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답안 #428506

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
428506 2021-06-15T12:24:30 Z jovan_b Birthday gift (IZhO18_treearray) C++17
100 / 100
 1528 ms 84016 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;

const int MAXN = 200000;
const int MXLOG = 18;

int par[MAXN+5][MXLOG+1];
vector <int> graf[MAXN+5];
int in[MAXN+5];
int out[MAXN+5];

int tjm;
void dfs(int v, int p){
    par[v][0] = p;
    in[v] = ++tjm;
    for(int j=1; j<=MXLOG; j++) par[v][j] = par[par[v][j-1]][j-1];
    for(auto c : graf[v]) if(c != p) dfs(c, v);
    out[v] = tjm;
}

int val[MAXN+5];

bool is_parent(int a, int b){
    return (a == 0) || (in[a] <= in[b] && out[b] <= out[a]);
}

int lca(int a, int b){
    if(is_parent(a, b)) return a;
    for(int j=MXLOG; j>=0; j--){
        if(!is_parent(par[a][j], b)) a = par[a][j];
    }
    return par[a][0];
}

set <int> p1[MAXN+5];
set <int> p2[MAXN+5];

int main(){
    ios_base::sync_with_stdio(false), cin.tie(0);
	cout.precision(10);
	cout << fixed;

    int n, m, q;
    cin >> n >> m >> q;
    for(int i=1; i<n; i++){
        int a, b;
        cin >> a >> b;
        graf[a].push_back(b);
        graf[b].push_back(a);
    }
    dfs(1, 0);
    for(int i=1; i<=m; i++){
        cin >> val[i];
        p1[val[i]].insert(i);
    }
    for(int i=2; i<=m; i++){
        p2[lca(val[i-1], val[i])].insert(i);
    }
    while(q--){
        int tp;
        cin >> tp;
        if(tp == 1){
            int pos, v;
            cin >> pos >> v;
            p1[val[pos]].erase(pos);
            if(pos > 1) p2[lca(val[pos], val[pos-1])].erase(pos);
            if(pos < m) p2[lca(val[pos], val[pos+1])].erase(pos+1);
            val[pos] = v;
            p1[val[pos]].insert(pos);
            if(pos > 1) p2[lca(val[pos], val[pos-1])].insert(pos);
            if(pos < m) p2[lca(val[pos], val[pos+1])].insert(pos+1);
        }
        else{
            int l, r, v;
            cin >> l >> r >> v;
            auto x = p1[v].lower_bound(l);
            if(x != p1[v].end() && *x <= r){
                cout << *x << " " << *x << "\n";
                continue;
            }
            x = p2[v].lower_bound(l+1);
            if(x != p2[v].end() && *x <= r){
                cout << (*x)-1 << " " << *x << "\n";
                continue;
            }
            cout << "-1 -1\n";
        }
    }
    return 0;
}

/*
5 4 4
1 2
3 1
3 4
5 3
4 5 2 3
2 1 3 1
1 3 5
2 3 4 5
2 1 3 1
*/

Subtask #1
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 23732 KB n=5
2 Correct 18 ms 23756 KB n=100
3 Correct 17 ms 23820 KB n=100
4 Correct 17 ms 23852 KB n=100
5 Correct 21 ms 23800 KB n=100
6 Correct 18 ms 23756 KB n=100
7 Correct 19 ms 23756 KB n=100
8 Correct 16 ms 23756 KB n=100
9 Correct 18 ms 23836 KB n=100
10 Correct 19 ms 23820 KB n=100
11 Correct 18 ms 23856 KB n=100
12 Correct 18 ms 23756 KB n=100
13 Correct 17 ms 23820 KB n=100
14 Correct 16 ms 23756 KB n=100
15 Correct 17 ms 23852 KB n=100
16 Correct 17 ms 23756 KB n=100
17 Correct 17 ms 23780 KB n=100
18 Correct 15 ms 23756 KB n=100
19 Correct 16 ms 23756 KB n=100
20 Correct 16 ms 23764 KB n=100
21 Correct 15 ms 23756 KB n=100
22 Correct 18 ms 23756 KB n=100
23 Correct 18 ms 23728 KB n=100
24 Correct 19 ms 23812 KB n=100
25 Correct 15 ms 23756 KB n=100
26 Correct 18 ms 23776 KB n=12
27 Correct 16 ms 23812 KB n=100

