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답안 #42293

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
42293 2018-02-25T15:06:38 Z minhtung0404 Birthday gift (IZhO18_treearray) C++14
56 / 100
 1511 ms 262144 KB 
//https://oj.uz/problem/view/IZhO18_treearray

#include<bits/stdc++.h>
const int N = 2e5 + 5;
using namespace std;

vector <int> adj[N];
set <int> ans[2][N];

int n, m, q, a[N], p[N][20], d[N];

void dfs(int u){
    for (int i = 0; i < (int)adj[u].size(); i++){
        int v = adj[u][i];
        if (v == p[u][0]) continue;
        d[v] = d[u] + 1; p[v][0] = u;
        dfs(v);
    }
}

int lca(int u, int v){
    if (d[u] < d[v]) swap(u, v);
    for (int i = 19; i >= 0; i--) if (d[u] - (1 << i) >= d[v]) u = p[u][i];
    for (int i = 19; i >= 0; i--) if (p[u][i] != p[v][i]) u = p[u][i], v = p[v][i];
    return ((u != v) ? p[u][0] : u);
}

int main(){
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    cin >> n >> m >> q;
    for (int i = 2; i <= n; i++){
        int u, v; cin >> u >> v;
        adj[u].push_back(v); adj[v].push_back(u);
    }
    dfs(1);
    for (int i = 1; i < 20; i++) for (int j = 1; j <= n; j++) p[j][i] = p[p[j][i-1]][i-1];
    for (int i = 1; i <= m; i++) cin >> a[i];
    for (int i = 1; i <= m; i++) ans[0][a[i]].insert(i);
    for (int i = 1; i <  m; i++) ans[1][lca(a[i], a[i+1])].insert(i);
    while (q--){
        int type;
        cin >> type;
        if (type == 1){
            int pos, v;
            cin >> pos >> v;
            ans[0][a[pos]].erase(pos);
            if (pos > 1) ans[1][lca(a[pos-1], a[pos])].erase(pos-1);
            if (pos < n) ans[1][lca(a[pos], a[pos+1])].erase(pos);
            a[pos] = v;
            ans[0][a[pos]].insert(pos);
            if (pos > 1) ans[1][lca(a[pos-1], a[pos])].insert(pos-1);
            if (pos < n) ans[1][lca(a[pos], a[pos+1])].insert(pos);
        }
        else{
            int l, r, v;
            cin >> l >> r >> v;
            set <int> ::iterator it = ans[0][v].lower_bound(l);
            if (it != ans[0][v].end() && *it <= r) {
                cout << *it << " " << *it << "\n";
                continue;
            }
            it = ans[1][v].lower_bound(l);
            if (it != ans[1][v].end() && *it < r){
                cout << *it << " " << (*it)+1 << "\n";
                continue;
            }
            cout << "-1 -1\n";
        }
    }
}

Subtask #1
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 23800 KB n=5
2 Correct 21 ms 23908 KB n=100
3 Correct 20 ms 24076 KB n=100
4 Correct 20 ms 24136 KB n=100
5 Correct 24 ms 24136 KB n=100
6 Correct 19 ms 24176 KB n=100
7 Correct 23 ms 24228 KB n=100
8 Correct 20 ms 24228 KB n=100
9 Correct 20 ms 24228 KB n=100
10 Correct 20 ms 24228 KB n=100
11 Correct 21 ms 24228 KB n=100
12 Correct 20 ms 24296 KB n=100
13 Correct 19 ms 24296 KB n=100
14 Correct 21 ms 24296 KB n=100
15 Correct 19 ms 24296 KB n=100
16 Correct 22 ms 24296 KB n=100
17 Correct 20 ms 24296 KB n=100
18 Correct 19 ms 24296 KB n=100
19 Correct 21 ms 24296 KB n=100
20 Correct 22 ms 24296 KB n=100
21 Correct 23 ms 24332 KB n=100
22 Correct 22 ms 24332 KB n=100
23 Correct 21 ms 24332 KB n=100
24 Correct 22 ms 24332 KB n=100
25 Correct 19 ms 24332 KB n=100
26 Correct 20 ms 24332 KB n=12
27 Correct 22 ms 24332 KB n=100

