oj.uz

Submission #316724

# Submission time Handle Problem Language Result Execution time Memory
316724 2020-10-27T14:46:17 Z vitkishloh228 Birthday gift (IZhO18_treearray) C++14
100 / 100
 2237 ms 82488 KB 
#include <bits/stdc++.h>
#include <algorithm>
#include <string.h>
#include <iostream>
#include <stdio.h>
#include <vector>
#include <queue>
#include <cmath>
#include <set>
#include <map>
 
using namespace std;
 
#define N 200010
#define ff first
#define ss second
#define ll long long
#define pb push_back
#define mod 1000000007
#define pii pair <int, int>
#define sz(a) int(a.size())
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
ll bigmod(ll a,ll e) {if(e==0)return 1;ll x=bigmod(a*a%mod,e>>1);return e&1?x*a%mod:x;}
 
set <pii> S[N];
int n, m, q, a, b;
vector <int> E[N];
int L[N], Pr[N][30], v[N];
 
void dfs(int nd, int pr)
{
    L[nd] = L[pr] + 1;
    Pr[nd][0] = pr;
 
    for(auto i: E[nd]) if(i != pr) dfs(i, nd);
}
 
int lca(int a, int b)
{
    if(L[a] < L[b]) swap(a, b);
 
    for(int i = 20; i >= 0; i--) 
        if(L[a] - (1<<i) >= L[b])
            a = Pr[a][i];
 
    if(a == b) return a;
 
    for(int i = 20; i >= 0; i--)
        if(Pr[a][i] != Pr[b][i])
            a = Pr[a][i], b = Pr[b][i];
 
    return Pr[a][0];
}
 
int main()
{
    cin >> n >> m >> q;
 
    for(int i = 1; i < n; i++) {
        cin >> a >> b;
 
        E[a].pb(b);
        E[b].pb(a);
    }
 
    dfs(1, 0);
 
    for(int i = 1; (1<<i) <= n; i++)
        for(int h = 1; h <= n; h++)
            Pr[h][i] = Pr[Pr[h][i-1]][i-1];
 
    for(int i = 1; i <= m; i++) cin >> v[i];
 
    for(int i = 1; i < m; i++) S[lca(v[i], v[i+1])].insert({i, 1});
 
    for(int i = 1; i <= m; i++) S[v[i]].insert({i, 0});
 
    while(q--) {
        int tp;
        cin >> tp;
 
        if(tp == 1) {
            int pos, x;
            cin >> pos >> x;
 
            if(pos != 1) {
                int Lca = lca(v[pos-1], v[pos]);
                S[Lca].erase({pos-1, 1});
 
                Lca = lca(v[pos-1], x);
                S[Lca].insert({pos-1, 1});
            }
            if(pos != n) {
                int Lca = lca(v[pos+1], v[pos]);
                S[Lca].erase({pos, 1});
 
                Lca = lca(v[pos+1], x);
                S[Lca].insert({pos, 1});
            }
 
            S[v[pos]].erase({pos, 0});
            v[pos] = x;
            S[v[pos]].insert({pos, 0});
        } else {
            int l, r, x;
            cin >> l >> r >> x;
 
            pii in = *S[x].lower_bound({l, 0});
 
            if(in.ff+in.ss <= r && in.ff >= l) cout << in.ff << " " << in.ff+in.ss << "\n";
            else cout << "-1 -1\n";
        }
    }
}

Compilation message

treearray.cpp:23: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
   23 | #pragma GCC optimization ("O3")
      | 
treearray.cpp:24: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
   24 | #pragma GCC optimization ("unroll-loops")
      |

