oj.uz

Submission #92092

# Submission time Handle Problem Language Result Execution time Memory
92092 2019-01-01T13:30:37 Z maruii Construction of Highway (JOI18_construction) C++17
100 / 100
 799 ms 22204 KB 
#include<bits/stdc++.h>
using namespace std;
const int MAXN = 1000001;
const int SIZE = 1<<17;
#define ff first
#define ss second
int A[MAXN], B[MAXN], C[MAXN], dth[MAXN], prt[17][MAXN], dfn[MAXN], edfn[MAXN], dfnn;
vector<int> edge[100001];
void dfs(int x){
	dfn[x] = ++dfnn;
	for(auto &i: edge[x]){
		prt[0][i] = x;
		dth[i] = dth[x]+1;
		dfs(i);
	}
	edfn[x] = dfnn;
}
struct ST{
	int data[2*SIZE];
	void update(int x, int v){
		for(x+=SIZE; x; x>>=1)
			data[x] = max(data[x], v);
	}
	int query(int s, int e){
		int ret = 0;
		for(s+=SIZE, e+=SIZE; s<=e; s>>=1, e>>=1){
			if(s&1) ret = max(ret, data[s++]);
			if(~e&1) ret = max(ret, data[e--]);
		}
		return ret;
	}
	int lb(int x, int v){
		for(x+=SIZE; data[x]<=v; x=(x-1)/2);
		for(; x<SIZE; x = x<<1|(data[x<<1|1]>v));
		return x-SIZE;
	}
	int rb(int x, int v){
		for(x+=SIZE; data[x]<=v; x=(x+1)/2);
		for(; x<SIZE; x = (x<<1|1)-(data[x<<1]>v));
		return x-SIZE;
	}
} seg;
struct BIT{
	int data[SIZE+1];
	void update(int x, int v){
		for(; x<=SIZE; x+=x&-x) data[x] += v;
	}
	int query(int x){
		int ret=0;
		for(; x; x-=x&-x) ret+= data[x];
		return ret;
	}
} bit;
vector<int> cc;
int main(){
	int N;
	scanf("%d",&N);
	for(int i=1; i<=N; ++i) scanf("%d",C+i), cc.push_back(C[i]);
	sort(cc.begin(), cc.end());
	cc.erase(unique(cc.begin(), cc.end()), cc.end());
	for(int i=1; i<=N; ++i) C[i] = lower_bound(cc.begin(), cc.end(), C[i])-cc.begin()+1;
	for(int i=1; i<N; ++i){
		scanf("%d%d",A+i,B+i);
		edge[A[i]].push_back(B[i]);
	}
	dth[1] = 1;
	dfs(1);
	for(int i=1; i<17; ++i)for(int j=1; j<=N; ++j) prt[i][j] = prt[i-1][prt[i-1][j]];
	seg.update(0, 1e9); seg.update(N+1, 1e9); seg.update(1,1);
	for(int i=1; i<N; ++i){
		int x = A[i];
		long long ans = 0;
		vector<pair<int, int> > vec;
		while(x){
			int t = seg.query(dfn[x], edfn[x]);
			int l = seg.lb(dfn[x], t), r = seg.rb(edfn[x], t);
			int y = x;
			for(int j=16; j>=0; --j) if(l<dfn[prt[j][x]] && r>edfn[prt[j][x]]) x = prt[j][x];
			x = prt[0][x];
			vec.push_back({C[B[t]], dth[y]-dth[x]});
		}
		for(auto &i: vec){
			ans += 1ll*bit.query(i.ff-1)*i.ss;
			bit.update(i.ff, i.ss);
		}
		printf("%lld\n",ans);
		for(auto &i: vec) bit.update(i.ff, -i.ss);
		seg.update(dfn[B[i]], i);
	}
	return 0;
}

Compilation message

construction.cpp: In function 'int main()':
construction.cpp:57:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&N);
  ~~~~~^~~~~~~~~
construction.cpp:58:41: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1; i<=N; ++i) scanf("%d",C+i), cc.push_back(C[i]);
                          ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
construction.cpp:63:8: 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 2936 KB Output is correct
2 Correct 3 ms 2936 KB Output is correct
3 Correct 4 ms 2936 KB Output is correct
4 Correct 4 ms 2936 KB Output is correct
5 Correct 4 ms 3064 KB Output is correct
6 Correct 4 ms 2936 KB Output is correct
7 Correct 4 ms 3064 KB Output is correct
8 Correct 4 ms 2936 KB Output is correct
9 Correct 4 ms 3064 KB Output is correct
10 Correct 4 ms 3064 KB Output is correct
11 Correct 4 ms 3068 KB Output is correct
12 Correct 4 ms 3064 KB Output is correct
13 Correct 4 ms 3068 KB Output is correct
14 Correct 4 ms 3064 KB Output is correct
15 Correct 4 ms 2972 KB Output is correct
