답안 #204238

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
204238	2020-02-25T09:10:25 Z	theStaticMind	Construction of Highway (JOI18_construction)	C++14	16 / 100	2000 ms	16280 KB

construction

#include<bits/stdc++.h>
#define pb push_back
#define ii pair<int,int>
#define all(x) (x).begin(),(x).end()
#define sz(x) (int)(x).size()
#define INF 100000000000000000
#define modulo 1000000007
#define mod 998244353
#define int long long int
using namespace std;


struct Fenwick{
      vector<int> bit;
      int size;
      void modify(int j, int v){
            j++;
            for(; j < size; j += j & -j)bit[j] += v;
      }
      int query(int j){
            j++;
            int v = 0;
            for(; j > 0; j -= j & -j)v += bit[j];
            return v;
      }
      int rangequery(int a, int b){
            return query(b) - query(a - 1);
      }
      void rangeupdate(int a, int b, int v){
            modify(a, v);
            modify(b + 1, -v);
      }
      Fenwick(int s){
            s += 5;
            size = s;
            bit = vector<int>(s, 0);
      }
};

const int N = 1e5 + 5;

vector<int> adj[N];
vector<ii> Q;
vector<int> val(N);
vector<int> anc(N, 0);
vector<ii> W;


void dfs(int x, int pre){
	for(auto y : adj[x]){
		if(y == pre) continue;
		anc[y] = x;
		dfs(y, x);
	}
}

void query(int x){
	while(x != 0){
		W.pb({val[x], 1});
		x = anc[x];
	}
	reverse(all(W));
}
void update(int x, int v){
	while(x != 0){
		val[x] = v;
		x = anc[x];
	}
	reverse(all(W));
}

void compress(vector<ii>& arr){
	map<int,int> data;
	for(auto x : arr) data[x.first] = 0;
	int ind = sz(arr);
	for(auto& x : data)x.second = ind--;
	for(auto& x : arr) x.first = data[x.first];
}

int ans(vector<ii>& arr){
	compress(arr);
	Fenwick bit(sz(arr));
	int ret = 0;
	for(auto x : arr){
		ret += bit.query(x.first - 1);
		bit.modify(x.first, x.second);
	}
	return ret;
}

int32_t main(){
      ios_base::sync_with_stdio(false);
      cin.tie(NULL);
     	int n;
      cin >> n;
      for(int i = 1; i <= n; i++) cin >> val[i];
      for(int i = 0; i < n - 1; i++){
      	int x, y;
      	cin >> x >> y;
      	adj[x].pb(y);
      	adj[y].pb(x);
      	Q.pb({x, y});
      }
      dfs(1, 0);

      for(auto p : Q){
      	query(p.first);
      	cout << ans(W) << "\n";
      	W.clear();
      	update(p.second, val[p.second]);
      }
}

