oj.uz

Submission #56342

# Submission time Handle Problem Language Result Execution time Memory
56342 2018-07-11T05:28:20 Z khsoo01 Construction of Highway (JOI18_construction) C++11
100 / 100
 1335 ms 22260 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 3 ms 2808 KB Output is correct
2 Correct 4 ms 2808 KB Output is correct
3 Correct 4 ms 2992 KB Output is correct
4 Correct 4 ms 2992 KB Output is correct
5 Correct 5 ms 3072 KB Output is correct
6 Correct 5 ms 3072 KB Output is correct
7 Correct 5 ms 3072 KB Output is correct
8 Correct 5 ms 3072 KB Output is correct
9 Correct 5 ms 3164 KB Output is correct
10 Correct 4 ms 3164 KB Output is correct
11 Correct 4 ms 3164 KB Output is correct
12 Correct 4 ms 3164 KB Output is correct
13 Correct 6 ms 3164 KB Output is correct
14 Correct 5 ms 3164 KB Output is correct
15 Correct 6 ms 3164 KB Output is correct
16 Correct 6 ms 3164 KB Output is correct
17 Correct 7 ms 3164 KB Output is correct
18 Correct 7 ms 3164 KB Output is correct
19 Correct 6 ms 3164 KB Output is correct
20 Correct 7 ms 3164 KB Output is correct
21 Correct 6 ms 3164 KB Output is correct
22 Correct 7 ms 3164 KB Output is correct
23 Correct 7 ms 3164 KB Output is correct
24 Correct 7 ms 3164 KB Output is correct
25 Correct 7 ms 3164 KB Output is correct
26 Correct 5 ms 3164 KB Output is correct
27 Correct 4 ms 3164 KB Output is correct
28 Correct 6 ms 3164 KB Output is correct
29 Correct 5 ms 3164 KB Output is correct
30 Correct 5 ms 3164 KB Output is correct
31 Correct 11 ms 3164 KB Output is correct
32 Correct 6 ms 3184 KB Output is correct
33 Correct 6 ms 3184 KB Output is correct
34 Correct 5 ms 3184 KB Output is correct
35 Correct 6 ms 3184 KB Output is correct
36 Correct 6 ms 3184 KB Output is correct
37 Correct 5 ms 3184 KB Output is correct
38 Correct 6 ms 3184 KB Output is correct
39 Correct 5 ms 3184 KB Output is correct
40 Correct 5 ms 3184 KB Output is correct
41 Correct 5 ms 3184 KB Output is correct
42 Correct 5 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 3 ms 2808 KB Output is correct
2 Correct 4 ms 2808 KB Output is correct
3 Correct 4 ms 2992 KB Output is correct
4 Correct 4 ms 2992 KB Output is correct
5 Correct 5 ms 3072 KB Output is correct
6 Correct 5 ms 3072 KB Output is correct
7 Correct 5 ms 3072 KB Output is correct
8 Correct 5 ms 3072 KB Output is correct
9 Correct 5 ms 3164 KB Output is correct
10 Correct 4 ms 3164 KB Output is correct
11 Correct 4 ms 3164 KB Output is correct
12 Correct 4 ms 3164 KB Output is correct
13 Correct 6 ms 3164 KB Output is correct
14 Correct 5 ms 3164 KB Output is correct
15 Correct 6 ms 3164 KB Output is correct
16 Correct 6 ms 3164 KB Output is correct
17 Correct 7 ms 3164 KB Output is correct
18 Correct 7 ms 3164 KB Output is correct
19 Correct 6 ms 3164 KB Output is correct
20 Correct 7 ms 3164 KB Output is correct
21 Correct 6 ms 3164 KB Output is correct
22 Correct 7 ms 3164 KB Output is correct
23 Correct 7 ms 3164 KB Output is correct
24 Correct 7 ms 3164 KB Output is correct
25 Correct 7 ms 3164 KB Output is correct
26 Correct 5 ms 3164 KB Output is correct
27 Correct 4 ms 3164 KB Output is correct
28 Correct 6 ms 3164 KB Output is correct
29 Correct 5 ms 3164 KB Output is correct
30 Correct 5 ms 3164 KB Output is correct
31 Correct 11 ms 3164 KB Output is correct
32 Correct 6 ms 3184 KB Output is correct
33 Correct 6 ms 3184 KB Output is correct
34 Correct 5 ms 3184 KB Output is correct
35 Correct 6 ms 3184 KB Output is correct
36 Correct 6 ms 3184 KB Output is correct
37 Correct 5 ms 3184 KB Output is correct
38 Correct 6 ms 3184 KB Output is correct
39 Correct 5 ms 3184 KB Output is correct
40 Correct 5 ms 3184 KB Output is correct