16 Correct 4 ms 2936 KB Output is correct
17 Correct 4 ms 2936 KB Output is correct
18 Correct 7 ms 2936 KB Output is correct
19 Correct 4 ms 2936 KB Output is correct
20 Correct 4 ms 3064 KB Output is correct
21 Correct 4 ms 3064 KB Output is correct
22 Correct 4 ms 2936 KB Output is correct
23 Correct 5 ms 3064 KB Output is correct
24 Correct 4 ms 3064 KB Output is correct
25 Correct 4 ms 3064 KB Output is correct
26 Correct 4 ms 3064 KB Output is correct
27 Correct 4 ms 3064 KB Output is correct
28 Correct 4 ms 2936 KB Output is correct
29 Correct 4 ms 2936 KB Output is correct
30 Correct 5 ms 2936 KB Output is correct
31 Correct 5 ms 3064 KB Output is correct
32 Correct 4 ms 2936 KB Output is correct
33 Correct 4 ms 2908 KB Output is correct
34 Correct 4 ms 2936 KB Output is correct
35 Correct 5 ms 2936 KB Output is correct
36 Correct 4 ms 2936 KB Output is correct
37 Correct 4 ms 2936 KB Output is correct
38 Correct 4 ms 2936 KB Output is correct
39 Correct 4 ms 2936 KB Output is correct
40 Correct 4 ms 2936 KB Output is correct
41 Correct 5 ms 2936 KB Output is correct
42 Correct 4 ms 3064 KB Output is correct
43 Correct 4 ms 2936 KB Output is correct
44 Correct 4 ms 2936 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 2936 KB Output is correct
2 Correct 3 ms 2936 KB Output is correct
3 Correct 4 ms 2936 KB Output is correct
4 Correct 4 ms 2936 KB Output is correct
5 Correct 4 ms 3064 KB Output is correct
6 Correct 4 ms 2936 KB Output is correct
7 Correct 4 ms 3064 KB Output is correct
8 Correct 4 ms 2936 KB Output is correct
9 Correct 4 ms 3064 KB Output is correct
10 Correct 4 ms 3064 KB Output is correct
11 Correct 4 ms 3068 KB Output is correct
12 Correct 4 ms 3064 KB Output is correct
13 Correct 4 ms 3068 KB Output is correct
14 Correct 4 ms 3064 KB Output is correct
15 Correct 4 ms 2972 KB Output is correct
16 Correct 4 ms 2936 KB Output is correct
17 Correct 4 ms 2936 KB Output is correct
18 Correct 7 ms 2936 KB Output is correct
19 Correct 4 ms 2936 KB Output is correct
20 Correct 4 ms 3064 KB Output is correct
21 Correct 4 ms 3064 KB Output is correct
22 Correct 4 ms 2936 KB Output is correct
23 Correct 5 ms 3064 KB Output is correct
24 Correct 4 ms 3064 KB Output is correct
25 Correct 4 ms 3064 KB Output is correct
26 Correct 4 ms 3064 KB Output is correct
27 Correct 4 ms 3064 KB Output is correct
28 Correct 4 ms 2936 KB Output is correct
29 Correct 4 ms 2936 KB Output is correct
30 Correct 5 ms 2936 KB Output is correct
31 Correct 5 ms 3064 KB Output is correct
32 Correct 4 ms 2936 KB Output is correct
33 Correct 4 ms 2908 KB Output is correct
34 Correct 4 ms 2936 KB Output is correct
35 Correct 5 ms 2936 KB Output is correct
36 Correct 4 ms 2936 KB Output is correct
37 Correct 4 ms 2936 KB Output is correct
38 Correct 4 ms 2936 KB Output is correct
39 Correct 4 ms 2936 KB Output is correct
40 Correct 4 ms 2936 KB Output is correct
41 Correct 5 ms 2936 KB Output is correct
42 Correct 4 ms 3064 KB Output is correct
43 Correct 4 ms 2936 KB Output is correct
44 Correct 4 ms 2936 KB Output is correct
45 Correct 5 ms 3064 KB Output is correct
46 Correct 11 ms 3448 KB Output is correct
47 Correct 11 ms 3448 KB Output is correct
48 Correct 11 ms 3448 KB Output is correct
49 Correct 8 ms 3704 KB Output is correct
50 Correct 8 ms 3704 KB Output is correct
51 Correct 8 ms 3704 KB Output is correct
52 Correct 9 ms 3576 KB Output is correct
53 Correct 9 ms 3704 KB Output is correct
54 Correct 9 ms 3576 KB Output is correct