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	4216 KB	Output is correct
2	Correct	7 ms	4216 KB	Output is correct
3	Correct	7 ms	4216 KB	Output is correct
4	Correct	8 ms	4344 KB	Output is correct
5	Correct	8 ms	4344 KB	Output is correct
6	Correct	8 ms	4344 KB	Output is correct
7	Correct	8 ms	4344 KB	Output is correct
8	Correct	11 ms	4344 KB	Output is correct
9	Correct	12 ms	4344 KB	Output is correct
10	Correct	13 ms	4344 KB	Output is correct
11	Correct	10 ms	4344 KB	Output is correct
12	Correct	11 ms	4320 KB	Output is correct
13	Correct	10 ms	4344 KB	Output is correct
14	Correct	11 ms	4344 KB	Output is correct
15	Correct	9 ms	4344 KB	Output is correct
16	Correct	8 ms	4344 KB	Output is correct
17	Correct	8 ms	4344 KB	Output is correct
18	Correct	10 ms	4344 KB	Output is correct
19	Correct	10 ms	4344 KB	Output is correct
20	Correct	10 ms	4344 KB	Output is correct
21	Correct	10 ms	4344 KB	Output is correct
22	Correct	9 ms	4344 KB	Output is correct
23	Correct	9 ms	4344 KB	Output is correct
24	Correct	8 ms	4344 KB	Output is correct
25	Correct	8 ms	4344 KB	Output is correct
26	Correct	12 ms	4344 KB	Output is correct
27	Correct	10 ms	4344 KB	Output is correct
28	Correct	11 ms	4344 KB	Output is correct
29	Correct	11 ms	4344 KB	Output is correct
30	Correct	8 ms	4344 KB	Output is correct
31	Correct	8 ms	4348 KB	Output is correct
32	Correct	10 ms	4344 KB	Output is correct
33	Correct	9 ms	4344 KB	Output is correct
34	Correct	8 ms	4344 KB	Output is correct
35	Correct	8 ms	4344 KB	Output is correct
36	Correct	9 ms	4344 KB	Output is correct
37	Correct	9 ms	4344 KB	Output is correct
38	Correct	9 ms	4344 KB	Output is correct
39	Correct	9 ms	4344 KB	Output is correct
40	Correct	9 ms	4344 KB	Output is correct
41	Correct	8 ms	4344 KB	Output is correct
42	Correct	9 ms	4344 KB	Output is correct
43	Correct	8 ms	4344 KB	Output is correct
44	Correct	8 ms	4216 KB	Output is correct

Subtask #2
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	4216 KB	Output is correct
2	Correct	7 ms	4216 KB	Output is correct
3	Correct	7 ms	4216 KB	Output is correct
4	Correct	8 ms	4344 KB	Output is correct
5	Correct	8 ms	4344 KB	Output is correct
6	Correct	8 ms	4344 KB	Output is correct
7	Correct	8 ms	4344 KB	Output is correct
8	Correct	11 ms	4344 KB	Output is correct
9	Correct	12 ms	4344 KB	Output is correct
10	Correct	13 ms	4344 KB	Output is correct
11	Correct	10 ms	4344 KB	Output is correct
12	Correct	11 ms	4320 KB	Output is correct
13	Correct	10 ms	4344 KB	Output is correct
14	Correct	11 ms	4344 KB	Output is correct
15	Correct	9 ms	4344 KB	Output is correct
16	Correct	8 ms	4344 KB	Output is correct
17	Correct	8 ms	4344 KB	Output is correct
18	Correct	10 ms	4344 KB	Output is correct
19	Correct	10 ms	4344 KB	Output is correct
20	Correct	10 ms	4344 KB	Output is correct
21	Correct	10 ms	4344 KB	Output is correct