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 23800 KB n=5
2 Correct 21 ms 23908 KB n=100
3 Correct 20 ms 24076 KB n=100
4 Correct 20 ms 24136 KB n=100
5 Correct 24 ms 24136 KB n=100
6 Correct 19 ms 24176 KB n=100
7 Correct 23 ms 24228 KB n=100
8 Correct 20 ms 24228 KB n=100
9 Correct 20 ms 24228 KB n=100
10 Correct 20 ms 24228 KB n=100
11 Correct 21 ms 24228 KB n=100
12 Correct 20 ms 24296 KB n=100
13 Correct 19 ms 24296 KB n=100
14 Correct 21 ms 24296 KB n=100
15 Correct 19 ms 24296 KB n=100
16 Correct 22 ms 24296 KB n=100
17 Correct 20 ms 24296 KB n=100
18 Correct 19 ms 24296 KB n=100
19 Correct 21 ms 24296 KB n=100
20 Correct 22 ms 24296 KB n=100
21 Correct 23 ms 24332 KB n=100
22 Correct 22 ms 24332 KB n=100
23 Correct 21 ms 24332 KB n=100
24 Correct 22 ms 24332 KB n=100
25 Correct 19 ms 24332 KB n=100
26 Correct 20 ms 24332 KB n=12
27 Correct 22 ms 24332 KB n=100
28 Correct 21 ms 24360 KB n=500
29 Correct 20 ms 24372 KB n=500
30 Correct 21 ms 24392 KB n=500
31 Correct 21 ms 24404 KB n=500
32 Correct 23 ms 24420 KB n=500
33 Correct 21 ms 24432 KB n=500
34 Correct 20 ms 24448 KB n=500
35 Correct 20 ms 24464 KB n=500
36 Correct 20 ms 24480 KB n=500
37 Correct 20 ms 24560 KB n=500
38 Correct 21 ms 24560 KB n=500
39 Correct 21 ms 24560 KB n=500
40 Correct 20 ms 24560 KB n=500
41 Correct 22 ms 24560 KB n=500
42 Correct 21 ms 24560 KB n=500
43 Correct 20 ms 24572 KB n=500
44 Correct 21 ms 24584 KB n=500
45 Correct 20 ms 24596 KB n=500
46 Correct 21 ms 24608 KB n=500
47 Correct 21 ms 24624 KB n=500
48 Correct 26 ms 24644 KB n=500
49 Correct 21 ms 24656 KB n=500
50 Correct 22 ms 24800 KB n=500
51 Correct 21 ms 24800 KB n=500
52 Correct 21 ms 24800 KB n=500
53 Correct 20 ms 24800 KB n=500
54 Correct 20 ms 24800 KB n=500
55 Correct 19 ms 24800 KB n=278
56 Correct 20 ms 24800 KB n=500
57 Correct 21 ms 24800 KB n=500
58 Correct 21 ms 24800 KB n=500

