oj.uz

Submission #755565

# Submission time Handle Problem Language Result Execution time Memory
755565 2023-06-10T11:05:16 Z teokakabadze Birthday gift (IZhO18_treearray) C++17
100 / 100
 1609 ms 141968 KB 
#include<bits/stdc++.h>
#define f first
#define s second
#define pb push_back
#define int long long
#define N 400005
#define M 1000000007
#define pii pair<int, int>
#define piii pair<pii, int>
using namespace std;

int n, m, q, t, c[N], h[N], k[N][30], l[N], pos, val, L, R;
vector<int> v[N];
multiset<int> s[N], s1[N];
multiset<int> :: iterator it;

void dfs(int u, int p)
{
    h[u] = h[p] + 1;
    k[u][0] = p;
    for(auto x : v[u])
    if(x != p) dfs(x, u);
}

int lca(int a, int b)
{
    int i;
    if(h[a] < h[b]) swap(a, b);
    for(i = 20; i >= 0; i--)
    if(h[k[a][i]] >= h[b]) a = k[a][i];
    if(a == b) return a;
    for(i = 20; i >= 0; i--)
    if(k[a][i] != k[b][i]) a = k[a][i], b = k[b][i];
    return k[a][0];
}

main()
{
    std::ios::sync_with_stdio(0);
    cin.tie();
    
    int a, b, i, j;
    cin >> n >> m >> q;
    for(i = 1; i < n; i++)
    {
        cin >> a >> b;
        v[a].pb(b);
        v[b].pb(a);
    }
    dfs(1, 0);
    for(j = 1; j <= 20; j++)
    for(i = 1; i <= n; i++)
    k[i][j] = k[k[i][j - 1]][j - 1];
    for(i = 1; i <= m; i++)
    {
        cin >> c[i];
        s[c[i]].insert(i);
        if(i > 1) l[i] = lca(c[i], c[i - 1]);
        s1[l[i]].insert(i);
    }
    while(q--)
    {
        cin >> t;
        if(t == 1)
        {
            cin >> pos >> val;
            it = s[c[pos]].lower_bound(pos);
            if(it != s[c[pos]].end()) s[c[pos]].erase(it);
            c[pos] = val;
            s[val].insert(pos);
            
            it = s1[l[pos]].lower_bound(pos);
            if(it != s1[l[pos]].end()) s1[l[pos]].erase(it);
            l[pos] = lca(c[pos], c[pos - 1]);
            s1[l[pos]].insert(pos);
            
            it = s1[l[pos + 1]].lower_bound(pos + 1);
            if(it != s1[l[pos + 1]].end()) s1[l[pos + 1]].erase(it);
            l[pos + 1] = lca(c[pos + 1], c[pos]);
            s1[l[pos + 1]].insert(pos + 1);
        }
        else
        {
            cin >> L >> R >> val;
            it = s[val].lower_bound(L);
            if(it != s[val].end() && *it <= R) { cout << *it << ' ' << *it << '\n'; continue; }
            it = s1[val].lower_bound(L + 1);
            if(it != s1[val].end() && *it <= R) cout << *it - 1 << ' ' << *it << '\n';
            else cout << "-1 -1\n";
        }
    }
}