22	Correct	9 ms	4344 KB	Output is correct
23	Correct	9 ms	4344 KB	Output is correct
24	Correct	8 ms	4344 KB	Output is correct
25	Correct	8 ms	4344 KB	Output is correct
26	Correct	12 ms	4344 KB	Output is correct
27	Correct	10 ms	4344 KB	Output is correct
28	Correct	11 ms	4344 KB	Output is correct
29	Correct	11 ms	4344 KB	Output is correct
30	Correct	8 ms	4344 KB	Output is correct
31	Correct	8 ms	4348 KB	Output is correct
32	Correct	10 ms	4344 KB	Output is correct
33	Correct	9 ms	4344 KB	Output is correct
34	Correct	8 ms	4344 KB	Output is correct
35	Correct	8 ms	4344 KB	Output is correct
36	Correct	9 ms	4344 KB	Output is correct
37	Correct	9 ms	4344 KB	Output is correct
38	Correct	9 ms	4344 KB	Output is correct
39	Correct	9 ms	4344 KB	Output is correct
40	Correct	9 ms	4344 KB	Output is correct
41	Correct	8 ms	4344 KB	Output is correct
42	Correct	9 ms	4344 KB	Output is correct
43	Correct	8 ms	4344 KB	Output is correct
44	Correct	8 ms	4216 KB	Output is correct
45	Correct	8 ms	4344 KB	Output is correct
46	Correct	13 ms	4600 KB	Output is correct
47	Correct	13 ms	4600 KB	Output is correct
48	Correct	13 ms	4600 KB	Output is correct
49	Correct	286 ms	5112 KB	Output is correct
50	Correct	281 ms	4860 KB	Output is correct
51	Correct	276 ms	4856 KB	Output is correct
52	Correct	151 ms	4832 KB	Output is correct
53	Correct	136 ms	4856 KB	Output is correct
54	Correct	150 ms	4856 KB	Output is correct
55	Correct	139 ms	4856 KB	Output is correct
56	Correct	145 ms	4728 KB	Output is correct
57	Correct	18 ms	4600 KB	Output is correct
58	Correct	21 ms	4600 KB	Output is correct
59	Correct	16 ms	4600 KB	Output is correct
60	Correct	16 ms	4600 KB	Output is correct
61	Correct	143 ms	4772 KB	Output is correct
62	Correct	144 ms	4728 KB	Output is correct
63	Correct	141 ms	4856 KB	Output is correct
64	Correct	11 ms	4600 KB	Output is correct
65	Correct	12 ms	4600 KB	Output is correct
66	Correct	12 ms	4600 KB	Output is correct
67	Correct	12 ms	4600 KB	Output is correct
68	Correct	273 ms	4940 KB	Output is correct
69	Correct	140 ms	4732 KB	Output is correct
70	Correct	135 ms	4728 KB	Output is correct
71	Correct	139 ms	4808 KB	Output is correct
72	Correct	14 ms	4600 KB	Output is correct
73	Correct	15 ms	4600 KB	Output is correct
74	Correct	147 ms	4732 KB	Output is correct
75	Correct	79 ms	4728 KB	Output is correct
76	Correct	52 ms	4600 KB	Output is correct
77	Correct	43 ms	4600 KB	Output is correct
78	Correct	74 ms	4600 KB	Output is correct
79	Correct	53 ms	4600 KB	Output is correct
80	Correct	44 ms	4600 KB	Output is correct
81	Correct	78 ms	4728 KB	Output is correct
82	Correct	57 ms	4600 KB	Output is correct
83	Correct	44 ms	4600 KB	Output is correct
84	Correct	76 ms	4600 KB	Output is correct
85	Correct	56 ms	4644 KB	Output is correct
86	Correct	44 ms	4600 KB	Output is correct

