oj.uz

Submission #319317

# Submission time Handle Problem Language Result Execution time Memory
319317 2020-11-04T16:47:43 Z BeanZ Birthday gift (IZhO18_treearray) C++14
100 / 100
 1252 ms 89444 KB 
// I_Love_LPL
#include <bits/stdc++.h>
using namespace std;
//#define task "A"
#define ll int
#define endl '\n'
const int N = 2e5 + 5;
const int mod = 1e9 + 7;
const int lg = 18;
ll dp[N][lg + 1], dep[N];
vector<ll> node[N];
struct LCA{
    ll lca(ll u, ll v){
        if (dep[v] < dep[u]) swap(u, v);
        ll dis = dep[v] - dep[u];
        for (int i = lg; i >= 0; i--){
            if (dis & (1 << i)){
                v = dp[v][i];
            }
        }
        if (v == u) return u;
        for (int i = lg; i >= 0; i--){
            if (dp[u][i] != dp[v][i]){
                v = dp[v][i];
                u = dp[u][i];
            }
        }
        return dp[u][0];
    }
    void dfs(ll u, ll v){
        for (int i = 1; i <= lg; i++) dp[u][i] = dp[dp[u][i - 1]][i - 1];
        for (auto j : node[u]){
            if (j == v) continue;
            dep[j] = dep[u] + 1;
            dp[j][0] = u;
            dfs(j, u);
        }
    }
} tree;
set<ll> two[N], one[N];
ll a[N];
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    if (fopen(".inp", "r")){
        freopen(".inp", "r", stdin);
        freopen(".out", "w", stdout);
    }
    ll n, m, q;
    cin >> n >> m >> q;
    for (int i = 1; i < n; i++){
        ll u, v;
        cin >> u >> v;
        node[u].push_back(v);
        node[v].push_back(u);
    }
    tree.dfs(1, 1);
    for (int i = 1; i <= m; i++) cin >> a[i];
    for (int i = 1; i < m; i++) two[tree.lca(a[i], a[i + 1])].insert(i);
    for (int i = 1; i <= m; i++) one[a[i]].insert(i);
    while (q--){
        ll task;
        cin >> task;
        if (task == 1){
            ll x, v;
            cin >> x >> v;
            one[a[x]].erase(x);
            one[v].insert(x);
            if (x < m) two[tree.lca(a[x], a[x + 1])].erase(x);
            if (x < m) two[tree.lca(v, a[x + 1])].insert(x);
            if (x > 1) two[tree.lca(a[x - 1], a[x])].erase(x - 1);
            if (x > 1) two[tree.lca(a[x - 1], v)].insert(x - 1);
            a[x] = v;
        } else {
            ll l, r, v;
            cin >> l >> r >> v;
            if (two[v].lower_bound(l) == two[v].end() || *two[v].lower_bound(l) >= r){
                if (one[v].lower_bound(l) == one[v].end() || *one[v].lower_bound(l) > r) cout << -1 << " " << -1 << endl;
                else cout << *one[v].lower_bound(l) << " " << *one[v].lower_bound(l) << endl;
            }
            else cout << *two[v].lower_bound(l) << " " << *two[v].lower_bound(l) + 1 << endl;
        }
    }
}
/*
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
*/

Compilation message

treearray.cpp: In function 'int main()':
treearray.cpp:46:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   46 |         freopen(".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~
treearray.cpp:47:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   47 |         freopen(".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 23788 KB n=5
2 Correct 16 ms 23916 KB n=100
3 Correct 16 ms 23916 KB n=100
4 Correct 16 ms 23916 KB n=100
5 Correct 18 ms 23916 KB n=100