Subtask #3
26.0 / 26.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 23800 KB n=5
2 Correct 21 ms 23908 KB n=100
3 Correct 20 ms 24076 KB n=100
4 Correct 20 ms 24136 KB n=100
5 Correct 24 ms 24136 KB n=100
6 Correct 19 ms 24176 KB n=100
7 Correct 23 ms 24228 KB n=100
8 Correct 20 ms 24228 KB n=100
9 Correct 20 ms 24228 KB n=100
10 Correct 20 ms 24228 KB n=100
11 Correct 21 ms 24228 KB n=100
12 Correct 20 ms 24296 KB n=100
13 Correct 19 ms 24296 KB n=100
14 Correct 21 ms 24296 KB n=100
15 Correct 19 ms 24296 KB n=100
16 Correct 22 ms 24296 KB n=100
17 Correct 20 ms 24296 KB n=100
18 Correct 19 ms 24296 KB n=100
19 Correct 21 ms 24296 KB n=100
20 Correct 22 ms 24296 KB n=100
21 Correct 23 ms 24332 KB n=100
22 Correct 22 ms 24332 KB n=100
23 Correct 21 ms 24332 KB n=100
24 Correct 22 ms 24332 KB n=100
25 Correct 19 ms 24332 KB n=100
26 Correct 20 ms 24332 KB n=12
27 Correct 22 ms 24332 KB n=100
28 Correct 21 ms 24360 KB n=500
29 Correct 20 ms 24372 KB n=500
30 Correct 21 ms 24392 KB n=500
31 Correct 21 ms 24404 KB n=500
32 Correct 23 ms 24420 KB n=500
33 Correct 21 ms 24432 KB n=500
34 Correct 20 ms 24448 KB n=500
35 Correct 20 ms 24464 KB n=500
36 Correct 20 ms 24480 KB n=500
37 Correct 20 ms 24560 KB n=500
38 Correct 21 ms 24560 KB n=500
39 Correct 21 ms 24560 KB n=500
40 Correct 20 ms 24560 KB n=500
41 Correct 22 ms 24560 KB n=500
42 Correct 21 ms 24560 KB n=500
43 Correct 20 ms 24572 KB n=500
44 Correct 21 ms 24584 KB n=500
45 Correct 20 ms 24596 KB n=500
46 Correct 21 ms 24608 KB n=500
47 Correct 21 ms 24624 KB n=500
48 Correct 26 ms 24644 KB n=500
49 Correct 21 ms 24656 KB n=500
50 Correct 22 ms 24800 KB n=500
51 Correct 21 ms 24800 KB n=500
52 Correct 21 ms 24800 KB n=500
53 Correct 20 ms 24800 KB n=500
54 Correct 20 ms 24800 KB n=500
55 Correct 19 ms 24800 KB n=278
56 Correct 20 ms 24800 KB n=500
57 Correct 21 ms 24800 KB n=500
58 Correct 21 ms 24800 KB n=500
59 Correct 24 ms 25176 KB n=2000
60 Correct 24 ms 25356 KB n=2000
61 Correct 24 ms 25432 KB n=2000
62 Correct 24 ms 25432 KB n=2000
63 Correct 24 ms 25444 KB n=2000
64 Correct 24 ms 25624 KB n=2000
65 Correct 24 ms 25676 KB n=2000
66 Correct 24 ms 25732 KB n=2000
67 Correct 24 ms 25788 KB n=2000
68 Correct 25 ms 25828 KB n=2000
69 Correct 23 ms 25828 KB n=2000
70 Correct 23 ms 25828 KB n=2000
71 Correct 23 ms 25868 KB n=2000
72 Correct 23 ms 26048 KB n=2000
73 Correct 22 ms 26048 KB n=2000
74 Correct 24 ms 26048 KB n=1844
75 Correct 28 ms 26080 KB n=2000
76 Correct 24 ms 26148 KB n=2000
77 Correct 24 ms 26200 KB n=2000
78 Correct 26 ms 26232 KB n=2000
79 Correct 31 ms 26232 KB n=2000
80 Correct 24 ms 26360 KB n=2000
81 Correct 24 ms 26360 KB n=2000
82 Correct 24 ms 26360 KB n=2000
83 Correct 28 ms 26360 KB n=2000
84 Correct 25 ms 26360 KB n=2000
85 Correct 26 ms 26364 KB n=2000
86 Correct 24 ms 26364 KB n=2000
87 Correct 24 ms 26364 KB n=2000
88 Correct 26 ms 26364 KB n=2000
89 Correct 24 ms 26364 KB n=2000
90 Correct 27 ms 26364 KB n=2000
91 Correct 26 ms 26364 KB n=2000