Compilation message

treearray.cpp:37:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   37 | main()
      | ^~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 47316 KB n=5
2 Correct 25 ms 47336 KB n=100
3 Correct 23 ms 47288 KB n=100
4 Correct 23 ms 47316 KB n=100
5 Correct 27 ms 47308 KB n=100
6 Correct 25 ms 47332 KB n=100
7 Correct 23 ms 47316 KB n=100
8 Correct 25 ms 47300 KB n=100
9 Correct 24 ms 47316 KB n=100
10 Correct 22 ms 47316 KB n=100
11 Correct 23 ms 47292 KB n=100
12 Correct 27 ms 47276 KB n=100
13 Correct 25 ms 47360 KB n=100
14 Correct 25 ms 47316 KB n=100
15 Correct 25 ms 47256 KB n=100
16 Correct 26 ms 47304 KB n=100
17 Correct 24 ms 47308 KB n=100
18 Correct 26 ms 47244 KB n=100
19 Correct 27 ms 47240 KB n=100
20 Correct 25 ms 47300 KB n=100
21 Correct 25 ms 47316 KB n=100
22 Correct 22 ms 47292 KB n=100
23 Correct 24 ms 47312 KB n=100
24 Correct 25 ms 47292 KB n=100
25 Correct 30 ms 47336 KB n=100
26 Correct 24 ms 47280 KB n=12
27 Correct 24 ms 47304 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 47316 KB n=5
2 Correct 25 ms 47336 KB n=100
3 Correct 23 ms 47288 KB n=100
4 Correct 23 ms 47316 KB n=100
5 Correct 27 ms 47308 KB n=100
6 Correct 25 ms 47332 KB n=100
7 Correct 23 ms 47316 KB n=100
8 Correct 25 ms 47300 KB n=100
9 Correct 24 ms 47316 KB n=100
10 Correct 22 ms 47316 KB n=100
11 Correct 23 ms 47292 KB n=100
12 Correct 27 ms 47276 KB n=100
13 Correct 25 ms 47360 KB n=100
14 Correct 25 ms 47316 KB n=100
15 Correct 25 ms 47256 KB n=100
16 Correct 26 ms 47304 KB n=100
17 Correct 24 ms 47308 KB n=100
18 Correct 26 ms 47244 KB n=100
19 Correct 27 ms 47240 KB n=100
20 Correct 25 ms 47300 KB n=100
21 Correct 25 ms 47316 KB n=100
22 Correct 22 ms 47292 KB n=100
23 Correct 24 ms 47312 KB n=100
24 Correct 25 ms 47292 KB n=100
25 Correct 30 ms 47336 KB n=100
26 Correct 24 ms 47280 KB n=12
27 Correct 24 ms 47304 KB n=100
28 Correct 25 ms 47496 KB n=500
29 Correct 22 ms 47444 KB n=500
30 Correct 25 ms 47436 KB n=500
31 Correct 26 ms 47444 KB n=500
32 Correct 25 ms 47424 KB n=500
33 Correct 25 ms 47444 KB n=500
34 Correct 24 ms 47412 KB n=500
35 Correct 24 ms 47424 KB n=500
36 Correct 25 ms 47436 KB n=500
37 Correct 24 ms 47436 KB n=500
38 Correct 24 ms 47452 KB n=500
39 Correct 24 ms 47432 KB n=500
40 Correct 25 ms 47436 KB n=500
41 Correct 25 ms 47428 KB n=500
42 Correct 26 ms 47444 KB n=500
43 Correct 25 ms 47472 KB n=500
44 Correct 26 ms 47396 KB n=500
45 Correct 24 ms 47436 KB n=500
46 Correct 24 ms 47432 KB n=500
47 Correct 25 ms 47476 KB n=500
48 Correct 26 ms 47468 KB n=500
49 Correct 24 ms 47444 KB n=500
50 Correct 24 ms 47428 KB n=500
51 Correct 24 ms 47440 KB n=500
52 Correct 24 ms 47512 KB n=500
53 Correct 25 ms 47444 KB n=500
54 Correct 29 ms 47452 KB n=500
55 Correct 25 ms 47388 KB n=278
56 Correct 26 ms 47444 KB n=500
57 Correct 25 ms 47492 KB n=500
58 Correct 28 ms 47400 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 47316 KB n=5
2 Correct 25 ms 47336 KB n=100
3 Correct 23 ms 47288 KB n=100
4 Correct 23 ms 47316 KB n=100
5 Correct 27 ms 47308 KB n=100
6 Correct 25 ms 47332 KB n=100
7 Correct 23 ms 47316 KB n=100
8 Correct 25 ms 47300 KB n=100
9 Correct 24 ms 47316 KB n=100
10 Correct 22 ms 47316 KB n=100
11 Correct 23 ms 47292 KB n=100
12 Correct 27 ms 47276 KB n=100
13 Correct 25 ms 47360 KB n=100
14 Correct 25 ms 47316 KB n=100