6 Correct 16 ms 23916 KB n=100
7 Correct 16 ms 23916 KB n=100
8 Correct 16 ms 23916 KB n=100
9 Correct 16 ms 23916 KB n=100
10 Correct 16 ms 23908 KB n=100
11 Correct 16 ms 23916 KB n=100
12 Correct 16 ms 23916 KB n=100
13 Correct 16 ms 23916 KB n=100
14 Correct 16 ms 23916 KB n=100
15 Correct 16 ms 23916 KB n=100
16 Correct 16 ms 23936 KB n=100
17 Correct 17 ms 23916 KB n=100
18 Correct 17 ms 23916 KB n=100
19 Correct 16 ms 23916 KB n=100
20 Correct 16 ms 23916 KB n=100
21 Correct 16 ms 23916 KB n=100
22 Correct 16 ms 23916 KB n=100
23 Correct 16 ms 23916 KB n=100
24 Correct 16 ms 23916 KB n=100
25 Correct 16 ms 23916 KB n=100
26 Correct 16 ms 23788 KB n=12
27 Correct 16 ms 23916 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 23788 KB n=5
2 Correct 16 ms 23916 KB n=100
3 Correct 16 ms 23916 KB n=100
4 Correct 16 ms 23916 KB n=100
5 Correct 18 ms 23916 KB n=100
6 Correct 16 ms 23916 KB n=100
7 Correct 16 ms 23916 KB n=100
8 Correct 16 ms 23916 KB n=100
9 Correct 16 ms 23916 KB n=100
10 Correct 16 ms 23908 KB n=100
11 Correct 16 ms 23916 KB n=100
12 Correct 16 ms 23916 KB n=100
13 Correct 16 ms 23916 KB n=100
14 Correct 16 ms 23916 KB n=100
15 Correct 16 ms 23916 KB n=100
16 Correct 16 ms 23936 KB n=100
17 Correct 17 ms 23916 KB n=100
18 Correct 17 ms 23916 KB n=100
19 Correct 16 ms 23916 KB n=100
20 Correct 16 ms 23916 KB n=100
21 Correct 16 ms 23916 KB n=100
22 Correct 16 ms 23916 KB n=100
23 Correct 16 ms 23916 KB n=100
24 Correct 16 ms 23916 KB n=100
25 Correct 16 ms 23916 KB n=100
26 Correct 16 ms 23788 KB n=12
27 Correct 16 ms 23916 KB n=100
28 Correct 17 ms 23916 KB n=500
29 Correct 17 ms 23916 KB n=500
30 Correct 17 ms 23916 KB n=500
31 Correct 17 ms 23916 KB n=500
32 Correct 17 ms 23916 KB n=500
33 Correct 17 ms 23916 KB n=500
34 Correct 18 ms 23916 KB n=500
35 Correct 18 ms 24044 KB n=500
36 Correct 17 ms 23916 KB n=500
37 Correct 17 ms 23916 KB n=500
38 Correct 17 ms 23916 KB n=500
39 Correct 17 ms 23916 KB n=500
40 Correct 17 ms 23916 KB n=500
41 Correct 17 ms 23916 KB n=500
42 Correct 20 ms 23916 KB n=500
43 Correct 18 ms 24064 KB n=500
44 Correct 17 ms 23916 KB n=500
45 Correct 17 ms 23916 KB n=500
46 Correct 19 ms 23916 KB n=500
47 Correct 17 ms 23916 KB n=500
48 Correct 17 ms 23916 KB n=500
49 Correct 17 ms 23916 KB n=500
50 Correct 17 ms 23916 KB n=500
51 Correct 17 ms 23916 KB n=500
52 Correct 17 ms 23916 KB n=500
53 Correct 17 ms 23916 KB n=500
54 Correct 17 ms 23916 KB n=500
55 Correct 16 ms 23916 KB n=278
56 Correct 17 ms 23916 KB n=500
57 Correct 18 ms 24044 KB n=500
58 Correct 17 ms 23936 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 23788 KB n=5
2 Correct 16 ms 23916 KB n=100
3 Correct 16 ms 23916 KB n=100
4 Correct 16 ms 23916 KB n=100
5 Correct 18 ms 23916 KB n=100
6 Correct 16 ms 23916 KB n=100
7 Correct 16 ms 23916 KB n=100
8 Correct 16 ms 23916 KB n=100
9 Correct 16 ms 23916 KB n=100
10 Correct 16 ms 23908 KB n=100
11 Correct 16 ms 23916 KB n=100
12 Correct 16 ms 23916 KB n=100
13 Correct 16 ms 23916 KB n=100
14 Correct 16 ms 23916 KB n=100
15 Correct 16 ms 23916 KB n=100
16 Correct 16 ms 23936 KB n=100
17 Correct 17 ms 23916 KB n=100
18 Correct 17 ms 23916 KB n=100
19 Correct 16 ms 23916 KB n=100
20 Correct 16 ms 23916 KB n=100
