답안 #462449

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
462449 2021-08-10T14:48:49 Z JovanB Birthday gift (IZhO18_treearray) C++17
100 / 100
1348 ms 84020 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;
}
# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 23816 KB n=5
2 Correct 14 ms 23852 KB n=100
3 Correct 14 ms 23828 KB n=100
4 Correct 14 ms 23780 KB n=100
5 Correct 15 ms 23760 KB n=100
6 Correct 14 ms 23756 KB n=100
7 Correct 14 ms 23816 KB n=100
8 Correct 14 ms 23756 KB n=100
9 Correct 14 ms 23756 KB n=100
10 Correct 15 ms 23728 KB n=100
11 Correct 14 ms 23740 KB n=100
12 Correct 14 ms 23760 KB n=100
13 Correct 15 ms 23800 KB n=100
14 Correct 15 ms 23756 KB n=100
15 Correct 14 ms 23772 KB n=100
16 Correct 15 ms 23756 KB n=100
17 Correct 16 ms 23756 KB n=100
18 Correct 15 ms 23812 KB n=100
19 Correct 14 ms 23816 KB n=100
20 Correct 14 ms 23788 KB n=100
21 Correct 14 ms 23756 KB n=100
22 Correct 15 ms 23756 KB n=100
23 Correct 15 ms 23812 KB n=100
24 Correct 15 ms 23848 KB n=100
25 Correct 15 ms 23820 KB n=100
26 Correct 15 ms 23756 KB n=12
27 Correct 14 ms 23752 KB n=100
# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 23816 KB n=5
2 Correct 14 ms 23852 KB n=100
3 Correct 14 ms 23828 KB n=100
4 Correct 14 ms 23780 KB n=100
5 Correct 15 ms 23760 KB n=100
6 Correct 14 ms 23756 KB n=100
7 Correct 14 ms 23816 KB n=100
8 Correct 14 ms 23756 KB n=100
9 Correct 14 ms 23756 KB n=100
10 Correct 15 ms 23728 KB n=100
11 Correct 14 ms 23740 KB n=100
12 Correct 14 ms 23760 KB n=100
13 Correct 15 ms 23800 KB n=100
14 Correct 15 ms 23756 KB n=100
15 Correct 14 ms 23772 KB n=100
16 Correct 15 ms 23756 KB n=100
17 Correct 16 ms 23756 KB n=100
18 Correct 15 ms 23812 KB n=100
19 Correct 14 ms 23816 KB n=100
20 Correct 14 ms 23788 KB n=100
21 Correct 14 ms 23756 KB n=100
22 Correct 15 ms 23756 KB n=100
23 Correct 15 ms 23812 KB n=100
24 Correct 15 ms 23848 KB n=100
25 Correct 15 ms 23820 KB n=100
26 Correct 15 ms 23756 KB n=12
27 Correct 14 ms 23752 KB n=100
28 Correct 15 ms 24012 KB n=500
29 Correct 14 ms 23952 KB n=500
30 Correct 15 ms 23956 KB n=500
31 Correct 15 ms 23920 KB n=500
32 Correct 15 ms 23884 KB n=500
33 Correct 17 ms 23956 KB n=500
34 Correct 15 ms 23912 KB n=500
35 Correct 16 ms 23912 KB n=500
36 Correct 14 ms 23952 KB n=500
37 Correct 13 ms 23884 KB n=500
38 Correct 14 ms 23884 KB n=500
39 Correct 14 ms 23884 KB n=500
40 Correct 14 ms 23936 KB n=500
41 Correct 13 ms 23936 KB n=500
42 Correct 16 ms 23952 KB n=500
43 Correct 18 ms 23844 KB n=500
44 Correct 14 ms 23908 KB n=500
