oj.uz

Submission #1007765

# Submission time Handle Problem Language Result Execution time Memory
1007765 2024-06-25T12:45:08 Z ByeWorld Birthday gift (IZhO18_treearray) C++14
100 / 100
 770 ms 104016 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("O3", "unroll-loops")
#define ll long long
#define int long long
#define pb push_back
#define fi first
#define se second
#define lf (id<<1)
#define rg ((id<<1)|1)
#define md ((l+r)>>1)
#define ld long double
using namespace std;
typedef pair<int,int> pii;
typedef pair<pii, int> ipii;
const int MAXN = 2e5+10;
const int MAXA = 2e3+10;
const int INF = 1e18+10;
const int LOG = 19;
const int MOD = 1e9+7;
const int SQRT = 450;
const vector<int> NOL = {};
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const vector<int> dx = {1, -1, 0, 0};
const vector<int> dy = {0, 0, 1, -1};

int n, m, q;
int a[MAXN];
vector <int> adj[MAXN];
bool b[MAXN];
int anc[MAXN][LOG+5], dep[MAXN];
set <int> s[MAXN], t[MAXN];

void dfs(int nw, int par){
    anc[nw][0] = par; dep[nw] = dep[par]+1;
    for(auto nx : adj[nw]){
        if(nx==par) continue;
        dfs(nx, nw);
    }
}
int LCA(int x, int y){
    if(dep[x] > dep[y]) swap(x, y);
    for(int i=LOG-1; i>=0; i--){
        if(dep[anc[y][i]] >= dep[x])
            y = anc[y][i];
    }
    if(x==y) return x;
    for(int i=LOG-1; i>=0; i--){
        if(anc[x][i] != anc[y][i]){
            x = anc[x][i]; y = anc[y][i];
        }
    }
    return anc[x][0];
}
signed main(){
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    cin >> n >> m >> q;
    for(int i=1; i<=n-1; i++){
        int x, y; cin >> x >> y;
        adj[x].pb(y); adj[y].pb(x);
    }
    dfs(1, 0);
    for(int j=1; j<LOG; j++)
        for(int i=1; i<=n; i++)
            anc[i][j] = anc[anc[i][j-1]][j-1];

    for(int i=1; i<=m; i++) cin >> a[i];
    for(int i=1; i<=m; i++){
        s[a[i]].insert(i);
        if(i!=m) t[LCA(a[i], a[i+1])].insert(i);
    }
    for(int xx=1; xx<=q; xx++){
        int ty; cin >> ty;
        if(ty==1){
            int p, x; cin >> p >> x;
            s[a[p]].erase(p); 
            if(p != 1) t[LCA(a[p-1], a[p])].erase(p-1);
            if(p != m) t[LCA(a[p], a[p+1])].erase(p);
            
            a[p] = x;
            s[a[p]].insert(p); 
            if(p != 1) t[LCA(a[p-1], a[p])].insert(p-1);
            if(p != m) t[LCA(a[p], a[p+1])].insert(p);
            