41 Correct 5 ms 3184 KB Output is correct
42 Correct 5 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 7 ms 3196 KB Output is correct
46 Correct 14 ms 3580 KB Output is correct
47 Correct 14 ms 3584 KB Output is correct
48 Correct 13 ms 3596 KB Output is correct
49 Correct 9 ms 3724 KB Output is correct
50 Correct 9 ms 3728 KB Output is correct
51 Correct 10 ms 3852 KB Output is correct
52 Correct 13 ms 3852 KB Output is correct
53 Correct 13 ms 3852 KB Output is correct
54 Correct 13 ms 3852 KB Output is correct
55 Correct 15 ms 3852 KB Output is correct
56 Correct 15 ms 3852 KB Output is correct
57 Correct 33 ms 3852 KB Output is correct
58 Correct 19 ms 3852 KB Output is correct
59 Correct 19 ms 3852 KB Output is correct
60 Correct 20 ms 3852 KB Output is correct
61 Correct 11 ms 3852 KB Output is correct
62 Correct 10 ms 3852 KB Output is correct
63 Correct 10 ms 3852 KB Output is correct
64 Correct 11 ms 3852 KB Output is correct
65 Correct 12 ms 3852 KB Output is correct
66 Correct 15 ms 3852 KB Output is correct
67 Correct 14 ms 3852 KB Output is correct
68 Correct 10 ms 3852 KB Output is correct
69 Correct 11 ms 3852 KB Output is correct
70 Correct 11 ms 3852 KB Output is correct
71 Correct 11 ms 3852 KB Output is correct
72 Correct 20 ms 3852 KB Output is correct
73 Correct 20 ms 3852 KB Output is correct
74 Correct 12 ms 3852 KB Output is correct
75 Correct 11 ms 3852 KB Output is correct
76 Correct 11 ms 3852 KB Output is correct
77 Correct 12 ms 3852 KB Output is correct
78 Correct 13 ms 3852 KB Output is correct
79 Correct 12 ms 3852 KB Output is correct
80 Correct 9 ms 3852 KB Output is correct
81 Correct 11 ms 3852 KB Output is correct
82 Correct 12 ms 3852 KB Output is correct
83 Correct 11 ms 3852 KB Output is correct
84 Correct 10 ms 3852 KB Output is correct
85 Correct 11 ms 3852 KB Output is correct
86 Correct 15 ms 3852 KB Output is correct

Subtask #3
84.0 / 84.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 2808 KB Output is correct
2 Correct 4 ms 2808 KB Output is correct
3 Correct 4 ms 2992 KB Output is correct
4 Correct 4 ms 2992 KB Output is correct
5 Correct 5 ms 3072 KB Output is correct
6 Correct 5 ms 3072 KB Output is correct
7 Correct 5 ms 3072 KB Output is correct
8 Correct 5 ms 3072 KB Output is correct
9 Correct 5 ms 3164 KB Output is correct
10 Correct 4 ms 3164 KB Output is correct
11 Correct 4 ms 3164 KB Output is correct
12 Correct 4 ms 3164 KB Output is correct
13 Correct 6 ms 3164 KB Output is correct
14 Correct 5 ms 3164 KB Output is correct
15 Correct 6 ms 3164 KB Output is correct
16 Correct 6 ms 3164 KB Output is correct
17 Correct 7 ms 3164 KB Output is correct
18 Correct 7 ms 3164 KB Output is correct
19 Correct 6 ms 3164 KB Output is correct
20 Correct 7 ms 3164 KB Output is correct
21 Correct 6 ms 3164 KB Output is correct
22 Correct 7 ms 3164 KB Output is correct
23 Correct 7 ms 3164 KB Output is correct
24 Correct 7 ms 3164 KB Output is correct
25 Correct 7 ms 3164 KB Output is correct
26 Correct 5 ms 3164 KB Output is correct
27 Correct 4 ms 3164 KB Output is correct
28 Correct 6 ms 3164 KB Output is correct
29 Correct 5 ms 3164 KB Output is correct
30 Correct 5 ms 3164 KB Output is correct
31 Correct 11 ms 3164 KB Output is correct
32 Correct 6 ms 3184 KB Output is correct
33 Correct 6 ms 3184 KB Output is correct
34 Correct 5 ms 3184 KB Output is correct
35 Correct 6 ms 3184 KB Output is correct
36 Correct 6 ms 3184 KB Output is correct
37 Correct 5 ms 3184 KB Output is correct
38 Correct 6 ms 3184 KB Output is correct
39 Correct 5 ms 3184 KB Output is correct
40 Correct 5 ms 3184 KB Output is correct
41 Correct 5 ms 3184 KB Output is correct
42 Correct 5 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 7 ms 3196 KB Output is correct