45 Correct 13 ms 23856 KB n=500
46 Correct 14 ms 23956 KB n=500
47 Correct 18 ms 23856 KB n=500
48 Correct 14 ms 23884 KB n=500
49 Correct 13 ms 23864 KB n=500
50 Correct 14 ms 23884 KB n=500
51 Correct 13 ms 23864 KB n=500
52 Correct 14 ms 23956 KB n=500
53 Correct 14 ms 23884 KB n=500
54 Correct 13 ms 23884 KB n=500
55 Correct 13 ms 23824 KB n=278
56 Correct 17 ms 23924 KB n=500
57 Correct 14 ms 23924 KB n=500
58 Correct 14 ms 23884 KB n=500
# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 23816 KB n=5
2 Correct 14 ms 23852 KB n=100
3 Correct 14 ms 23828 KB n=100
4 Correct 14 ms 23780 KB n=100
5 Correct 15 ms 23760 KB n=100
6 Correct 14 ms 23756 KB n=100
7 Correct 14 ms 23816 KB n=100
8 Correct 14 ms 23756 KB n=100
9 Correct 14 ms 23756 KB n=100
10 Correct 15 ms 23728 KB n=100
11 Correct 14 ms 23740 KB n=100
12 Correct 14 ms 23760 KB n=100
13 Correct 15 ms 23800 KB n=100
14 Correct 15 ms 23756 KB n=100
15 Correct 14 ms 23772 KB n=100
16 Correct 15 ms 23756 KB n=100
17 Correct 16 ms 23756 KB n=100
18 Correct 15 ms 23812 KB n=100
19 Correct 14 ms 23816 KB n=100
20 Correct 14 ms 23788 KB n=100
21 Correct 14 ms 23756 KB n=100
22 Correct 15 ms 23756 KB n=100
23 Correct 15 ms 23812 KB n=100
24 Correct 15 ms 23848 KB n=100
25 Correct 15 ms 23820 KB n=100
26 Correct 15 ms 23756 KB n=12
27 Correct 14 ms 23752 KB n=100
28 Correct 15 ms 24012 KB n=500
29 Correct 14 ms 23952 KB n=500
30 Correct 15 ms 23956 KB n=500
31 Correct 15 ms 23920 KB n=500
32 Correct 15 ms 23884 KB n=500
33 Correct 17 ms 23956 KB n=500
34 Correct 15 ms 23912 KB n=500
35 Correct 16 ms 23912 KB n=500
36 Correct 14 ms 23952 KB n=500
37 Correct 13 ms 23884 KB n=500
38 Correct 14 ms 23884 KB n=500
39 Correct 14 ms 23884 KB n=500
40 Correct 14 ms 23936 KB n=500
41 Correct 13 ms 23936 KB n=500
42 Correct 16 ms 23952 KB n=500
43 Correct 18 ms 23844 KB n=500
44 Correct 14 ms 23908 KB n=500
45 Correct 13 ms 23856 KB n=500
46 Correct 14 ms 23956 KB n=500
47 Correct 18 ms 23856 KB n=500
48 Correct 14 ms 23884 KB n=500
49 Correct 13 ms 23864 KB n=500
50 Correct 14 ms 23884 KB n=500
51 Correct 13 ms 23864 KB n=500
52 Correct 14 ms 23956 KB n=500
53 Correct 14 ms 23884 KB n=500
54 Correct 13 ms 23884 KB n=500
55 Correct 13 ms 23824 KB n=278
56 Correct 17 ms 23924 KB n=500
57 Correct 14 ms 23924 KB n=500
58 Correct 14 ms 23884 KB n=500
59 Correct 19 ms 24252 KB n=2000
60 Correct 19 ms 24392 KB n=2000
61 Correct 18 ms 24308 KB n=2000
62 Correct 17 ms 24252 KB n=2000
63 Correct 17 ms 24208 KB n=2000
64 Correct 18 ms 24268 KB n=2000