15 Correct 25 ms 47256 KB n=100
16 Correct 26 ms 47304 KB n=100
17 Correct 24 ms 47308 KB n=100
18 Correct 26 ms 47244 KB n=100
19 Correct 27 ms 47240 KB n=100
20 Correct 25 ms 47300 KB n=100
21 Correct 25 ms 47316 KB n=100
22 Correct 22 ms 47292 KB n=100
23 Correct 24 ms 47312 KB n=100
24 Correct 25 ms 47292 KB n=100
25 Correct 30 ms 47336 KB n=100
26 Correct 24 ms 47280 KB n=12
27 Correct 24 ms 47304 KB n=100
28 Correct 25 ms 47496 KB n=500
29 Correct 22 ms 47444 KB n=500
30 Correct 25 ms 47436 KB n=500
31 Correct 26 ms 47444 KB n=500
32 Correct 25 ms 47424 KB n=500
33 Correct 25 ms 47444 KB n=500
34 Correct 24 ms 47412 KB n=500
35 Correct 24 ms 47424 KB n=500
36 Correct 25 ms 47436 KB n=500
37 Correct 24 ms 47436 KB n=500
38 Correct 24 ms 47452 KB n=500
39 Correct 24 ms 47432 KB n=500
40 Correct 25 ms 47436 KB n=500
41 Correct 25 ms 47428 KB n=500
42 Correct 26 ms 47444 KB n=500
43 Correct 25 ms 47472 KB n=500
44 Correct 26 ms 47396 KB n=500
45 Correct 24 ms 47436 KB n=500
46 Correct 24 ms 47432 KB n=500
47 Correct 25 ms 47476 KB n=500
48 Correct 26 ms 47468 KB n=500
49 Correct 24 ms 47444 KB n=500
50 Correct 24 ms 47428 KB n=500
51 Correct 24 ms 47440 KB n=500
52 Correct 24 ms 47512 KB n=500
53 Correct 25 ms 47444 KB n=500
54 Correct 29 ms 47452 KB n=500
55 Correct 25 ms 47388 KB n=278
56 Correct 26 ms 47444 KB n=500
57 Correct 25 ms 47492 KB n=500
58 Correct 28 ms 47400 KB n=500
59 Correct 29 ms 48064 KB n=2000
60 Correct 29 ms 48212 KB n=2000
61 Correct 27 ms 48160 KB n=2000
62 Correct 27 ms 48172 KB n=2000
63 Correct 30 ms 48084 KB n=2000
64 Correct 33 ms 48060 KB n=2000
65 Correct 29 ms 48076 KB n=2000
66 Correct 28 ms 48200 KB n=2000
67 Correct 29 ms 48084 KB n=2000
68 Correct 29 ms 48060 KB n=2000
69 Correct 36 ms 48140 KB n=2000
70 Correct 31 ms 48176 KB n=2000
71 Correct 28 ms 48076 KB n=2000
72 Correct 27 ms 48140 KB n=2000
73 Correct 28 ms 48148 KB n=2000
74 Correct 28 ms 48080 KB n=1844
75 Correct 28 ms 48128 KB n=2000
76 Correct 29 ms 48140 KB n=2000
77 Correct 27 ms 48168 KB n=2000
78 Correct 35 ms 48084 KB n=2000
79 Correct 29 ms 48144 KB n=2000
80 Correct 27 ms 48160 KB n=2000
81 Correct 30 ms 48076 KB n=2000
82 Correct 29 ms 48136 KB n=2000
83 Correct 28 ms 48212 KB n=2000
84 Correct 30 ms 48136 KB n=2000
85 Correct 31 ms 48080 KB n=2000
86 Correct 29 ms 48204 KB n=2000
87 Correct 29 ms 48084 KB n=2000
88 Correct 27 ms 48212 KB n=2000
89 Correct 29 ms 48228 KB n=2000
90 Correct 32 ms 48212 KB n=2000
91 Correct 30 ms 48140 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 47316 KB n=5
2 Correct 25 ms 47336 KB n=100
3 Correct 23 ms 47288 KB n=100
4 Correct 23 ms 47316 KB n=100
5 Correct 27 ms 47308 KB n=100
6 Correct 25 ms 47332 KB n=100
7 Correct 23 ms 47316 KB n=100
8 Correct 25 ms 47300 KB n=100
9 Correct 24 ms 47316 KB n=100
10 Correct 22 ms 47316 KB n=100
11 Correct 23 ms 47292 KB n=100
12 Correct 27 ms 47276 KB n=100
13 Correct 25 ms 47360 KB n=100
14 Correct 25 ms 47316 KB n=100
15 Correct 25 ms 47256 KB n=100
16 Correct 26 ms 47304 KB n=100
17 Correct 24 ms 47308 KB n=100
18 Correct 26 ms 47244 KB n=100
19 Correct 27 ms 47240 KB n=100
20 Correct 25 ms 47300 KB n=100
21 Correct 25 ms 47316 KB n=100
22 Correct 22 ms 47292 KB n=100
23 Correct 24 ms 47312 KB n=100
24 Correct 25 ms 47292 KB n=100
25 Correct 30 ms 47336 KB n=100
26 Correct 24 ms 47280 KB n=12
27 Correct 24 ms 47304 KB n=100