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14464 KB n=5
2 Correct 10 ms 14496 KB n=100
3 Correct 11 ms 14592 KB n=100
4 Correct 11 ms 14464 KB n=100
5 Correct 10 ms 14464 KB n=100
6 Correct 11 ms 14464 KB n=100
7 Correct 10 ms 14464 KB n=100
8 Correct 10 ms 14464 KB n=100
9 Correct 10 ms 14464 KB n=100
10 Correct 11 ms 14464 KB n=100
11 Correct 10 ms 14464 KB n=100
12 Correct 11 ms 14464 KB n=100
13 Correct 11 ms 14464 KB n=100
14 Correct 10 ms 14464 KB n=100
15 Correct 10 ms 14464 KB n=100
16 Correct 11 ms 14592 KB n=100
17 Correct 10 ms 14464 KB n=100
18 Correct 12 ms 14464 KB n=100
19 Correct 10 ms 14464 KB n=100
20 Correct 11 ms 14464 KB n=100
21 Correct 10 ms 14464 KB n=100
22 Correct 10 ms 14464 KB n=100
23 Correct 10 ms 14464 KB n=100
24 Correct 10 ms 14464 KB n=100
25 Correct 10 ms 14464 KB n=100
26 Correct 10 ms 14464 KB n=12
27 Correct 10 ms 14464 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14464 KB n=5
2 Correct 10 ms 14496 KB n=100
3 Correct 11 ms 14592 KB n=100
4 Correct 11 ms 14464 KB n=100
5 Correct 10 ms 14464 KB n=100
6 Correct 11 ms 14464 KB n=100
7 Correct 10 ms 14464 KB n=100
8 Correct 10 ms 14464 KB n=100
9 Correct 10 ms 14464 KB n=100
10 Correct 11 ms 14464 KB n=100
11 Correct 10 ms 14464 KB n=100
12 Correct 11 ms 14464 KB n=100
13 Correct 11 ms 14464 KB n=100
14 Correct 10 ms 14464 KB n=100
15 Correct 10 ms 14464 KB n=100
16 Correct 11 ms 14592 KB n=100
17 Correct 10 ms 14464 KB n=100
18 Correct 12 ms 14464 KB n=100
19 Correct 10 ms 14464 KB n=100
20 Correct 11 ms 14464 KB n=100
21 Correct 10 ms 14464 KB n=100
22 Correct 10 ms 14464 KB n=100
23 Correct 10 ms 14464 KB n=100
24 Correct 10 ms 14464 KB n=100
25 Correct 10 ms 14464 KB n=100
26 Correct 10 ms 14464 KB n=12
27 Correct 10 ms 14464 KB n=100
28 Correct 13 ms 14592 KB n=500
29 Correct 12 ms 14592 KB n=500
30 Correct 12 ms 14592 KB n=500
31 Correct 14 ms 14592 KB n=500
32 Correct 15 ms 14592 KB n=500
33 Correct 12 ms 14592 KB n=500
34 Correct 12 ms 14592 KB n=500
35 Correct 12 ms 14592 KB n=500
36 Correct 12 ms 14592 KB n=500
37 Correct 14 ms 14592 KB n=500
38 Correct 13 ms 14496 KB n=500
39 Correct 13 ms 14592 KB n=500
40 Correct 13 ms 14592 KB n=500
41 Correct 13 ms 14592 KB n=500
42 Correct 12 ms 14592 KB n=500
43 Correct 12 ms 14592 KB n=500
44 Correct 13 ms 14592 KB n=500
45 Correct 13 ms 14592 KB n=500
46 Correct 12 ms 14592 KB n=500
47 Correct 13 ms 14592 KB n=500
48 Correct 12 ms 14592 KB n=500
49 Correct 13 ms 14592 KB n=500
50 Correct 12 ms 14592 KB n=500
51 Correct 13 ms 14592 KB n=500
52 Correct 13 ms 14592 KB n=500
53 Correct 12 ms 14592 KB n=500
54 Correct 12 ms 14592 KB n=500
55 Correct 11 ms 14464 KB n=278
56 Correct 12 ms 14592 KB n=500
57 Correct 12 ms 14592 KB n=500
58 Correct 13 ms 14592 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14464 KB n=5
2 Correct 10 ms 14496 KB n=100
3 Correct 11 ms 14592 KB n=100
4 Correct 11 ms 14464 KB n=100
5 Correct 10 ms 14464 KB n=100
6 Correct 11 ms 14464 KB n=100
7 Correct 10 ms 14464 KB n=100
8 Correct 10 ms 14464 KB n=100
9 Correct 10 ms 14464 KB n=100
10 Correct 11 ms 14464 KB n=100
11 Correct 10 ms 14464 KB n=100
12 Correct 11 ms 14464 KB n=100
13 Correct 11 ms 14464 KB n=100
14 Correct 10 ms 14464 KB n=100
15 Correct 10 ms 14464 KB n=100
16 Correct 11 ms 14592 KB n=100
17 Correct 10 ms 14464 KB n=100