            continue;
        }

        int l, r, x; cin >> l >> r >> x;
        auto it = s[x].lower_bound(l);
        if(it!=s[x].end() && l<=(*it) && (*it)<=r){
            cout << (*it) << ' ' << (*it) << '\n';
            continue;
        }
        it = t[x].lower_bound(l);
        if(it!=t[x].end() && l<=(*it) && (*it)+1<=r){
            cout << (*it) << ' ' << (*it)+1 << '\n';
            continue;
        }
        cout << "-1 -1\n"; 
    }
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 27228 KB n=5
2 Correct 4 ms 27228 KB n=100
3 Correct 4 ms 27228 KB n=100
4 Correct 4 ms 27280 KB n=100
5 Correct 4 ms 27228 KB n=100
6 Correct 4 ms 27228 KB n=100
7 Correct 4 ms 27228 KB n=100
8 Correct 4 ms 27228 KB n=100
9 Correct 4 ms 27228 KB n=100
10 Correct 4 ms 27224 KB n=100
11 Correct 4 ms 27092 KB n=100
12 Correct 5 ms 27228 KB n=100
13 Correct 4 ms 27272 KB n=100
14 Correct 4 ms 27228 KB n=100
15 Correct 4 ms 27228 KB n=100
16 Correct 5 ms 27228 KB n=100
17 Correct 4 ms 27224 KB n=100
18 Correct 4 ms 27272 KB n=100
19 Correct 4 ms 27476 KB n=100
20 Correct 5 ms 27228 KB n=100
21 Correct 4 ms 27224 KB n=100
22 Correct 5 ms 27084 KB n=100
23 Correct 4 ms 27228 KB n=100
24 Correct 4 ms 27224 KB n=100
25 Correct 4 ms 27228 KB n=100
26 Correct 4 ms 27228 KB n=12
27 Correct 4 ms 27224 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 27228 KB n=5
2 Correct 4 ms 27228 KB n=100
3 Correct 4 ms 27228 KB n=100
4 Correct 4 ms 27280 KB n=100
5 Correct 4 ms 27228 KB n=100
6 Correct 4 ms 27228 KB n=100
7 Correct 4 ms 27228 KB n=100
8 Correct 4 ms 27228 KB n=100
9 Correct 4 ms 27228 KB n=100
10 Correct 4 ms 27224 KB n=100
11 Correct 4 ms 27092 KB n=100
12 Correct 5 ms 27228 KB n=100
13 Correct 4 ms 27272 KB n=100
14 Correct 4 ms 27228 KB n=100
15 Correct 4 ms 27228 KB n=100
16 Correct 5 ms 27228 KB n=100
17 Correct 4 ms 27224 KB n=100
18 Correct 4 ms 27272 KB n=100
19 Correct 4 ms 27476 KB n=100
20 Correct 5 ms 27228 KB n=100
21 Correct 4 ms 27224 KB n=100
22 Correct 5 ms 27084 KB n=100
23 Correct 4 ms 27228 KB n=100
24 Correct 4 ms 27224 KB n=100
25 Correct 4 ms 27228 KB n=100
26 Correct 4 ms 27228 KB n=12
27 Correct 4 ms 27224 KB n=100
28 Correct 5 ms 27228 KB n=500
29 Correct 5 ms 27228 KB n=500
30 Correct 5 ms 27228 KB n=500
31 Correct 4 ms 27228 KB n=500
32 Correct 5 ms 27228 KB n=500
33 Correct 4 ms 27336 KB n=500
34 Correct 4 ms 27228 KB n=500
35 Correct 5 ms 27224 KB n=500
36 Correct 4 ms 27228 KB n=500
37 Correct 4 ms 27228 KB n=500
38 Correct 4 ms 27228 KB n=500
39 Correct 4 ms 27324 KB n=500
40 Correct 4 ms 27228 KB n=500
41 Correct 5 ms 27228 KB n=500
42 Correct 4 ms 27228 KB n=500
43 Correct 4 ms 27224 KB n=500
44 Correct 4 ms 27228 KB n=500
45 Correct 4 ms 27224 KB n=500
46 Correct 4 ms 27228 KB n=500