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 23732 KB n=5
2 Correct 18 ms 23756 KB n=100
3 Correct 17 ms 23820 KB n=100
4 Correct 17 ms 23852 KB n=100
5 Correct 21 ms 23800 KB n=100
6 Correct 18 ms 23756 KB n=100
7 Correct 19 ms 23756 KB n=100
8 Correct 16 ms 23756 KB n=100
9 Correct 18 ms 23836 KB n=100
10 Correct 19 ms 23820 KB n=100
11 Correct 18 ms 23856 KB n=100
12 Correct 18 ms 23756 KB n=100
13 Correct 17 ms 23820 KB n=100
14 Correct 16 ms 23756 KB n=100
15 Correct 17 ms 23852 KB n=100
16 Correct 17 ms 23756 KB n=100
17 Correct 17 ms 23780 KB n=100
18 Correct 15 ms 23756 KB n=100
19 Correct 16 ms 23756 KB n=100
20 Correct 16 ms 23764 KB n=100
21 Correct 15 ms 23756 KB n=100
22 Correct 18 ms 23756 KB n=100
23 Correct 18 ms 23728 KB n=100
24 Correct 19 ms 23812 KB n=100
25 Correct 15 ms 23756 KB n=100
26 Correct 18 ms 23776 KB n=12
27 Correct 16 ms 23812 KB n=100
28 Correct 16 ms 23952 KB n=500
29 Correct 20 ms 23956 KB n=500
30 Correct 18 ms 23860 KB n=500
31 Correct 20 ms 23964 KB n=500
32 Correct 17 ms 23884 KB n=500
33 Correct 19 ms 23864 KB n=500
34 Correct 17 ms 23960 KB n=500
35 Correct 19 ms 23936 KB n=500
36 Correct 17 ms 23904 KB n=500
37 Correct 20 ms 23932 KB n=500
38 Correct 17 ms 23816 KB n=500
39 Correct 19 ms 23948 KB n=500
40 Correct 18 ms 23944 KB n=500
41 Correct 19 ms 23912 KB n=500
42 Correct 18 ms 23884 KB n=500
43 Correct 20 ms 23960 KB n=500
44 Correct 18 ms 23956 KB n=500
45 Correct 16 ms 23884 KB n=500
46 Correct 18 ms 23884 KB n=500
47 Correct 18 ms 23884 KB n=500
48 Correct 19 ms 23884 KB n=500
49 Correct 18 ms 23912 KB n=500
50 Correct 19 ms 23860 KB n=500
51 Correct 19 ms 23884 KB n=500
52 Correct 20 ms 23884 KB n=500
53 Correct 18 ms 23884 KB n=500
54 Correct 18 ms 23884 KB n=500
55 Correct 16 ms 23824 KB n=278
56 Correct 17 ms 23940 KB n=500
57 Correct 16 ms 23968 KB n=500
58 Correct 17 ms 23884 KB n=500