18 Correct 12 ms 14464 KB n=100
19 Correct 10 ms 14464 KB n=100
20 Correct 11 ms 14464 KB n=100
21 Correct 10 ms 14464 KB n=100
22 Correct 10 ms 14464 KB n=100
23 Correct 10 ms 14464 KB n=100
24 Correct 10 ms 14464 KB n=100
25 Correct 10 ms 14464 KB n=100
26 Correct 10 ms 14464 KB n=12
27 Correct 10 ms 14464 KB n=100
28 Correct 13 ms 14592 KB n=500
29 Correct 12 ms 14592 KB n=500
30 Correct 12 ms 14592 KB n=500
31 Correct 14 ms 14592 KB n=500
32 Correct 15 ms 14592 KB n=500
33 Correct 12 ms 14592 KB n=500
34 Correct 12 ms 14592 KB n=500
35 Correct 12 ms 14592 KB n=500
36 Correct 12 ms 14592 KB n=500
37 Correct 14 ms 14592 KB n=500
38 Correct 13 ms 14496 KB n=500
39 Correct 13 ms 14592 KB n=500
40 Correct 13 ms 14592 KB n=500
41 Correct 13 ms 14592 KB n=500
42 Correct 12 ms 14592 KB n=500
43 Correct 12 ms 14592 KB n=500
44 Correct 13 ms 14592 KB n=500
45 Correct 13 ms 14592 KB n=500
46 Correct 12 ms 14592 KB n=500
47 Correct 13 ms 14592 KB n=500
48 Correct 12 ms 14592 KB n=500
49 Correct 13 ms 14592 KB n=500
50 Correct 12 ms 14592 KB n=500
51 Correct 13 ms 14592 KB n=500
52 Correct 13 ms 14592 KB n=500
53 Correct 12 ms 14592 KB n=500
54 Correct 12 ms 14592 KB n=500
55 Correct 11 ms 14464 KB n=278
56 Correct 12 ms 14592 KB n=500
57 Correct 12 ms 14592 KB n=500
58 Correct 13 ms 14592 KB n=500
59 Correct 20 ms 14976 KB n=2000
60 Correct 20 ms 15104 KB n=2000
61 Correct 22 ms 15104 KB n=2000
62 Correct 21 ms 14976 KB n=2000
63 Correct 20 ms 14976 KB n=2000
64 Correct 21 ms 15008 KB n=2000
65 Correct 21 ms 14976 KB n=2000
66 Correct 21 ms 15104 KB n=2000
67 Correct 21 ms 14976 KB n=2000
68 Correct 21 ms 14976 KB n=2000
69 Correct 21 ms 14976 KB n=2000
70 Correct 23 ms 14976 KB n=2000
71 Correct 21 ms 14968 KB n=2000
72 Correct 21 ms 14976 KB n=2000
73 Correct 21 ms 14976 KB n=2000
74 Correct 19 ms 14976 KB n=1844
75 Correct 22 ms 15104 KB n=2000
76 Correct 21 ms 14976 KB n=2000
77 Correct 20 ms 14976 KB n=2000
78 Correct 21 ms 14976 KB n=2000
79 Correct 20 ms 14976 KB n=2000
80 Correct 21 ms 15104 KB n=2000
81 Correct 21 ms 14976 KB n=2000
82 Correct 20 ms 14976 KB n=2000
83 Correct 21 ms 15104 KB n=2000
84 Correct 20 ms 14976 KB n=2000
85 Correct 21 ms 14976 KB n=2000
86 Correct 21 ms 14976 KB n=2000
87 Correct 20 ms 14976 KB n=2000
88 Correct 20 ms 15104 KB n=2000
89 Correct 20 ms 15104 KB n=2000
90 Correct 20 ms 15104 KB n=2000
91 Correct 22 ms 14976 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14464 KB n=5
2 Correct 10 ms 14496 KB n=100
3 Correct 11 ms 14592 KB n=100
4 Correct 11 ms 14464 KB n=100
5 Correct 10 ms 14464 KB n=100
6 Correct 11 ms 14464 KB n=100
7 Correct 10 ms 14464 KB n=100
8 Correct 10 ms 14464 KB n=100
9 Correct 10 ms 14464 KB n=100
10 Correct 11 ms 14464 KB n=100
11 Correct 10 ms 14464 KB n=100
12 Correct 11 ms 14464 KB n=100
13 Correct 11 ms 14464 KB n=100
14 Correct 10 ms 14464 KB n=100
15 Correct 10 ms 14464 KB n=100
16 Correct 11 ms 14592 KB n=100
17 Correct 10 ms 14464 KB n=100
18 Correct 12 ms 14464 KB n=100
19 Correct 10 ms 14464 KB n=100
20 Correct 11 ms 14464 KB n=100
21 Correct 10 ms 14464 KB n=100
22 Correct 10 ms 14464 KB n=100
23 Correct 10 ms 14464 KB n=100
24 Correct 10 ms 14464 KB n=100
25 Correct 10 ms 14464 KB n=100
26 Correct 10 ms 14464 KB n=12
27 Correct 10 ms 14464 KB n=100
