oj.uz

Submission #495917

# Submission time Handle Problem Language Result Execution time Memory
495917 2021-12-20T07:51:35 Z armashka Birthday gift (IZhO18_treearray) C++17
100 / 100
 1202 ms 121260 KB 
#include <bits/stdc++.h>
 
//#pragma comment(linker, "/stack:200000000")
//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
 
#define fast ios_base::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);
#define all(v) v.begin(),v.end()
#define pb push_back
#define sz size()
#define ft first
#define sd second
 
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
typedef unsigned long long ull;
 
const int N = 3e5 + 5;
const ll M = 1e8;
const ll inf = 1e3;
const ll mod = 1e9;
const double Pi = acos(-1); 
 
ll binpow(ll x, ll ti) { ll res = 1;while (ti){if(ti & 1)res *= x;x *= x;ti >>= 1; x %= mod; res %= mod;} return res;}
ll binmul(ll x, ll ti) { ll res = 0;while (ti){if(ti & 1)res += x;x += x;ti >>= 1; x %= mod; res %= mod;} return res;}
ll nok(ll a, ll b) { return (a*b)/__gcd(abs(a),abs(b)) * (a*b > 0 ? 1 : -1); }
bool odd(ll n) { return (n % 2 == 1); }
bool even(ll n) { return (n % 2 == 0); }            
 
ll n, m, q, a[N], d[N], len, up[N][30];
vector <ll> g[N], order;
set <ll> st[N], ss[N];
 
void dfs(ll v, ll pr) {
    up[v][0] = pr;
    for (auto to : g[v]) {
        if (to != pr) {
            d[to] = d[v] + 1;
            dfs(to, v);
        }
    }
}

ll lift(ll v, ll time) {
    for (int i = 0; i <= 25; ++ i) {
        if (time & (1 << i)) v = up[v][i];
    }
    return v;
}

ll get_lca(ll u, ll v) {
    if (d[u] < d[v]) swap(u, v);
    u = lift(u, d[u] - d[v]);
    if (u == v) return u;
    for (int i = 25; i >= 0; -- i) {
        if (up[v][i] != up[u][i]) {
            v = up[v][i], u = up[u][i];
        }
    }
    return up[v][0];
}

 
const void solve(/*Armashka*/) {
    cin >> n >> m >> q;
    for (int i = 1; i < n; ++ i) {
        ll u, v;
        cin >> u >> v;
        g[u].pb(v);
        g[v].pb(u);
    }
    dfs(1, -1);
    
    for (int i = 1; i <= 25; ++ i) {
        for (int v = 1; v <= n; ++ v) {
            up[v][i] = up[up[v][i - 1]][i - 1]; 
        }
    }

    for (int i = 1; i <= m; ++ i) cin >> a[i];
    for (int i = 1; i < m; ++ i) {
        ll lca = get_lca(a[i], a[i + 1]);
        st[lca].insert(i);
        ss[a[i]].insert(i);
    }
    ss[a[m]].insert(m);
    while (q --) {
        ll type;
        cin >> type;
        if (type == 1) {
            ll pos, val;
            cin >> pos >> val;
            if (pos > 1) {
                st[get_lca(a[pos], a[pos - 1])].erase(pos - 1);
            }
            if (pos < m) {
                st[get_lca(a[pos], a[pos + 1])].erase(pos);
            }
            ss[a[pos]].erase(pos);
            a[pos] = val;
            ss[a[pos]].insert(pos);
            if (pos > 1) {
                st[get_lca(a[pos], a[pos - 1])].insert(pos - 1);
            }
            if (pos < m) {
                st[get_lca(a[pos], a[pos + 1])].insert(pos);  
            }
        } else {
            ll L, R, v;
            cin >> L >> R >> v;
            auto pos = st[v].lower_bound(L);
            if (pos != st[v].end() && *pos < R) cout << *pos << " " << *pos + 1 << "\n";
            else {
                auto pos = ss[v].lower_bound(L);
                if (pos != ss[v].end() && *pos <= R) cout << *pos << " " << *pos << "\n";
                else cout << "-1 -1\n";
            }
        }
    }
}
 
signed main() {
    fast;
    //freopen("divide.in", "r", stdin);
    //freopen("divide.out", "w", stdout);
    int tt = 1;
    //cin >> tt;
    while (tt --) {
        solve();
    }
}
 