65 Correct 20 ms 24316 KB n=2000
66 Correct 19 ms 24368 KB n=2000
67 Correct 20 ms 24208 KB n=2000
68 Correct 18 ms 24256 KB n=2000
69 Correct 18 ms 24288 KB n=2000
70 Correct 16 ms 24272 KB n=2000
71 Correct 18 ms 24224 KB n=2000
72 Correct 15 ms 24208 KB n=2000
73 Correct 15 ms 24212 KB n=2000
74 Correct 18 ms 24268 KB n=1844
75 Correct 17 ms 24260 KB n=2000
76 Correct 17 ms 24212 KB n=2000
77 Correct 17 ms 24220 KB n=2000
78 Correct 18 ms 24272 KB n=2000
79 Correct 17 ms 24212 KB n=2000
80 Correct 17 ms 24340 KB n=2000
81 Correct 17 ms 24340 KB n=2000
82 Correct 16 ms 24216 KB n=2000
83 Correct 20 ms 24324 KB n=2000
84 Correct 19 ms 24292 KB n=2000
85 Correct 17 ms 24268 KB n=2000
86 Correct 18 ms 24336 KB n=2000
87 Correct 18 ms 24268 KB n=2000
88 Correct 17 ms 24396 KB n=2000
89 Correct 17 ms 24396 KB n=2000
90 Correct 16 ms 24364 KB n=2000
91 Correct 16 ms 24316 KB n=2000
# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 23816 KB n=5
2 Correct 14 ms 23852 KB n=100
3 Correct 14 ms 23828 KB n=100
4 Correct 14 ms 23780 KB n=100
5 Correct 15 ms 23760 KB n=100
6 Correct 14 ms 23756 KB n=100
7 Correct 14 ms 23816 KB n=100
8 Correct 14 ms 23756 KB n=100
9 Correct 14 ms 23756 KB n=100
10 Correct 15 ms 23728 KB n=100
11 Correct 14 ms 23740 KB n=100
12 Correct 14 ms 23760 KB n=100
13 Correct 15 ms 23800 KB n=100
14 Correct 15 ms 23756 KB n=100
15 Correct 14 ms 23772 KB n=100
16 Correct 15 ms 23756 KB n=100
17 Correct 16 ms 23756 KB n=100
18 Correct 15 ms 23812 KB n=100
19 Correct 14 ms 23816 KB n=100
20 Correct 14 ms 23788 KB n=100
21 Correct 14 ms 23756 KB n=100
22 Correct 15 ms 23756 KB n=100
23 Correct 15 ms 23812 KB n=100
24 Correct 15 ms 23848 KB n=100
25 Correct 15 ms 23820 KB n=100
26 Correct 15 ms 23756 KB n=12
27 Correct 14 ms 23752 KB n=100
28 Correct 15 ms 24012 KB n=500
29 Correct 14 ms 23952 KB n=500
30 Correct 15 ms 23956 KB n=500
31 Correct 15 ms 23920 KB n=500
32 Correct 15 ms 23884 KB n=500
33 Correct 17 ms 23956 KB n=500
34 Correct 15 ms 23912 KB n=500
35 Correct 16 ms 23912 KB n=500
36 Correct 14 ms 23952 KB n=500
37 Correct 13 ms 23884 KB n=500
38 Correct 14 ms 23884 KB n=500
39 Correct 14 ms 23884 KB n=500
40 Correct 14 ms 23936 KB n=500
41 Correct 13 ms 23936 KB n=500
42 Correct 16 ms 23952 KB n=500
43 Correct 18 ms 23844 KB n=500
44 Correct 14 ms 23908 KB n=500
45 Correct 13 ms 23856 KB n=500
46 Correct 14 ms 23956 KB n=500
47 Correct 18 ms 23856 KB n=500
48 Correct 14 ms 23884 KB n=500
49 Correct 13 ms 23864 KB n=500
50 Correct 14 ms 23884 KB n=500
51 Correct 13 ms 23864 KB n=500