28 Correct 13 ms 14592 KB n=500
29 Correct 12 ms 14592 KB n=500
30 Correct 12 ms 14592 KB n=500
31 Correct 14 ms 14592 KB n=500
32 Correct 15 ms 14592 KB n=500
33 Correct 12 ms 14592 KB n=500
34 Correct 12 ms 14592 KB n=500
35 Correct 12 ms 14592 KB n=500
36 Correct 12 ms 14592 KB n=500
37 Correct 14 ms 14592 KB n=500
38 Correct 13 ms 14496 KB n=500
39 Correct 13 ms 14592 KB n=500
40 Correct 13 ms 14592 KB n=500
41 Correct 13 ms 14592 KB n=500
42 Correct 12 ms 14592 KB n=500
43 Correct 12 ms 14592 KB n=500
44 Correct 13 ms 14592 KB n=500
45 Correct 13 ms 14592 KB n=500
46 Correct 12 ms 14592 KB n=500
47 Correct 13 ms 14592 KB n=500
48 Correct 12 ms 14592 KB n=500
49 Correct 13 ms 14592 KB n=500
50 Correct 12 ms 14592 KB n=500
51 Correct 13 ms 14592 KB n=500
52 Correct 13 ms 14592 KB n=500
53 Correct 12 ms 14592 KB n=500
54 Correct 12 ms 14592 KB n=500
55 Correct 11 ms 14464 KB n=278
56 Correct 12 ms 14592 KB n=500
57 Correct 12 ms 14592 KB n=500
58 Correct 13 ms 14592 KB n=500
59 Correct 20 ms 14976 KB n=2000
60 Correct 20 ms 15104 KB n=2000
61 Correct 22 ms 15104 KB n=2000
62 Correct 21 ms 14976 KB n=2000
63 Correct 20 ms 14976 KB n=2000
64 Correct 21 ms 15008 KB n=2000
65 Correct 21 ms 14976 KB n=2000
66 Correct 21 ms 15104 KB n=2000
67 Correct 21 ms 14976 KB n=2000
68 Correct 21 ms 14976 KB n=2000
69 Correct 21 ms 14976 KB n=2000
70 Correct 23 ms 14976 KB n=2000
71 Correct 21 ms 14968 KB n=2000
72 Correct 21 ms 14976 KB n=2000
73 Correct 21 ms 14976 KB n=2000
74 Correct 19 ms 14976 KB n=1844
75 Correct 22 ms 15104 KB n=2000
76 Correct 21 ms 14976 KB n=2000
77 Correct 20 ms 14976 KB n=2000
78 Correct 21 ms 14976 KB n=2000
79 Correct 20 ms 14976 KB n=2000
80 Correct 21 ms 15104 KB n=2000
81 Correct 21 ms 14976 KB n=2000
82 Correct 20 ms 14976 KB n=2000
83 Correct 21 ms 15104 KB n=2000
84 Correct 20 ms 14976 KB n=2000
85 Correct 21 ms 14976 KB n=2000
86 Correct 21 ms 14976 KB n=2000
87 Correct 20 ms 14976 KB n=2000
88 Correct 20 ms 15104 KB n=2000
89 Correct 20 ms 15104 KB n=2000
90 Correct 20 ms 15104 KB n=2000
91 Correct 22 ms 14976 KB n=2000
92 Correct 1617 ms 73280 KB n=200000
93 Correct 2120 ms 77900 KB n=200000
94 Correct 2050 ms 81372 KB n=200000
95 Correct 1580 ms 72812 KB n=200000
96 Correct 1621 ms 72940 KB n=200000
97 Correct 2130 ms 77036 KB n=200000
98 Correct 1599 ms 72812 KB n=200000
99 Correct 1914 ms 73000 KB n=200000
100 Correct 1600 ms 72848 KB n=200000
101 Correct 2066 ms 82488 KB n=200000
102 Correct 1490 ms 74068 KB n=200000
103 Correct 1491 ms 74104 KB n=200000
104 Correct 1478 ms 73980 KB n=200000
105 Correct 1527 ms 74488 KB n=200000
106 Correct 1532 ms 74436 KB n=200000
107 Correct 1528 ms 74520 KB n=200000
108 Correct 1743 ms 72848 KB n=200000
109 Correct 1768 ms 73000 KB n=200000
110 Correct 1749 ms 72904 KB n=200000
111 Correct 1609 ms 72428 KB n=200000
112 Correct 2017 ms 81528 KB n=200000
113 Correct 2074 ms 76920 KB n=200000
114 Correct 1611 ms 72428 KB n=200000
115 Correct 2237 ms 75000 KB n=200000
116 Correct 1547 ms 73068 KB n=200000
117 Correct 2003 ms 81920 KB n=200000
118 Correct 2091 ms 75768 KB n=200000
119 Correct 1551 ms 73164 KB n=200000
120 Correct 1931 ms 81568 KB n=200000
121 Correct 1964 ms 81672 KB n=200000
122 Correct 1941 ms 82092 KB n=200000
123 Correct 1560 ms 74488 KB n=200000
124 Correct 504 ms 30456 KB n=25264