 Correct 6 ms 3196 KB Output is correct
46 Correct 14 ms 3580 KB Output is correct
47 Correct 14 ms 3708 KB Output is correct
48 Correct 19 ms 3708 KB Output is correct
49 Correct 10 ms 3848 KB Output is correct
50 Correct 10 ms 3868 KB Output is correct
51 Correct 10 ms 3868 KB Output is correct
52 Correct 10 ms 3868 KB Output is correct
53 Correct 10 ms 3868 KB Output is correct
54 Correct 11 ms 3868 KB Output is correct
55 Correct 10 ms 3896 KB Output is correct
56 Correct 13 ms 3896 KB Output is correct
57 Correct 24 ms 3896 KB Output is correct
58 Correct 20 ms 3896 KB Output is correct
59 Correct 30 ms 3896 KB Output is correct
60 Correct 19 ms 3896 KB Output is correct
61 Correct 12 ms 3896 KB Output is correct
62 Correct 15 ms 3896 KB Output is correct
63 Correct 11 ms 3896 KB Output is correct
64 Correct 14 ms 3896 KB Output is correct
65 Correct 12 ms 3896 KB Output is correct
66 Correct 13 ms 3896 KB Output is correct
67 Correct 13 ms 3896 KB Output is correct
68 Correct 9 ms 3896 KB Output is correct
69 Correct 10 ms 3896 KB Output is correct
70 Correct 10 ms 3896 KB Output is correct
71 Correct 10 ms 3896 KB Output is correct
72 Correct 19 ms 3896 KB Output is correct
73 Correct 17 ms 3896 KB Output is correct
74 Correct 16 ms 3896 KB Output is correct
75 Correct 14 ms 3896 KB Output is correct
76 Correct 14 ms 3896 KB Output is correct
77 Correct 14 ms 3896 KB Output is correct
78 Correct 11 ms 3896 KB Output is correct
79 Correct 12 ms 3896 KB Output is correct
80 Correct 21 ms 3896 KB Output is correct
81 Correct 21 ms 3896 KB Output is correct
82 Correct 17 ms 3896 KB Output is correct
83 Correct 13 ms 3896 KB Output is correct
84 Correct 17 ms 3896 KB Output is correct
85 Correct 16 ms 3896 KB Output is correct
86 Correct 15 ms 3896 KB Output is correct

Subtask #3
84.0 / 84.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 2808 KB Output is correct
2 Correct 6 ms 2808 KB Output is correct
3 Correct 6 ms 2996 KB Output is correct
4 Correct 5 ms 3000 KB Output is correct
5 Correct 6 ms 3184 KB Output is correct
6 Correct 7 ms 3184 KB Output is correct
7 Correct 6 ms 3184 KB Output is correct
8 Correct 6 ms 3184 KB Output is correct
9 Correct 7 ms 3184 KB Output is correct
10 Correct 7 ms 3184 KB Output is correct
11 Correct 6 ms 3184 KB Output is correct
12 Correct 7 ms 3184 KB Output is correct
13 Correct 6 ms 3184 KB Output is correct
14 Correct 7 ms 3184 KB Output is correct
15 Correct 7 ms 3184 KB Output is correct
16 Correct 8 ms 3184 KB Output is correct
17 Correct 10 ms 3184 KB Output is correct
18 Correct 8 ms 3184 KB Output is correct
19 Correct 5 ms 3184 KB Output is correct
20 Correct 7 ms 3184 KB Output is correct
21 Correct 7 ms 3184 KB Output is correct
22 Correct 7 ms 3184 KB Output is correct
23 Correct 3 ms 3184 KB Output is correct
24 Correct 6 ms 3184 KB Output is correct
25 Correct 7 ms 3184 KB Output is correct
26 Correct 6 ms 3184 KB Output is correct
27 Correct 6 ms 3184 KB Output is correct
28 Correct 6 ms 3184 KB Output is correct
29 Correct 6 ms 3184 KB Output is correct
30 Correct 5 ms 3184 KB Output is correct
31 Correct 5 ms 3184 KB Output is correct
32 Correct 4 ms 3184 KB Output is correct
33 Correct 4 ms 3184 KB Output is correct
34 Correct 4 ms 3184 KB Output is correct
35 Correct 4 ms 3184 KB Output is correct
36 Correct 4 ms 3184 KB Output is correct
37 Correct 7 ms 3184 KB Output is correct
38 Correct 4 ms 3184 KB Output is correct
39 Correct 6 ms 3184 KB Output is correct
40 Correct 6 ms 3184 KB Output is correct
41 Correct 4 ms 3184 KB Output is correct
42 Correct 4 ms 3184 KB Output is correct
43 Correct 5 ms 3184 KB Output is correct
44 Correct 5 ms 3184 KB Output is correct