52 Correct 14 ms 23956 KB n=500
53 Correct 14 ms 23884 KB n=500
54 Correct 13 ms 23884 KB n=500
55 Correct 13 ms 23824 KB n=278
56 Correct 17 ms 23924 KB n=500
57 Correct 14 ms 23924 KB n=500
58 Correct 14 ms 23884 KB n=500
59 Correct 19 ms 24252 KB n=2000
60 Correct 19 ms 24392 KB n=2000
61 Correct 18 ms 24308 KB n=2000
62 Correct 17 ms 24252 KB n=2000
63 Correct 17 ms 24208 KB n=2000
64 Correct 18 ms 24268 KB n=2000
65 Correct 20 ms 24316 KB n=2000
66 Correct 19 ms 24368 KB n=2000
67 Correct 20 ms 24208 KB n=2000
68 Correct 18 ms 24256 KB n=2000
69 Correct 18 ms 24288 KB n=2000
70 Correct 16 ms 24272 KB n=2000
71 Correct 18 ms 24224 KB n=2000
72 Correct 15 ms 24208 KB n=2000
73 Correct 15 ms 24212 KB n=2000
74 Correct 18 ms 24268 KB n=1844
75 Correct 17 ms 24260 KB n=2000
76 Correct 17 ms 24212 KB n=2000
77 Correct 17 ms 24220 KB n=2000
78 Correct 18 ms 24272 KB n=2000
79 Correct 17 ms 24212 KB n=2000
80 Correct 17 ms 24340 KB n=2000
81 Correct 17 ms 24340 KB n=2000
82 Correct 16 ms 24216 KB n=2000
83 Correct 20 ms 24324 KB n=2000
84 Correct 19 ms 24292 KB n=2000
85 Correct 17 ms 24268 KB n=2000
86 Correct 18 ms 24336 KB n=2000
87 Correct 18 ms 24268 KB n=2000
88 Correct 17 ms 24396 KB n=2000
89 Correct 17 ms 24396 KB n=2000
90 Correct 16 ms 24364 KB n=2000
91 Correct 16 ms 24316 KB n=2000
92 Correct 813 ms 74552 KB n=200000
93 Correct 1217 ms 79392 KB n=200000
94 Correct 1108 ms 82776 KB n=200000
95 Correct 802 ms 74220 KB n=200000
96 Correct 760 ms 74304 KB n=200000
97 Correct 1258 ms 78520 KB n=200000
98 Correct 828 ms 74292 KB n=200000
99 Correct 915 ms 74548 KB n=200000
100 Correct 792 ms 74336 KB n=200000
101 Correct 1025 ms 84020 KB n=200000
102 Correct 486 ms 75528 KB n=200000
103 Correct 498 ms 75476 KB n=200000
104 Correct 548 ms 75556 KB n=200000
105 Correct 501 ms 75924 KB n=200000
106 Correct 535 ms 75952 KB n=200000
107 Correct 498 ms 75948 KB n=200000
108 Correct 839 ms 74396 KB n=200000
109 Correct 812 ms 74388 KB n=200000
110 Correct 824 ms 74584 KB n=200000
111 Correct 736 ms 73764 KB n=200000
112 Correct 995 ms 82932 KB n=200000
113 Correct 1099 ms 78384 KB n=200000
114 Correct 790 ms 73788 KB n=200000
115 Correct 1301 ms 76404 KB n=200000
116 Correct 800 ms 74532 KB n=200000
117 Correct 1250 ms 83380 KB n=200000
118 Correct 1348 ms 77248 KB n=200000
119 Correct 765 ms 74456 KB n=200000
120 Correct 1080 ms 83000 KB n=200000
121 Correct 1004 ms 82924 KB n=200000
122 Correct 1029 ms 83200 KB n=200000
123 Correct 503 ms 75660 KB n=200000
124 Correct 233 ms 38592 KB n=25264