Subtask #3
0 / 84.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	4216 KB	Output is correct
2	Correct	7 ms	4216 KB	Output is correct
3	Correct	7 ms	4216 KB	Output is correct
4	Correct	8 ms	4344 KB	Output is correct
5	Correct	8 ms	4344 KB	Output is correct
6	Correct	8 ms	4344 KB	Output is correct
7	Correct	8 ms	4344 KB	Output is correct
8	Correct	11 ms	4344 KB	Output is correct
9	Correct	12 ms	4344 KB	Output is correct
10	Correct	13 ms	4344 KB	Output is correct
11	Correct	10 ms	4344 KB	Output is correct
12	Correct	11 ms	4320 KB	Output is correct
13	Correct	10 ms	4344 KB	Output is correct
14	Correct	11 ms	4344 KB	Output is correct
15	Correct	9 ms	4344 KB	Output is correct
16	Correct	8 ms	4344 KB	Output is correct
17	Correct	8 ms	4344 KB	Output is correct
18	Correct	10 ms	4344 KB	Output is correct
19	Correct	10 ms	4344 KB	Output is correct
20	Correct	10 ms	4344 KB	Output is correct
21	Correct	10 ms	4344 KB	Output is correct
22	Correct	9 ms	4344 KB	Output is correct
23	Correct	9 ms	4344 KB	Output is correct
24	Correct	8 ms	4344 KB	Output is correct
25	Correct	8 ms	4344 KB	Output is correct
26	Correct	12 ms	4344 KB	Output is correct
27	Correct	10 ms	4344 KB	Output is correct
28	Correct	11 ms	4344 KB	Output is correct
29	Correct	11 ms	4344 KB	Output is correct
30	Correct	8 ms	4344 KB	Output is correct
31	Correct	8 ms	4348 KB	Output is correct
32	Correct	10 ms	4344 KB	Output is correct
33	Correct	9 ms	4344 KB	Output is correct
34	Correct	8 ms	4344 KB	Output is correct
35	Correct	8 ms	4344 KB	Output is correct
36	Correct	9 ms	4344 KB	Output is correct
37	Correct	9 ms	4344 KB	Output is correct
38	Correct	9 ms	4344 KB	Output is correct
39	Correct	9 ms	4344 KB	Output is correct
40	Correct	9 ms	4344 KB	Output is correct
41	Correct	8 ms	4344 KB	Output is correct
42	Correct	9 ms	4344 KB	Output is correct
43	Correct	8 ms	4344 KB	Output is correct
44	Correct	8 ms	4216 KB	Output is correct
45	Correct	8 ms	4344 KB	Output is correct
46	Correct	13 ms	4600 KB	Output is correct
47	Correct	13 ms	4600 KB	Output is correct
48	Correct	13 ms	4600 KB	Output is correct
49	Correct	286 ms	5112 KB	Output is correct
50	Correct	281 ms	4860 KB	Output is correct
51	Correct	276 ms	4856 KB	Output is correct
52	Correct	151 ms	4832 KB	Output is correct
53	Correct	136 ms	4856 KB	Output is correct
54	Correct	150 ms	4856 KB	Output is correct
55	Correct	139 ms	4856 KB	Output is correct
56	Correct	145 ms	4728 KB	Output is correct
57	Correct	18 ms	4600 KB	Output is correct
58	Correct	21 ms	4600 KB	Output is correct
59	Correct	16 ms	4600 KB	Output is correct
60	Correct	16 ms	4600 KB	Output is correct
61	Correct	143 ms	4772 KB	Output is correct
62	Correct	144 ms	4728 KB	Output is correct
63	Correct	141 ms	4856 KB	Output is correct
64	Correct	11 ms	4600 KB	Output is correct
65	Correct	12 ms	4600 KB	Output is correct
66	Correct	12 ms	4600 KB	Output is correct
67	Correct	12 ms	4600 KB	Output is correct
68	Correct	273 ms	4940 KB	Output is correct
69	Correct	140 ms	4732 KB	Output is correct
70	Correct	135 ms	4728 KB	Output is correct
71	Correct	139 ms	4808 KB	Output is correct
72	Correct	14 ms	4600 KB	Output is correct
73	Correct	15 ms	4600 KB	Output is correct
74	Correct	147 ms	4732 KB	Output is correct
75	Correct	79 ms	4728 KB	Output is correct
76	Correct	52 ms	4600 KB	Output is correct
77	Correct	43 ms	4600 KB	Output is correct
78	Correct	74 ms	4600 KB	Output is correct
79	Correct	53 ms	4600 KB	Output is correct
80	Correct	44 ms	4600 KB	Output is correct
81	Correct	78 ms	4728 KB	Output is correct
82	Correct	57 ms	4600 KB	Output is correct
83	Correct	44 ms	4600 KB	Output is correct
84	Correct	76 ms	4600 KB	Output is correct
85	Correct	56 ms	4644 KB	Output is correct
86	Correct	44 ms	4600 KB	Output is correct
87	Correct	23 ms	4984 KB	Output is correct
88	Correct	58 ms	6512 KB	Output is correct
89	Correct	209 ms	12008 KB	Output is correct
90	Correct	215 ms	12008 KB	Output is correct
91	Correct	229 ms	11984 KB	Output is correct
92	Execution timed out	2049 ms	16280 KB	Time limit exceeded
93	Halted	0 ms	0 KB	-

답안 #204238

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 9.0 / 9.0

Subtask #3 0 / 84.0

Subtask #1
7.0 / 7.0

Subtask #2
9.0 / 9.0

Subtask #3
0 / 84.0