45 Correct 6 ms 3196 KB Output is correct
46 Correct 14 ms 3580 KB Output is correct
47 Correct 14 ms 3708 KB Output is correct
48 Correct 19 ms 3708 KB Output is correct
49 Correct 10 ms 3848 KB Output is correct
50 Correct 10 ms 3868 KB Output is correct
51 Correct 10 ms 3868 KB Output is correct
52 Correct 10 ms 3868 KB Output is correct
53 Correct 10 ms 3868 KB Output is correct
54 Correct 11 ms 3868 KB Output is correct
55 Correct 10 ms 3896 KB Output is correct
56 Correct 13 ms 3896 KB Output is correct
57 Correct 24 ms 3896 KB Output is correct
58 Correct 20 ms 3896 KB Output is correct
59 Correct 30 ms 3896 KB Output is correct
60 Correct 19 ms 3896 KB Output is correct
61 Correct 12 ms 3896 KB Output is correct
62 Correct 15 ms 3896 KB Output is correct
63 Correct 11 ms 3896 KB Output is correct
64 Correct 14 ms 3896 KB Output is correct
65 Correct 12 ms 3896 KB Output is correct
66 Correct 13 ms 3896 KB Output is correct
67 Correct 13 ms 3896 KB Output is correct
68 Correct 9 ms 3896 KB Output is correct
69 Correct 10 ms 3896 KB Output is correct
70 Correct 10 ms 3896 KB Output is correct
71 Correct 10 ms 3896 KB Output is correct
72 Correct 19 ms 3896 KB Output is correct
73 Correct 17 ms 3896 KB Output is correct
74 Correct 16 ms 3896 KB Output is correct
75 Correct 14 ms 3896 KB Output is correct
76 Correct 14 ms 3896 KB Output is correct
77 Correct 14 ms 3896 KB Output is correct
78 Correct 11 ms 3896 KB Output is correct
79 Correct 12 ms 3896 KB Output is correct
80 Correct 21 ms 3896 KB Output is correct
81 Correct 21 ms 3896 KB Output is correct
82 Correct 17 ms 3896 KB Output is correct
83 Correct 13 ms 3896 KB Output is correct
84 Correct 17 ms 3896 KB Output is correct
85 Correct 16 ms 3896 KB Output is correct
86 Correct 15 ms 3896 KB Output is correct
87 Correct 38 ms 4412 KB Output is correct
88 Correct 177 ms 7136 KB Output is correct
89 Correct 787 ms 16060 KB Output is correct
90 Correct 706 ms 16060 KB Output is correct
91 Correct 771 ms 16060 KB Output is correct
92 Correct 447 ms 22188 KB Output is correct
93 Correct 411 ms 22196 KB Output is correct
94 Correct 421 ms 22196 KB Output is correct
95 Correct 408 ms 22196 KB Output is correct
96 Correct 516 ms 22196 KB Output is correct
97 Correct 481 ms 22196 KB Output is correct
98 Correct 483 ms 22196 KB Output is correct
99 Correct 487 ms 22196 KB Output is correct
100 Correct 1427 ms 22196 KB Output is correct
101 Correct 1623 ms 22196 KB Output is correct
102 Correct 1655 ms 22196 KB Output is correct
103 Correct 1481 ms 22196 KB Output is correct
104 Correct 574 ms 22196 KB Output is correct
105 Correct 549 ms 22196 KB Output is correct
106 Correct 545 ms 22196 KB Output is correct
107 Correct 627 ms 22196 KB Output is correct
108 Correct 688 ms 22196 KB Output is correct
109 Correct 802 ms 22196 KB Output is correct
110 Correct 346 ms 22196 KB Output is correct
111 Correct 443 ms 22196 KB Output is correct
112 Correct 437 ms 22196 KB Output is correct
113 Correct 382 ms 22196 KB Output is correct
114 Correct 1345 ms 22196 KB Output is correct
115 Correct 1309 ms 22196 KB Output is correct
116 Correct 577 ms 22196 KB Output is correct
117 Correct 408 ms 22196 KB Output is correct
118 Correct 426 ms 22196 KB Output is correct
119 Correct 400 ms 22196 KB Output is correct
120 Correct 403 ms 22196 KB Output is correct
121 Correct 365 ms 22196 KB Output is correct
122 Correct 351 ms 22196 KB Output is correct
123 Correct 548 ms 22196 KB Output is correct
124 Correct 542 ms 22196 KB Output is correct
125 Correct 531 ms 22196 KB Output is correct
126 Correct 397 ms 22196 KB Output is correct
127 Correct 311 ms 22196 KB Output is correct
128 Correct 351 ms 22196 KB Output is correct