/*
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

# Verdict Execution time Memory Grader output
1 Correct 17 ms 35532 KB n=5
2 Correct 17 ms 35492 KB n=100
3 Correct 17 ms 35532 KB n=100
4 Correct 18 ms 35608 KB n=100
5 Correct 17 ms 35588 KB n=100
6 Correct 17 ms 35532 KB n=100
7 Correct 16 ms 35532 KB n=100
8 Correct 16 ms 35532 KB n=100
9 Correct 17 ms 35532 KB n=100
10 Correct 19 ms 35500 KB n=100
11 Correct 18 ms 35540 KB n=100
12 Correct 16 ms 35576 KB n=100
13 Correct 16 ms 35532 KB n=100
14 Correct 17 ms 35600 KB n=100
15 Correct 18 ms 35552 KB n=100
16 Correct 16 ms 35536 KB n=100
17 Correct 18 ms 35580 KB n=100
18 Correct 18 ms 35584 KB n=100
19 Correct 18 ms 35660 KB n=100
20 Correct 17 ms 35532 KB n=100
21 Correct 16 ms 35532 KB n=100
22 Correct 18 ms 35596 KB n=100
23 Correct 18 ms 35596 KB n=100
24 Correct 18 ms 35576 KB n=100
25 Correct 19 ms 35532 KB n=100
26 Correct 17 ms 35512 KB n=12
27 Correct 16 ms 35532 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 35532 KB n=5
2 Correct 17 ms 35492 KB n=100
3 Correct 17 ms 35532 KB n=100
4 Correct 18 ms 35608 KB n=100
5 Correct 17 ms 35588 KB n=100
6 Correct 17 ms 35532 KB n=100
7 Correct 16 ms 35532 KB n=100
8 Correct 16 ms 35532 KB n=100
9 Correct 17 ms 35532 KB n=100
10 Correct 19 ms 35500 KB n=100
11 Correct 18 ms 35540 KB n=100
12 Correct 16 ms 35576 KB n=100
13 Correct 16 ms 35532 KB n=100
14 Correct 17 ms 35600 KB n=100
15 Correct 18 ms 35552 KB n=100
16 Correct 16 ms 35536 KB n=100
17 Correct 18 ms 35580 KB n=100
18 Correct 18 ms 35584 KB n=100
19 Correct 18 ms 35660 KB n=100
20 Correct 17 ms 35532 KB n=100
21 Correct 16 ms 35532 KB n=100
22 Correct 18 ms 35596 KB n=100
23 Correct 18 ms 35596 KB n=100
24 Correct 18 ms 35576 KB n=100
25 Correct 19 ms 35532 KB n=100
26 Correct 17 ms 35512 KB n=12
27 Correct 16 ms 35532 KB n=100
28 Correct 16 ms 35660 KB n=500
29 Correct 18 ms 35772 KB n=500
30 Correct 17 ms 35660 KB n=500
31 Correct 18 ms 35740 KB n=500
32 Correct 19 ms 35660 KB n=500
33 Correct 18 ms 35660 KB n=500
34 Correct 18 ms 35660 KB n=500
35 Correct 18 ms 35660 KB n=500
36 Correct 19 ms 35660 KB n=500
37 Correct 17 ms 35660 KB n=500
38 Correct 17 ms 35660 KB n=500
39 Correct 17 ms 35672 KB n=500
40 Correct 22 ms 35660 KB n=500
41 Correct 19 ms 35740 KB n=500
42 Correct 18 ms 35660 KB n=500
43 Correct 18 ms 35660 KB n=500
44 Correct 18 ms 35676 KB n=500
45 Correct 21 ms 35660 KB n=500
46 Correct 19 ms 35660 KB n=500
47 Correct 17 ms 35660 KB n=500
48 Correct 18 ms 35752 KB n=500