Subtask #3
26.0 / 26.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 23732 KB n=5
2 Correct 18 ms 23756 KB n=100
3 Correct 17 ms 23820 KB n=100
4 Correct 17 ms 23852 KB n=100
5 Correct 21 ms 23800 KB n=100
6 Correct 18 ms 23756 KB n=100
7 Correct 19 ms 23756 KB n=100
8 Correct 16 ms 23756 KB n=100
9 Correct 18 ms 23836 KB n=100
10 Correct 19 ms 23820 KB n=100
11 Correct 18 ms 23856 KB n=100
12 Correct 18 ms 23756 KB n=100
13 Correct 17 ms 23820 KB n=100
14 Correct 16 ms 23756 KB n=100
15 Correct 17 ms 23852 KB n=100
16 Correct 17 ms 23756 KB n=100
17 Correct 17 ms 23780 KB n=100
18 Correct 15 ms 23756 KB n=100
19 Correct 16 ms 23756 KB n=100
20 Correct 16 ms 23764 KB n=100
21 Correct 15 ms 23756 KB n=100
22 Correct 18 ms 23756 KB n=100
23 Correct 18 ms 23728 KB n=100
24 Correct 19 ms 23812 KB n=100
25 Correct 15 ms 23756 KB n=100
26 Correct 18 ms 23776 KB n=12
27 Correct 16 ms 23812 KB n=100
28 Correct 16 ms 23952 KB n=500
29 Correct 20 ms 23956 KB n=500
30 Correct 18 ms 23860 KB n=500
31 Correct 20 ms 23964 KB n=500
32 Correct 17 ms 23884 KB n=500
33 Correct 19 ms 23864 KB n=500
34 Correct 17 ms 23960 KB n=500
35 Correct 19 ms 23936 KB n=500
36 Correct 17 ms 23904 KB n=500
37 Correct 20 ms 23932 KB n=500
38 Correct 17 ms 23816 KB n=500
39 Correct 19 ms 23948 KB n=500
40 Correct 18 ms 23944 KB n=500
41 Correct 19 ms 23912 KB n=500
42 Correct 18 ms 23884 KB n=500
43 Correct 20 ms 23960 KB n=500
44 Correct 18 ms 23956 KB n=500
45 Correct 16 ms 23884 KB n=500
46 Correct 18 ms 23884 KB n=500
47 Correct 18 ms 23884 KB n=500
48 Correct 19 ms 23884 KB n=500
49 Correct 18 ms 23912 KB n=500
50 Correct 19 ms 23860 KB n=500
51 Correct 19 ms 23884 KB n=500
52 Correct 20 ms 23884 KB n=500
53 Correct 18 ms 23884 KB n=500
54 Correct 18 ms 23884 KB n=500
55 Correct 16 ms 23824 KB n=278
56 Correct 17 ms 23940 KB n=500
57 Correct 16 ms 23968 KB n=500
58 Correct 17 ms 23884 KB n=500
59 Correct 21 ms 24200 KB n=2000
60 Correct 24 ms 24288 KB n=2000
61 Correct 25 ms 24268 KB n=2000
62 Correct 21 ms 24268 KB n=2000
63 Correct 19 ms 24228 KB n=2000
64 Correct 21 ms 24344 KB n=2000
65 Correct 24 ms 24304 KB n=2000
66 Correct 23 ms 24268 KB n=2000
67 Correct 24 ms 24260 KB n=2000
68 Correct 20 ms 24344 KB n=2000
69 Correct 18 ms 24236 KB n=2000
70 Correct 19 ms 24280 KB n=2000
71 Correct 21 ms 24268 KB n=2000
72 Correct 22 ms 24260 KB n=2000
73 Correct 22 ms 24236 KB n=2000
74 Correct 24 ms 24224 KB n=1844
75 Correct 21 ms 24204 KB n=2000
76 Correct 21 ms 24348 KB n=2000
77 Correct 19 ms 24268 KB n=2000
78 Correct 23 ms 24260 KB n=2000
79 Correct 20 ms 24284 KB n=2000
80 Correct 19 ms 24268 KB n=2000
81 Correct 19 ms 24268 KB n=2000
82 Correct 17 ms 24308 KB n=2000
83 Correct 25 ms 24372 KB n=2000
84 Correct 17 ms 24284 KB n=2000
85 Correct 18 ms 24332 KB n=2000
86 Correct 18 ms 24332 KB n=2000
87 Correct 20 ms 24268 KB n=2000
88 Correct 17 ms 24344 KB n=2000
89 Correct 18 ms 24344 KB n=2000
90 Correct 17 ms 24344 KB n=2000
91 Correct 21 ms 24268 KB n=2000