46 Correct 14 ms 3580 KB Output is correct
47 Correct 14 ms 3584 KB Output is correct
48 Correct 13 ms 3596 KB Output is correct
49 Correct 9 ms 3724 KB Output is correct
50 Correct 9 ms 3728 KB Output is correct
51 Correct 10 ms 3852 KB Output is correct
52 Correct 13 ms 3852 KB Output is correct
53 Correct 13 ms 3852 KB Output is correct
54 Correct 13 ms 3852 KB Output is correct
55 Correct 15 ms 3852 KB Output is correct
56 Correct 15 ms 3852 KB Output is correct
57 Correct 33 ms 3852 KB Output is correct
58 Correct 19 ms 3852 KB Output is correct
59 Correct 19 ms 3852 KB Output is correct
60 Correct 20 ms 3852 KB Output is correct
61 Correct 11 ms 3852 KB Output is correct
62 Correct 10 ms 3852 KB Output is correct
63 Correct 10 ms 3852 KB Output is correct
64 Correct 11 ms 3852 KB Output is correct
65 Correct 12 ms 3852 KB Output is correct
66 Correct 15 ms 3852 KB Output is correct
67 Correct 14 ms 3852 KB Output is correct
68 Correct 10 ms 3852 KB Output is correct
69 Correct 11 ms 3852 KB Output is correct
70 Correct 11 ms 3852 KB Output is correct
71 Correct 11 ms 3852 KB Output is correct
72 Correct 20 ms 3852 KB Output is correct
73 Correct 20 ms 3852 KB Output is correct
74 Correct 12 ms 3852 KB Output is correct
75 Correct 11 ms 3852 KB Output is correct
76 Correct 11 ms 3852 KB Output is correct
77 Correct 12 ms 3852 KB Output is correct
78 Correct 13 ms 3852 KB Output is correct
79 Correct 12 ms 3852 KB Output is correct
80 Correct 9 ms 3852 KB Output is correct
81 Correct 11 ms 3852 KB Output is correct
82 Correct 12 ms 3852 KB Output is correct
83 Correct 11 ms 3852 KB Output is correct
84 Correct 10 ms 3852 KB Output is correct
85 Correct 11 ms 3852 KB Output is correct
86 Correct 15 ms 3852 KB Output is correct
87 Correct 31 ms 4412 KB Output is correct
88 Correct 132 ms 7116 KB Output is correct
89 Correct 657 ms 16048 KB Output is correct
90 Correct 744 ms 16072 KB Output is correct
91 Correct 611 ms 16072 KB Output is correct
92 Correct 341 ms 22260 KB Output is correct
93 Correct 348 ms 22260 KB Output is correct
94 Correct 349 ms 22260 KB Output is correct
95 Correct 467 ms 22260 KB Output is correct
96 Correct 325 ms 22260 KB Output is correct
97 Correct 336 ms 22260 KB Output is correct
98 Correct 336 ms 22260 KB Output is correct
99 Correct 326 ms 22260 KB Output is correct
100 Correct 876 ms 22260 KB Output is correct
101 Correct 1218 ms 22260 KB Output is correct
102 Correct 940 ms 22260 KB Output is correct
103 Correct 1335 ms 22260 KB Output is correct
104 Correct 355 ms 22260 KB Output is correct
105 Correct 418 ms 22260 KB Output is correct
106 Correct 330 ms 22260 KB Output is correct
107 Correct 410 ms 22260 KB Output is correct
108 Correct 422 ms 22260 KB Output is correct
109 Correct 509 ms 22260 KB Output is correct
110 Correct 273 ms 22260 KB Output is correct
111 Correct 336 ms 22260 KB Output is correct
112 Correct 249 ms 22260 KB Output is correct
113 Correct 324 ms 22260 KB Output is correct
114 Correct 1150 ms 22260 KB Output is correct
115 Correct 1027 ms 22260 KB Output is correct
116 Correct 419 ms 22260 KB Output is correct
117 Correct 261 ms 22260 KB Output is correct
118 Correct 257 ms 22260 KB Output is correct
119 Correct 257 ms 22260 KB Output is correct
120 Correct 238 ms 22260 KB Output is correct
121 Correct 261 ms 22260 KB Output is correct
122 Correct 258 ms 22260 KB Output is correct
123 Correct 336 ms 22260 KB Output is correct
124 Correct 376 ms 22260 KB Output is correct
125 Correct 321 ms 22260 KB Output is correct
126 Correct 398 ms 22260 KB Output is correct
127 Correct 306 ms 22260 KB Output is correct
128 Correct 308 ms 22260 KB Output is correct