49 Correct 18 ms 35656 KB n=500
50 Correct 20 ms 35660 KB n=500
51 Correct 17 ms 35756 KB n=500
52 Correct 18 ms 35748 KB n=500
53 Correct 19 ms 35660 KB n=500
54 Correct 19 ms 35660 KB n=500
55 Correct 18 ms 35660 KB n=278
56 Correct 18 ms 35660 KB n=500
57 Correct 18 ms 35772 KB n=500
58 Correct 17 ms 35660 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 35532 KB n=5
2 Correct 17 ms 35492 KB n=100
3 Correct 17 ms 35532 KB n=100
4 Correct 18 ms 35608 KB n=100
5 Correct 17 ms 35588 KB n=100
6 Correct 17 ms 35532 KB n=100
7 Correct 16 ms 35532 KB n=100
8 Correct 16 ms 35532 KB n=100
9 Correct 17 ms 35532 KB n=100
10 Correct 19 ms 35500 KB n=100
11 Correct 18 ms 35540 KB n=100
12 Correct 16 ms 35576 KB n=100
13 Correct 16 ms 35532 KB n=100
14 Correct 17 ms 35600 KB n=100
15 Correct 18 ms 35552 KB n=100
16 Correct 16 ms 35536 KB n=100
17 Correct 18 ms 35580 KB n=100
18 Correct 18 ms 35584 KB n=100
19 Correct 18 ms 35660 KB n=100
20 Correct 17 ms 35532 KB n=100
21 Correct 16 ms 35532 KB n=100
22 Correct 18 ms 35596 KB n=100
23 Correct 18 ms 35596 KB n=100
24 Correct 18 ms 35576 KB n=100
25 Correct 19 ms 35532 KB n=100
26 Correct 17 ms 35512 KB n=12
27 Correct 16 ms 35532 KB n=100
28 Correct 16 ms 35660 KB n=500
29 Correct 18 ms 35772 KB n=500
30 Correct 17 ms 35660 KB n=500
31 Correct 18 ms 35740 KB n=500
32 Correct 19 ms 35660 KB n=500
33 Correct 18 ms 35660 KB n=500
34 Correct 18 ms 35660 KB n=500
35 Correct 18 ms 35660 KB n=500
36 Correct 19 ms 35660 KB n=500
37 Correct 17 ms 35660 KB n=500
38 Correct 17 ms 35660 KB n=500
39 Correct 17 ms 35672 KB n=500
40 Correct 22 ms 35660 KB n=500
41 Correct 19 ms 35740 KB n=500
42 Correct 18 ms 35660 KB n=500
43 Correct 18 ms 35660 KB n=500
44 Correct 18 ms 35676 KB n=500
45 Correct 21 ms 35660 KB n=500
46 Correct 19 ms 35660 KB n=500
47 Correct 17 ms 35660 KB n=500
48 Correct 18 ms 35752 KB n=500
49 Correct 18 ms 35656 KB n=500
50 Correct 20 ms 35660 KB n=500
51 Correct 17 ms 35756 KB n=500
52 Correct 18 ms 35748 KB n=500
53 Correct 19 ms 35660 KB n=500
54 Correct 19 ms 35660 KB n=500
55 Correct 18 ms 35660 KB n=278
56 Correct 18 ms 35660 KB n=500
57 Correct 18 ms 35772 KB n=500
58 Correct 17 ms 35660 KB n=500
59 Correct 20 ms 36248 KB n=2000
60 Correct 21 ms 36408 KB n=2000
61 Correct 24 ms 36292 KB n=2000
62 Correct 28 ms 36300 KB n=2000
63 Correct 21 ms 36300 KB n=2000
64 Correct 20 ms 36372 KB n=2000
65 Correct 21 ms 36268 KB n=2000
66 Correct 22 ms 36336 KB n=2000
67 Correct 22 ms 36432 KB n=2000