21 Correct 16 ms 23916 KB n=100
22 Correct 16 ms 23916 KB n=100
23 Correct 16 ms 23916 KB n=100
24 Correct 16 ms 23916 KB n=100
25 Correct 16 ms 23916 KB n=100
26 Correct 16 ms 23788 KB n=12
27 Correct 16 ms 23916 KB n=100
28 Correct 17 ms 23916 KB n=500
29 Correct 17 ms 23916 KB n=500
30 Correct 17 ms 23916 KB n=500
31 Correct 17 ms 23916 KB n=500
32 Correct 17 ms 23916 KB n=500
33 Correct 17 ms 23916 KB n=500
34 Correct 18 ms 23916 KB n=500
35 Correct 18 ms 24044 KB n=500
36 Correct 17 ms 23916 KB n=500
37 Correct 17 ms 23916 KB n=500
38 Correct 17 ms 23916 KB n=500
39 Correct 17 ms 23916 KB n=500
40 Correct 17 ms 23916 KB n=500
41 Correct 17 ms 23916 KB n=500
42 Correct 20 ms 23916 KB n=500
43 Correct 18 ms 24064 KB n=500
44 Correct 17 ms 23916 KB n=500
45 Correct 17 ms 23916 KB n=500
46 Correct 19 ms 23916 KB n=500
47 Correct 17 ms 23916 KB n=500
48 Correct 17 ms 23916 KB n=500
49 Correct 17 ms 23916 KB n=500
50 Correct 17 ms 23916 KB n=500
51 Correct 17 ms 23916 KB n=500
52 Correct 17 ms 23916 KB n=500
53 Correct 17 ms 23916 KB n=500
54 Correct 17 ms 23916 KB n=500
55 Correct 16 ms 23916 KB n=278
56 Correct 17 ms 23916 KB n=500
57 Correct 18 ms 24044 KB n=500
58 Correct 17 ms 23936 KB n=500
59 Correct 20 ms 24300 KB n=2000
60 Correct 20 ms 24428 KB n=2000
61 Correct 20 ms 24300 KB n=2000
62 Correct 20 ms 24300 KB n=2000
63 Correct 20 ms 24300 KB n=2000
64 Correct 20 ms 24308 KB n=2000
65 Correct 20 ms 24300 KB n=2000
66 Correct 20 ms 24428 KB n=2000
67 Correct 21 ms 24300 KB n=2000
68 Correct 20 ms 24444 KB n=2000
69 Correct 19 ms 24300 KB n=2000
70 Correct 19 ms 24300 KB n=2000
71 Correct 19 ms 24300 KB n=2000
72 Correct 20 ms 24300 KB n=2000
73 Correct 19 ms 24300 KB n=2000
74 Correct 20 ms 24300 KB n=1844
75 Correct 19 ms 24300 KB n=2000
76 Correct 20 ms 24300 KB n=2000
77 Correct 21 ms 24320 KB n=2000
78 Correct 20 ms 24300 KB n=2000
79 Correct 20 ms 24300 KB n=2000
80 Correct 20 ms 24428 KB n=2000
81 Correct 22 ms 24300 KB n=2000
82 Correct 20 ms 24300 KB n=2000
83 Correct 21 ms 24420 KB n=2000
84 Correct 20 ms 24428 KB n=2000
85 Correct 21 ms 24300 KB n=2000
86 Correct 20 ms 24300 KB n=2000
87 Correct 20 ms 24300 KB n=2000
88 Correct 20 ms 24428 KB n=2000
89 Correct 19 ms 24428 KB n=2000
90 Correct 20 ms 24428 KB n=2000
91 Correct 19 ms 24300 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 23788 KB n=5
2 Correct 16 ms 23916 KB n=100
3 Correct 16 ms 23916 KB n=100
4 Correct 16 ms 23916 KB n=100
5 Correct 18 ms 23916 KB n=100
6 Correct 16 ms 23916 KB n=100
7 Correct 16 ms 23916 KB n=100
8 Correct 16 ms 23916 KB n=100
9 Correct 16 ms 23916 KB n=100
10 Correct 16 ms 23908 KB n=100
11 Correct 16 ms 23916 KB n=100
12 Correct 16 ms 23916 KB n=100
13 Correct 16 ms 23916 KB n=100
14 Correct 16 ms 23916 KB n=100
15 Correct 16 ms 23916 KB n=100
16 Correct 16 ms 23936 KB n=100
17 Correct 17 ms 23916 KB n=100
18 Correct 17 ms 23916 KB n=100
19 Correct 16 ms 23916 KB n=100
20 Correct 16 ms 23916 KB n=100
21 Correct 16 ms 23916 KB n=100
22 Correct 16 ms 23916 KB n=100
23 Correct 16 ms 23916 KB n=100
24 Correct 16 ms 23916 KB n=100
25 Correct 16 ms 23916 KB n=100
26 Correct 16 ms 23788 KB n=12
27 Correct 16 ms 23916 KB n=100
28 Correct 17 ms 23916 KB n=500
29 Correct 17 ms 23916 KB n=500