55 Correct 9 ms 3576 KB Output is correct
56 Correct 9 ms 3576 KB Output is correct
57 Correct 15 ms 3448 KB Output is correct
58 Correct 16 ms 3448 KB Output is correct
59 Correct 15 ms 3452 KB Output is correct
60 Correct 15 ms 3448 KB Output is correct
61 Correct 9 ms 3576 KB Output is correct
62 Correct 9 ms 3576 KB Output is correct
63 Correct 9 ms 3576 KB Output is correct
64 Correct 11 ms 3448 KB Output is correct
65 Correct 11 ms 3448 KB Output is correct
66 Correct 12 ms 3448 KB Output is correct
67 Correct 11 ms 3576 KB Output is correct
68 Correct 8 ms 3704 KB Output is correct
69 Correct 9 ms 3576 KB Output is correct
70 Correct 9 ms 3576 KB Output is correct
71 Correct 9 ms 3576 KB Output is correct
72 Correct 15 ms 3448 KB Output is correct
73 Correct 15 ms 3448 KB Output is correct
74 Correct 10 ms 3448 KB Output is correct
75 Correct 9 ms 3528 KB Output is correct
76 Correct 9 ms 3448 KB Output is correct
77 Correct 9 ms 3448 KB Output is correct
78 Correct 8 ms 3448 KB Output is correct
79 Correct 9 ms 3448 KB Output is correct
80 Correct 9 ms 3448 KB Output is correct
81 Correct 10 ms 3448 KB Output is correct
82 Correct 10 ms 3448 KB Output is correct
83 Correct 10 ms 3448 KB Output is correct
84 Correct 9 ms 3448 KB Output is correct
85 Correct 9 ms 3448 KB Output is correct
86 Correct 9 ms 3448 KB Output is correct

Subtask #3
84.0 / 84.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 2936 KB Output is correct
2 Correct 3 ms 2936 KB Output is correct
3 Correct 4 ms 2936 KB Output is correct
4 Correct 4 ms 2936 KB Output is correct
5 Correct 4 ms 3064 KB Output is correct
6 Correct 4 ms 2936 KB Output is correct
7 Correct 4 ms 3064 KB Output is correct
8 Correct 4 ms 2936 KB Output is correct
9 Correct 4 ms 3064 KB Output is correct
10 Correct 4 ms 3064 KB Output is correct
11 Correct 4 ms 3068 KB Output is correct
12 Correct 4 ms 3064 KB Output is correct
13 Correct 4 ms 3068 KB Output is correct
14 Correct 4 ms 3064 KB Output is correct
15 Correct 4 ms 2972 KB Output is correct
16 Correct 4 ms 2936 KB Output is correct
17 Correct 4 ms 2936 KB Output is correct
18 Correct 7 ms 2936 KB Output is correct
19 Correct 4 ms 2936 KB Output is correct
20 Correct 4 ms 3064 KB Output is correct
21 Correct 4 ms 3064 KB Output is correct
22 Correct 4 ms 2936 KB Output is correct
23 Correct 5 ms 3064 KB Output is correct
24 Correct 4 ms 3064 KB Output is correct
25 Correct 4 ms 3064 KB Output is correct
26 Correct 4 ms 3064 KB Output is correct
27 Correct 4 ms 3064 KB Output is correct
28 Correct 4 ms 2936 KB Output is correct
29 Correct 4 ms 2936 KB Output is correct
30 Correct 5 ms 2936 KB Output is correct
31 Correct 5 ms 3064 KB Output is correct
32 Correct 4 ms 2936 KB Output is correct
33 Correct 4 ms 2908 KB Output is correct
34 Correct 4 ms 2936 KB Output is correct
35 Correct 5 ms 2936 KB Output is correct
36 Correct 4 ms 2936 KB Output is correct
37 Correct 4 ms 2936 KB Output is correct
38 Correct 4 ms 2936 KB Output is correct
39 Correct 4 ms 2936 KB Output is correct
40 Correct 4 ms 2936 KB Output is correct
41 Correct 5 ms 2936 KB Output is correct
42 Correct 4 ms 3064 KB Output is correct
43 Correct 4 ms 2936 KB Output is correct
44 Correct 4 ms 2936 KB Output is correct
45 Correct 5 ms 3064 KB Output is correct
46 Correct 11 ms 3448 KB Output is correct
47 Correct 11 ms 3448 KB Output is correct
48 Correct 11 ms 3448 KB Output is correct
49 Correct 8 ms 3704 KB Output is correct