68 Correct 21 ms 36300 KB n=2000
69 Correct 21 ms 36288 KB n=2000
70 Correct 20 ms 36300 KB n=2000
71 Correct 19 ms 36356 KB n=2000
72 Correct 20 ms 36292 KB n=2000
73 Correct 19 ms 36300 KB n=2000
74 Correct 20 ms 36300 KB n=1844
75 Correct 19 ms 36284 KB n=2000
76 Correct 20 ms 36300 KB n=2000
77 Correct 21 ms 36288 KB n=2000
78 Correct 21 ms 36300 KB n=2000
79 Correct 22 ms 36332 KB n=2000
80 Correct 20 ms 36292 KB n=2000
81 Correct 20 ms 36364 KB n=2000
82 Correct 20 ms 36300 KB n=2000
83 Correct 21 ms 36384 KB n=2000
84 Correct 20 ms 36300 KB n=2000
85 Correct 22 ms 36336 KB n=2000
86 Correct 21 ms 36352 KB n=2000
87 Correct 20 ms 36344 KB n=2000
88 Correct 26 ms 36404 KB n=2000
89 Correct 22 ms 36300 KB n=2000
90 Correct 22 ms 36300 KB n=2000
91 Correct 20 ms 36300 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 35532 KB n=5
2 Correct 17 ms 35492 KB n=100
3 Correct 17 ms 35532 KB n=100
4 Correct 18 ms 35608 KB n=100
5 Correct 17 ms 35588 KB n=100
6 Correct 17 ms 35532 KB n=100
7 Correct 16 ms 35532 KB n=100
8 Correct 16 ms 35532 KB n=100
9 Correct 17 ms 35532 KB n=100
10 Correct 19 ms 35500 KB n=100
11 Correct 18 ms 35540 KB n=100
12 Correct 16 ms 35576 KB n=100
13 Correct 16 ms 35532 KB n=100
14 Correct 17 ms 35600 KB n=100
15 Correct 18 ms 35552 KB n=100
16 Correct 16 ms 35536 KB n=100
17 Correct 18 ms 35580 KB n=100
18 Correct 18 ms 35584 KB n=100
19 Correct 18 ms 35660 KB n=100
20 Correct 17 ms 35532 KB n=100
21 Correct 16 ms 35532 KB n=100
22 Correct 18 ms 35596 KB n=100
23 Correct 18 ms 35596 KB n=100
24 Correct 18 ms 35576 KB n=100
25 Correct 19 ms 35532 KB n=100
26 Correct 17 ms 35512 KB n=12
27 Correct 16 ms 35532 KB n=100
28 Correct 16 ms 35660 KB n=500
29 Correct 18 ms 35772 KB n=500
30 Correct 17 ms 35660 KB n=500
31 Correct 18 ms 35740 KB n=500
32 Correct 19 ms 35660 KB n=500
33 Correct 18 ms 35660 KB n=500
34 Correct 18 ms 35660 KB n=500
35 Correct 18 ms 35660 KB n=500
36 Correct 19 ms 35660 KB n=500
37 Correct 17 ms 35660 KB n=500
38 Correct 17 ms 35660 KB n=500
39 Correct 17 ms 35672 KB n=500
40 Correct 22 ms 35660 KB n=500
41 Correct 19 ms 35740 KB n=500
42 Correct 18 ms 35660 KB n=500
43 Correct 18 ms 35660 KB n=500
44 Correct 18 ms 35676 KB n=500
45 Correct 21 ms 35660 KB n=500
46 Correct 19 ms 35660 KB n=500
47 Correct 17 ms 35660 KB n=500
48 Correct 18 ms 35752 KB n=500
49 Correct 18 ms 35656 KB n=500
50 Correct 20 ms 35660 KB n=500
51 Correct 17 ms 35756 KB n=500
52 Correct 18 ms 35748 KB n=500
53 Correct 19 ms 35660 KB n=500