30 Correct 17 ms 23916 KB n=500
31 Correct 17 ms 23916 KB n=500
32 Correct 17 ms 23916 KB n=500
33 Correct 17 ms 23916 KB n=500
34 Correct 18 ms 23916 KB n=500
35 Correct 18 ms 24044 KB n=500
36 Correct 17 ms 23916 KB n=500
37 Correct 17 ms 23916 KB n=500
38 Correct 17 ms 23916 KB n=500
39 Correct 17 ms 23916 KB n=500
40 Correct 17 ms 23916 KB n=500
41 Correct 17 ms 23916 KB n=500
42 Correct 20 ms 23916 KB n=500
43 Correct 18 ms 24064 KB n=500
44 Correct 17 ms 23916 KB n=500
45 Correct 17 ms 23916 KB n=500
46 Correct 19 ms 23916 KB n=500
47 Correct 17 ms 23916 KB n=500
48 Correct 17 ms 23916 KB n=500
49 Correct 17 ms 23916 KB n=500
50 Correct 17 ms 23916 KB n=500
51 Correct 17 ms 23916 KB n=500
52 Correct 17 ms 23916 KB n=500
53 Correct 17 ms 23916 KB n=500
54 Correct 17 ms 23916 KB n=500
55 Correct 16 ms 23916 KB n=278
56 Correct 17 ms 23916 KB n=500
57 Correct 18 ms 24044 KB n=500
58 Correct 17 ms 23936 KB n=500
59 Correct 20 ms 24300 KB n=2000
60 Correct 20 ms 24428 KB n=2000
61 Correct 20 ms 24300 KB n=2000
62 Correct 20 ms 24300 KB n=2000
63 Correct 20 ms 24300 KB n=2000
64 Correct 20 ms 24308 KB n=2000
65 Correct 20 ms 24300 KB n=2000
66 Correct 20 ms 24428 KB n=2000
67 Correct 21 ms 24300 KB n=2000
68 Correct 20 ms 24444 KB n=2000
69 Correct 19 ms 24300 KB n=2000
70 Correct 19 ms 24300 KB n=2000
71 Correct 19 ms 24300 KB n=2000
72 Correct 20 ms 24300 KB n=2000
73 Correct 19 ms 24300 KB n=2000
74 Correct 20 ms 24300 KB n=1844
75 Correct 19 ms 24300 KB n=2000
76 Correct 20 ms 24300 KB n=2000
77 Correct 21 ms 24320 KB n=2000
78 Correct 20 ms 24300 KB n=2000
79 Correct 20 ms 24300 KB n=2000
80 Correct 20 ms 24428 KB n=2000
81 Correct 22 ms 24300 KB n=2000
82 Correct 20 ms 24300 KB n=2000
83 Correct 21 ms 24420 KB n=2000
84 Correct 20 ms 24428 KB n=2000
85 Correct 21 ms 24300 KB n=2000
86 Correct 20 ms 24300 KB n=2000
87 Correct 20 ms 24300 KB n=2000
88 Correct 20 ms 24428 KB n=2000
89 Correct 19 ms 24428 KB n=2000
90 Correct 20 ms 24428 KB n=2000
91 Correct 19 ms 24300 KB n=2000
92 Correct 879 ms 69456 KB n=200000
93 Correct 1180 ms 81900 KB n=200000
94 Correct 1136 ms 87492 KB n=200000
95 Correct 823 ms 73600 KB n=200000
96 Correct 832 ms 73776 KB n=200000
97 Correct 1197 ms 80300 KB n=200000
98 Correct 841 ms 73816 KB n=200000
99 Correct 1033 ms 73960 KB n=200000
100 Correct 847 ms 73692 KB n=200000
101 Correct 1110 ms 89444 KB n=200000
102 Correct 492 ms 74852 KB n=200000
103 Correct 496 ms 74828 KB n=200000
104 Correct 500 ms 74856 KB n=200000
105 Correct 518 ms 75236 KB n=200000
106 Correct 506 ms 75364 KB n=200000
107 Correct 513 ms 75364 KB n=200000
108 Correct 920 ms 73828 KB n=200000
109 Correct 916 ms 73828 KB n=200000
110 Correct 942 ms 73828 KB n=200000
111 Correct 888 ms 73304 KB n=200000
112 Correct 1121 ms 88036 KB n=200000
113 Correct 1212 ms 80488 KB n=200000
114 Correct 879 ms 73300 KB n=200000
115 Correct 1252 ms 76900 KB n=200000
116 Correct 773 ms 73848 KB n=200000
117 Correct 1107 ms 88700 KB n=200000
118 Correct 1202 ms 78564 KB n=200000
119 Correct 769 ms 73812 KB n=200000
120 Correct 1074 ms 88548 KB n=200000
121 Correct 1065 ms 88588 KB n=200000
122 Correct 1058 ms 88932 KB n=200000
123 Correct 519 ms 74980 KB n=200000
124 Correct 269 ms 39268 KB n=25264