28 Correct 25 ms 47496 KB n=500
29 Correct 22 ms 47444 KB n=500
30 Correct 25 ms 47436 KB n=500
31 Correct 26 ms 47444 KB n=500
32 Correct 25 ms 47424 KB n=500
33 Correct 25 ms 47444 KB n=500
34 Correct 24 ms 47412 KB n=500
35 Correct 24 ms 47424 KB n=500
36 Correct 25 ms 47436 KB n=500
37 Correct 24 ms 47436 KB n=500
38 Correct 24 ms 47452 KB n=500
39 Correct 24 ms 47432 KB n=500
40 Correct 25 ms 47436 KB n=500
41 Correct 25 ms 47428 KB n=500
42 Correct 26 ms 47444 KB n=500
43 Correct 25 ms 47472 KB n=500
44 Correct 26 ms 47396 KB n=500
45 Correct 24 ms 47436 KB n=500
46 Correct 24 ms 47432 KB n=500
47 Correct 25 ms 47476 KB n=500
48 Correct 26 ms 47468 KB n=500
49 Correct 24 ms 47444 KB n=500
50 Correct 24 ms 47428 KB n=500
51 Correct 24 ms 47440 KB n=500
52 Correct 24 ms 47512 KB n=500
53 Correct 25 ms 47444 KB n=500
54 Correct 29 ms 47452 KB n=500
55 Correct 25 ms 47388 KB n=278
56 Correct 26 ms 47444 KB n=500
57 Correct 25 ms 47492 KB n=500
58 Correct 28 ms 47400 KB n=500
59 Correct 29 ms 48064 KB n=2000
60 Correct 29 ms 48212 KB n=2000
61 Correct 27 ms 48160 KB n=2000
62 Correct 27 ms 48172 KB n=2000
63 Correct 30 ms 48084 KB n=2000
64 Correct 33 ms 48060 KB n=2000
65 Correct 29 ms 48076 KB n=2000
66 Correct 28 ms 48200 KB n=2000
67 Correct 29 ms 48084 KB n=2000
68 Correct 29 ms 48060 KB n=2000
69 Correct 36 ms 48140 KB n=2000
70 Correct 31 ms 48176 KB n=2000
71 Correct 28 ms 48076 KB n=2000
72 Correct 27 ms 48140 KB n=2000
73 Correct 28 ms 48148 KB n=2000
74 Correct 28 ms 48080 KB n=1844
75 Correct 28 ms 48128 KB n=2000
76 Correct 29 ms 48140 KB n=2000
77 Correct 27 ms 48168 KB n=2000
78 Correct 35 ms 48084 KB n=2000
79 Correct 29 ms 48144 KB n=2000
80 Correct 27 ms 48160 KB n=2000
81 Correct 30 ms 48076 KB n=2000
82 Correct 29 ms 48136 KB n=2000
83 Correct 28 ms 48212 KB n=2000
84 Correct 30 ms 48136 KB n=2000
85 Correct 31 ms 48080 KB n=2000
86 Correct 29 ms 48204 KB n=2000
87 Correct 29 ms 48084 KB n=2000
88 Correct 27 ms 48212 KB n=2000
89 Correct 29 ms 48228 KB n=2000
90 Correct 32 ms 48212 KB n=2000
91 Correct 30 ms 48140 KB n=2000
92 Correct 880 ms 133456 KB n=200000
93 Correct 1401 ms 138252 KB n=200000
94 Correct 1263 ms 141072 KB n=200000
95 Correct 927 ms 133040 KB n=200000
96 Correct 881 ms 133048 KB n=200000
97 Correct 1609 ms 137296 KB n=200000
98 Correct 967 ms 133076 KB n=200000
99 Correct 1347 ms 133656 KB n=200000
100 Correct 920 ms 133088 KB n=200000
101 Correct 1327 ms 141968 KB n=200000
102 Correct 804 ms 134604 KB n=200000
103 Correct 760 ms 134472 KB n=200000
104 Correct 820 ms 134628 KB n=200000
105 Correct 867 ms 134952 KB n=200000
106 Correct 801 ms 134952 KB n=200000
107 Correct 746 ms 134884 KB n=200000
108 Correct 1066 ms 133364 KB n=200000
109 Correct 1119 ms 133500 KB n=200000
110 Correct 1059 ms 133368 KB n=200000
111 Correct 912 ms 132672 KB n=200000
112 Correct 1313 ms 141316 KB n=200000
113 Correct 1406 ms 137396 KB n=200000
114 Correct 931 ms 132716 KB n=200000
115 Correct 1548 ms 135396 KB n=200000
116 Correct 884 ms 133256 KB n=200000
117 Correct 1234 ms 141496 KB n=200000
118 Correct 1478 ms 136256 KB n=200000
119 Correct 883 ms 133176 KB n=200000
120 Correct 1188 ms 141116 KB n=200000
121 Correct 1266 ms 140960 KB n=200000
122 Correct 1182 ms 141240 KB n=200000
123 Correct 806 ms 134644 KB n=200000
124 Correct 371 ms 67404 KB n=25264