50 Correct 8 ms 3704 KB Output is correct
51 Correct 8 ms 3704 KB Output is correct
52 Correct 9 ms 3576 KB Output is correct
53 Correct 9 ms 3704 KB Output is correct
54 Correct 9 ms 3576 KB Output is correct
55 Correct 9 ms 3576 KB Output is correct
56 Correct 9 ms 3576 KB Output is correct
57 Correct 15 ms 3448 KB Output is correct
58 Correct 16 ms 3448 KB Output is correct
59 Correct 15 ms 3452 KB Output is correct
60 Correct 15 ms 3448 KB Output is correct
61 Correct 9 ms 3576 KB Output is correct
62 Correct 9 ms 3576 KB Output is correct
63 Correct 9 ms 3576 KB Output is correct
64 Correct 11 ms 3448 KB Output is correct
65 Correct 11 ms 3448 KB Output is correct
66 Correct 12 ms 3448 KB Output is correct
67 Correct 11 ms 3576 KB Output is correct
68 Correct 8 ms 3704 KB Output is correct
69 Correct 9 ms 3576 KB Output is correct
70 Correct 9 ms 3576 KB Output is correct
71 Correct 9 ms 3576 KB Output is correct
72 Correct 15 ms 3448 KB Output is correct
73 Correct 15 ms 3448 KB Output is correct
74 Correct 10 ms 3448 KB Output is correct
75 Correct 9 ms 3528 KB Output is correct
76 Correct 9 ms 3448 KB Output is correct
77 Correct 9 ms 3448 KB Output is correct
78 Correct 8 ms 3448 KB Output is correct
79 Correct 9 ms 3448 KB Output is correct
80 Correct 9 ms 3448 KB Output is correct
81 Correct 10 ms 3448 KB Output is correct
82 Correct 10 ms 3448 KB Output is correct
83 Correct 10 ms 3448 KB Output is correct
84 Correct 9 ms 3448 KB Output is correct
85 Correct 9 ms 3448 KB Output is correct
86 Correct 9 ms 3448 KB Output is correct
87 Correct 26 ms 4344 KB Output is correct
88 Correct 85 ms 7288 KB Output is correct
89 Correct 432 ms 16084 KB Output is correct
90 Correct 409 ms 15984 KB Output is correct
91 Correct 445 ms 16184 KB Output is correct
92 Correct 180 ms 22128 KB Output is correct
93 Correct 179 ms 22124 KB Output is correct
94 Correct 198 ms 22204 KB Output is correct
95 Correct 304 ms 19024 KB Output is correct
96 Correct 299 ms 18928 KB Output is correct
97 Correct 308 ms 18928 KB Output is correct
98 Correct 304 ms 18920 KB Output is correct
99 Correct 302 ms 18496 KB Output is correct
100 Correct 702 ms 16728 KB Output is correct
101 Correct 799 ms 16724 KB Output is correct
102 Correct 781 ms 16476 KB Output is correct
103 Correct 778 ms 16412 KB Output is correct
104 Correct 297 ms 18312 KB Output is correct
105 Correct 293 ms 18432 KB Output is correct
106 Correct 327 ms 18364 KB Output is correct
107 Correct 364 ms 15616 KB Output is correct
108 Correct 373 ms 15636 KB Output is correct
109 Correct 451 ms 15788 KB Output is correct
110 Correct 173 ms 21740 KB Output is correct
111 Correct 328 ms 18980 KB Output is correct
112 Correct 317 ms 18520 KB Output is correct
113 Correct 318 ms 18012 KB Output is correct
114 Correct 788 ms 16528 KB Output is correct
115 Correct 724 ms 16092 KB Output is correct
116 Correct 313 ms 17920 KB Output is correct
117 Correct 312 ms 17272 KB Output is correct
118 Correct 279 ms 16784 KB Output is correct
119 Correct 278 ms 16512 KB Output is correct
120 Correct 305 ms 16736 KB Output is correct
121 Correct 282 ms 16340 KB Output is correct
122 Correct 288 ms 16040 KB Output is correct
123 Correct 317 ms 16896 KB Output is correct
124 Correct 287 ms 16424 KB Output is correct
125 Correct 280 ms 16056 KB Output is correct
126 Correct 274 ms 16352 KB Output is correct
127 Correct 269 ms 15968 KB Output is correct
128 Correct 267 ms 15768 KB Output is correct