54 Correct 19 ms 35660 KB n=500
55 Correct 18 ms 35660 KB n=278
56 Correct 18 ms 35660 KB n=500
57 Correct 18 ms 35772 KB n=500
58 Correct 17 ms 35660 KB n=500
59 Correct 20 ms 36248 KB n=2000
60 Correct 21 ms 36408 KB n=2000
61 Correct 24 ms 36292 KB n=2000
62 Correct 28 ms 36300 KB n=2000
63 Correct 21 ms 36300 KB n=2000
64 Correct 20 ms 36372 KB n=2000
65 Correct 21 ms 36268 KB n=2000
66 Correct 22 ms 36336 KB n=2000
67 Correct 22 ms 36432 KB n=2000
68 Correct 21 ms 36300 KB n=2000
69 Correct 21 ms 36288 KB n=2000
70 Correct 20 ms 36300 KB n=2000
71 Correct 19 ms 36356 KB n=2000
72 Correct 20 ms 36292 KB n=2000
73 Correct 19 ms 36300 KB n=2000
74 Correct 20 ms 36300 KB n=1844
75 Correct 19 ms 36284 KB n=2000
76 Correct 20 ms 36300 KB n=2000
77 Correct 21 ms 36288 KB n=2000
78 Correct 21 ms 36300 KB n=2000
79 Correct 22 ms 36332 KB n=2000
80 Correct 20 ms 36292 KB n=2000
81 Correct 20 ms 36364 KB n=2000
82 Correct 20 ms 36300 KB n=2000
83 Correct 21 ms 36384 KB n=2000
84 Correct 20 ms 36300 KB n=2000
85 Correct 22 ms 36336 KB n=2000
86 Correct 21 ms 36352 KB n=2000
87 Correct 20 ms 36344 KB n=2000
88 Correct 26 ms 36404 KB n=2000
89 Correct 22 ms 36300 KB n=2000
90 Correct 22 ms 36300 KB n=2000
91 Correct 20 ms 36300 KB n=2000
92 Correct 748 ms 113496 KB n=200000
93 Correct 1092 ms 117272 KB n=200000
94 Correct 1041 ms 120116 KB n=200000
95 Correct 748 ms 113556 KB n=200000
96 Correct 863 ms 113348 KB n=200000
97 Correct 1131 ms 116392 KB n=200000
98 Correct 971 ms 113344 KB n=200000
99 Correct 1127 ms 112956 KB n=200000
100 Correct 887 ms 113252 KB n=200000
101 Correct 1068 ms 120952 KB n=200000
102 Correct 502 ms 114544 KB n=200000
103 Correct 480 ms 114588 KB n=200000
104 Correct 497 ms 114444 KB n=200000
105 Correct 498 ms 114260 KB n=200000
106 Correct 496 ms 114364 KB n=200000
107 Correct 472 ms 114244 KB n=200000
108 Correct 857 ms 113252 KB n=200000
109 Correct 938 ms 113288 KB n=200000
110 Correct 876 ms 113228 KB n=200000
111 Correct 866 ms 113376 KB n=200000
112 Correct 1014 ms 120448 KB n=200000
113 Correct 1135 ms 116248 KB n=200000
114 Correct 860 ms 113368 KB n=200000
115 Correct 1202 ms 114520 KB n=200000
116 Correct 722 ms 113164 KB n=200000
117 Correct 1028 ms 120508 KB n=200000
118 Correct 1082 ms 115244 KB n=200000
119 Correct 722 ms 113020 KB n=200000
120 Correct 1022 ms 120676 KB n=200000
121 Correct 967 ms 120760 KB n=200000
122 Correct 971 ms 121260 KB n=200000
123 Correct 482 ms 113892 KB n=200000
124 Correct 256 ms 52888 KB n=25264