Subtask #4
44.0 / 44.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 23732 KB n=5
2 Correct 18 ms 23756 KB n=100
3 Correct 17 ms 23820 KB n=100
4 Correct 17 ms 23852 KB n=100
5 Correct 21 ms 23800 KB n=100
6 Correct 18 ms 23756 KB n=100
7 Correct 19 ms 23756 KB n=100
8 Correct 16 ms 23756 KB n=100
9 Correct 18 ms 23836 KB n=100
10 Correct 19 ms 23820 KB n=100
11 Correct 18 ms 23856 KB n=100
12 Correct 18 ms 23756 KB n=100
13 Correct 17 ms 23820 KB n=100
14 Correct 16 ms 23756 KB n=100
15 Correct 17 ms 23852 KB n=100
16 Correct 17 ms 23756 KB n=100
17 Correct 17 ms 23780 KB n=100
18 Correct 15 ms 23756 KB n=100
19 Correct 16 ms 23756 KB n=100
20 Correct 16 ms 23764 KB n=100
21 Correct 15 ms 23756 KB n=100
22 Correct 18 ms 23756 KB n=100
23 Correct 18 ms 23728 KB n=100
24 Correct 19 ms 23812 KB n=100
25 Correct 15 ms 23756 KB n=100
26 Correct 18 ms 23776 KB n=12
27 Correct 16 ms 23812 KB n=100
28 Correct 16 ms 23952 KB n=500
29 Correct 20 ms 23956 KB n=500
30 Correct 18 ms 23860 KB n=500
31 Correct 20 ms 23964 KB n=500
32 Correct 17 ms 23884 KB n=500
33 Correct 19 ms 23864 KB n=500
34 Correct 17 ms 23960 KB n=500
35 Correct 19 ms 23936 KB n=500
36 Correct 17 ms 23904 KB n=500
37 Correct 20 ms 23932 KB n=500
38 Correct 17 ms 23816 KB n=500
39 Correct 19 ms 23948 KB n=500
40 Correct 18 ms 23944 KB n=500
41 Correct 19 ms 23912 KB n=500
42 Correct 18 ms 23884 KB n=500
43 Correct 20 ms 23960 KB n=500
44 Correct 18 ms 23956 KB n=500
45 Correct 16 ms 23884 KB n=500
46 Correct 18 ms 23884 KB n=500
47 Correct 18 ms 23884 KB n=500
48 Correct 19 ms 23884 KB n=500
49 Correct 18 ms 23912 KB n=500
50 Correct 19 ms 23860 KB n=500
51 Correct 19 ms 23884 KB n=500
52 Correct 20 ms 23884 KB n=500
53 Correct 18 ms 23884 KB n=500
54 Correct 18 ms 23884 KB n=500
55 Correct 16 ms 23824 KB n=278
56 Correct 17 ms 23940 KB n=500
57 Correct 16 ms 23968 KB n=500
58 Correct 17 ms 23884 KB n=500
59 Correct 21 ms 24200 KB n=2000
60 Correct 24 ms 24288 KB n=2000
61 Correct 25 ms 24268 KB n=2000
62 Correct 21 ms 24268 KB n=2000
63 Correct 19 ms 24228 KB n=2000
64 Correct 21 ms 24344 KB n=2000
65 Correct 24 ms 24304 KB n=2000
66 Correct 23 ms 24268 KB n=2000
67 Correct 24 ms 24260 KB n=2000
68 Correct 20 ms 24344 KB n=2000
69 Correct 18 ms 24236 KB n=2000
70 Correct 19 ms 24280 KB n=2000
71 Correct 21 ms 24268 KB n=2000
72 Correct 22 ms 24260 KB n=2000
73 Correct 22 ms 24236 KB n=2000
74 Correct 24 ms 24224 KB n=1844
75 Correct 21 ms 24204 KB n=2000
76 Correct 21 ms 24348 KB n=2000
77 Correct 19 ms 24268 KB n=2000
78 Correct 23 ms 24260 KB n=2000
79 Correct 20 ms 24284 KB n=2000
80 Correct 19 ms 24268 KB n=2000
81 Correct 19 ms 24268 KB n=2000
82 Correct 17 ms 24308 KB n=2000
83 Correct 25 ms 24372 KB n=2000
84 Correct 17 ms 24284 KB n=2000
85 Correct 18 ms 24332 KB n=2000
86 Correct 18 ms 24332 KB n=2000
87 Correct 20 ms 24268 KB n=2000
88 Correct 17 ms 24344 KB n=2000
89 Correct 18 ms 24344 KB n=2000
90 Correct 17 ms 24344 KB n=2000
91 Correct 21 ms 24268 KB n=2000
92 Correct 983 ms 74560 KB n=200000
93 Correct 1528 ms 79352 KB n=200000
94 Correct 1319 ms 82840 KB n=200000
95 Correct 959 ms 74428 KB n=200000
96 Correct 855 ms 74432 KB n=200000
97 Correct 1406 ms 78556 KB n=200000
98 Correct 909 ms 74316 KB n=200000
99 Correct 1153 ms 74580 KB n=200000
100 Correct 908 ms 74460 KB n=200000
101 Correct 1339 ms 84016 KB n=200000
102 Correct 576 ms 75536 KB n=200000
103 Correct 577 ms 75524 KB n=200000
104 Correct 576 ms 75568 KB n=200000
105 Correct 594 ms 76060 KB n=200000
106 Correct 568 ms 75880 KB n=200000
107 Correct 593 ms 75988 KB n=200000
108 Correct 1157 ms 74444 KB n=200000
109 Correct 1109 ms 74340 KB n=200000
110 Correct 1116 ms 74420 KB n=200000
111 Correct 842 ms 73792 KB n=200000
112 Correct 1227 ms 82972 KB n=200000
113 Correct 1334 ms 78484 KB n=200000
114 Correct 927 ms 73876 KB n=200000
115 Correct 1478 ms 76408 KB n=200000
116 Correct 823 ms 74452 KB n=200000
117 Correct 1189 ms 83404 KB n=200000
118 Correct 1369 ms 77368 KB n=200000
119 Correct 832 ms 74528 KB n=200000
120 Correct 1156 ms 82912 KB n=200000
121 Correct 1188 ms 82936 KB n=200000
122 Correct 1073 ms 83236 KB n=200000
123 Correct 595 ms 75692 KB n=200000
124 Correct 285 ms 38592 KB n=25264