47 Correct 5 ms 27228 KB n=500
48 Correct 4 ms 27228 KB n=500
49 Correct 5 ms 27224 KB n=500
50 Correct 5 ms 27228 KB n=500
51 Correct 5 ms 27228 KB n=500
52 Correct 5 ms 27224 KB n=500
53 Correct 4 ms 27228 KB n=500
54 Correct 4 ms 27228 KB n=500
55 Correct 4 ms 27228 KB n=278
56 Correct 4 ms 27228 KB n=500
57 Correct 5 ms 27228 KB n=500
58 Correct 4 ms 27228 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 27228 KB n=5
2 Correct 4 ms 27228 KB n=100
3 Correct 4 ms 27228 KB n=100
4 Correct 4 ms 27280 KB n=100
5 Correct 4 ms 27228 KB n=100
6 Correct 4 ms 27228 KB n=100
7 Correct 4 ms 27228 KB n=100
8 Correct 4 ms 27228 KB n=100
9 Correct 4 ms 27228 KB n=100
10 Correct 4 ms 27224 KB n=100
11 Correct 4 ms 27092 KB n=100
12 Correct 5 ms 27228 KB n=100
13 Correct 4 ms 27272 KB n=100
14 Correct 4 ms 27228 KB n=100
15 Correct 4 ms 27228 KB n=100
16 Correct 5 ms 27228 KB n=100
17 Correct 4 ms 27224 KB n=100
18 Correct 4 ms 27272 KB n=100
19 Correct 4 ms 27476 KB n=100
20 Correct 5 ms 27228 KB n=100
21 Correct 4 ms 27224 KB n=100
22 Correct 5 ms 27084 KB n=100
23 Correct 4 ms 27228 KB n=100
24 Correct 4 ms 27224 KB n=100
25 Correct 4 ms 27228 KB n=100
26 Correct 4 ms 27228 KB n=12
27 Correct 4 ms 27224 KB n=100
28 Correct 5 ms 27228 KB n=500
29 Correct 5 ms 27228 KB n=500
30 Correct 5 ms 27228 KB n=500
31 Correct 4 ms 27228 KB n=500
32 Correct 5 ms 27228 KB n=500
33 Correct 4 ms 27336 KB n=500
34 Correct 4 ms 27228 KB n=500
35 Correct 5 ms 27224 KB n=500
36 Correct 4 ms 27228 KB n=500
37 Correct 4 ms 27228 KB n=500
38 Correct 4 ms 27228 KB n=500
39 Correct 4 ms 27324 KB n=500
40 Correct 4 ms 27228 KB n=500
41 Correct 5 ms 27228 KB n=500
42 Correct 4 ms 27228 KB n=500
43 Correct 4 ms 27224 KB n=500
44 Correct 4 ms 27228 KB n=500
45 Correct 4 ms 27224 KB n=500
46 Correct 4 ms 27228 KB n=500
47 Correct 5 ms 27228 KB n=500
48 Correct 4 ms 27228 KB n=500
49 Correct 5 ms 27224 KB n=500
50 Correct 5 ms 27228 KB n=500
51 Correct 5 ms 27228 KB n=500
52 Correct 5 ms 27224 KB n=500
53 Correct 4 ms 27228 KB n=500
54 Correct 4 ms 27228 KB n=500
55 Correct 4 ms 27228 KB n=278
56 Correct 4 ms 27228 KB n=500
57 Correct 5 ms 27228 KB n=500
58 Correct 4 ms 27228 KB n=500
59 Correct 7 ms 29532 KB n=2000
60 Correct 6 ms 29532 KB n=2000
61 Correct 6 ms 29532 KB n=2000
62 Correct 7 ms 29528 KB n=2000
63 Correct 6 ms 29532 KB n=2000
64 Correct 7 ms 29532 KB n=2000
65 Correct 6 ms 29532 KB n=2000
66 Correct 6 ms 29532 KB n=2000
67 Correct 7 ms 29532 KB n=2000
68 Correct 6 ms 29532 KB n=2000
69 Correct 6 ms 29528 KB n=2000
70 Correct 6 ms 29532 KB n=2000
71 Correct 5 ms 29624 KB n=2000
72 Correct 5 ms 29532 KB n=2000
73 Correct 5 ms 29528 KB n=2000
74 Correct 5 ms 29532 KB n=1844
75 Correct 5 ms 29532 KB n=2000