Subtask #4
0 / 44.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 23800 KB n=5
2 Correct 21 ms 23908 KB n=100
3 Correct 20 ms 24076 KB n=100
4 Correct 20 ms 24136 KB n=100
5 Correct 24 ms 24136 KB n=100
6 Correct 19 ms 24176 KB n=100
7 Correct 23 ms 24228 KB n=100
8 Correct 20 ms 24228 KB n=100
9 Correct 20 ms 24228 KB n=100
10 Correct 20 ms 24228 KB n=100
11 Correct 21 ms 24228 KB n=100
12 Correct 20 ms 24296 KB n=100
13 Correct 19 ms 24296 KB n=100
14 Correct 21 ms 24296 KB n=100
15 Correct 19 ms 24296 KB n=100
16 Correct 22 ms 24296 KB n=100
17 Correct 20 ms 24296 KB n=100
18 Correct 19 ms 24296 KB n=100
19 Correct 21 ms 24296 KB n=100
20 Correct 22 ms 24296 KB n=100
21 Correct 23 ms 24332 KB n=100
22 Correct 22 ms 24332 KB n=100
23 Correct 21 ms 24332 KB n=100
24 Correct 22 ms 24332 KB n=100
25 Correct 19 ms 24332 KB n=100
26 Correct 20 ms 24332 KB n=12
27 Correct 22 ms 24332 KB n=100
28 Correct 21 ms 24360 KB n=500
29 Correct 20 ms 24372 KB n=500
30 Correct 21 ms 24392 KB n=500
31 Correct 21 ms 24404 KB n=500
32 Correct 23 ms 24420 KB n=500
33 Correct 21 ms 24432 KB n=500
34 Correct 20 ms 24448 KB n=500
35 Correct 20 ms 24464 KB n=500
36 Correct 20 ms 24480 KB n=500
37 Correct 20 ms 24560 KB n=500
38 Correct 21 ms 24560 KB n=500
39 Correct 21 ms 24560 KB n=500
40 Correct 20 ms 24560 KB n=500
41 Correct 22 ms 24560 KB n=500
42 Correct 21 ms 24560 KB n=500
43 Correct 20 ms 24572 KB n=500
44 Correct 21 ms 24584 KB n=500
45 Correct 20 ms 24596 KB n=500
46 Correct 21 ms 24608 KB n=500
47 Correct 21 ms 24624 KB n=500
48 Correct 26 ms 24644 KB n=500
49 Correct 21 ms 24656 KB n=500
50 Correct 22 ms 24800 KB n=500
51 Correct 21 ms 24800 KB n=500
52 Correct 21 ms 24800 KB n=500
53 Correct 20 ms 24800 KB n=500
54 Correct 20 ms 24800 KB n=500
55 Correct 19 ms 24800 KB n=278
56 Correct 20 ms 24800 KB n=500
57 Correct 21 ms 24800 KB n=500
58 Correct 21 ms 24800 KB n=500
59 Correct 24 ms 25176 KB n=2000
60 Correct 24 ms 25356 KB n=2000
61 Correct 24 ms 25432 KB n=2000
62 Correct 24 ms 25432 KB n=2000
63 Correct 24 ms 25444 KB n=2000
64 Correct 24 ms 25624 KB n=2000
65 Correct 24 ms 25676 KB n=2000
66 Correct 24 ms 25732 KB n=2000
67 Correct 24 ms 25788 KB n=2000
68 Correct 25 ms 25828 KB n=2000
69 Correct 23 ms 25828 KB n=2000
70 Correct 23 ms 25828 KB n=2000
71 Correct 23 ms 25868 KB n=2000
72 Correct 23 ms 26048 KB n=2000
73 Correct 22 ms 26048 KB n=2000
74 Correct 24 ms 26048 KB n=1844
75 Correct 28 ms 26080 KB n=2000
76 Correct 24 ms 26148 KB n=2000
77 Correct 24 ms 26200 KB n=2000
78 Correct 26 ms 26232 KB n=2000
79 Correct 31 ms 26232 KB n=2000
80 Correct 24 ms 26360 KB n=2000
81 Correct 24 ms 26360 KB n=2000
82 Correct 24 ms 26360 KB n=2000
83 Correct 28 ms 26360 KB n=2000
84 Correct 25 ms 26360 KB n=2000
85 Correct 26 ms 26364 KB n=2000
86 Correct 24 ms 26364 KB n=2000
87 Correct 24 ms 26364 KB n=2000
88 Correct 26 ms 26364 KB n=2000
89 Correct 24 ms 26364 KB n=2000
90 Correct 27 ms 26364 KB n=2000
91 Correct 26 ms 26364 KB n=2000
92 Correct 972 ms 70004 KB n=200000
93 Correct 1431 ms 84440 KB n=200000
94 Correct 1403 ms 97796 KB n=200000
95 Correct 1006 ms 97796 KB n=200000
96 Correct 927 ms 98328 KB n=200000
97 Correct 1434 ms 111432 KB n=200000
98 Correct 944 ms 112516 KB n=200000
99 Correct 1171 ms 119080 KB n=200000
100 Correct 1012 ms 126128 KB n=200000
101 Correct 1424 ms 148356 KB n=200000
102 Correct 537 ms 148356 KB n=200000
103 Correct 540 ms 148356 KB n=200000
104 Correct 534 ms 154696 KB n=200000
105 Correct 533 ms 161788 KB n=200000
106 Correct 559 ms 169140 KB n=200000
107 Correct 540 ms 176504 KB n=200000
108 Correct 1151 ms 182476 KB n=200000
109 Correct 1159 ms 189344 KB n=200000
110 Correct 1118 ms 196212 KB n=200000
111 Correct 1022 ms 202544 KB n=200000
112 Correct 1436 ms 223208 KB n=200000
113 Correct 1511 ms 223312 KB n=200000
114 Correct 941 ms 224020 KB n=200000
115 Correct 1352 ms 233464 KB n=200000
116 Correct 925 ms 238428 KB n=200000
117 Correct 1368 ms 259896 KB n=200000
118 Correct 1401 ms 259896 KB n=200000
119 Correct 938 ms 260576 KB n=200000
120 Correct 1459 ms 262144 KB n=200000
121 Correct 1347 ms 262144 KB n=200000
122 Correct 1339 ms 262144 KB n=200000
123 Correct 527 ms 262144 KB n=200000
124 Incorrect 294 ms 262144 KB Wrong range.