76 Correct 6 ms 29608 KB n=2000
77 Correct 7 ms 29780 KB n=2000
78 Correct 6 ms 29532 KB n=2000
79 Correct 7 ms 29532 KB n=2000
80 Correct 6 ms 29532 KB n=2000
81 Correct 7 ms 29644 KB n=2000
82 Correct 7 ms 29528 KB n=2000
83 Correct 7 ms 29580 KB n=2000
84 Correct 7 ms 29532 KB n=2000
85 Correct 8 ms 29532 KB n=2000
86 Correct 6 ms 29528 KB n=2000
87 Correct 6 ms 29784 KB n=2000
88 Correct 6 ms 29672 KB n=2000
89 Correct 7 ms 29532 KB n=2000
90 Correct 6 ms 29544 KB n=2000
91 Correct 6 ms 29532 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 27228 KB n=5
2 Correct 4 ms 27228 KB n=100
3 Correct 4 ms 27228 KB n=100
4 Correct 4 ms 27280 KB n=100
5 Correct 4 ms 27228 KB n=100
6 Correct 4 ms 27228 KB n=100
7 Correct 4 ms 27228 KB n=100
8 Correct 4 ms 27228 KB n=100
9 Correct 4 ms 27228 KB n=100
10 Correct 4 ms 27224 KB n=100
11 Correct 4 ms 27092 KB n=100
12 Correct 5 ms 27228 KB n=100
13 Correct 4 ms 27272 KB n=100
14 Correct 4 ms 27228 KB n=100
15 Correct 4 ms 27228 KB n=100
16 Correct 5 ms 27228 KB n=100
17 Correct 4 ms 27224 KB n=100
18 Correct 4 ms 27272 KB n=100
19 Correct 4 ms 27476 KB n=100
20 Correct 5 ms 27228 KB n=100
21 Correct 4 ms 27224 KB n=100
22 Correct 5 ms 27084 KB n=100
23 Correct 4 ms 27228 KB n=100
24 Correct 4 ms 27224 KB n=100
25 Correct 4 ms 27228 KB n=100
26 Correct 4 ms 27228 KB n=12
27 Correct 4 ms 27224 KB n=100
28 Correct 5 ms 27228 KB n=500
29 Correct 5 ms 27228 KB n=500
30 Correct 5 ms 27228 KB n=500
31 Correct 4 ms 27228 KB n=500
32 Correct 5 ms 27228 KB n=500
33 Correct 4 ms 27336 KB n=500
34 Correct 4 ms 27228 KB n=500
35 Correct 5 ms 27224 KB n=500
36 Correct 4 ms 27228 KB n=500
37 Correct 4 ms 27228 KB n=500
38 Correct 4 ms 27228 KB n=500
39 Correct 4 ms 27324 KB n=500
40 Correct 4 ms 27228 KB n=500
41 Correct 5 ms 27228 KB n=500
42 Correct 4 ms 27228 KB n=500
43 Correct 4 ms 27224 KB n=500
44 Correct 4 ms 27228 KB n=500
45 Correct 4 ms 27224 KB n=500
46 Correct 4 ms 27228 KB n=500
47 Correct 5 ms 27228 KB n=500
48 Correct 4 ms 27228 KB n=500
49 Correct 5 ms 27224 KB n=500
50 Correct 5 ms 27228 KB n=500
51 Correct 5 ms 27228 KB n=500
52 Correct 5 ms 27224 KB n=500
53 Correct 4 ms 27228 KB n=500
54 Correct 4 ms 27228 KB n=500
55 Correct 4 ms 27228 KB n=278
56 Correct 4 ms 27228 KB n=500
57 Correct 5 ms 27228 KB n=500
58 Correct 4 ms 27228 KB n=500
59 Correct 7 ms 29532 KB n=2000
60 Correct 6 ms 29532 KB n=2000
61 Correct 6 ms 29532 KB n=2000
62 Correct 7 ms 29528 KB n=2000
63 Correct 6 ms 29532 KB n=2000
64 Correct 7 ms 29532 KB n=2000
65 Correct 6 ms 29532 KB n=2000
66 Correct 6 ms 29532 KB n=2000
67 Correct 7 ms 29532 KB n=2000
68 Correct 6 ms 29532 KB n=2000
69 Correct 6 ms 29528 KB n=2000
70 Correct 6 ms 29532 KB n=2000
71 Correct 5 ms 29624 KB n=2000
72 Correct 5 ms 29532 KB n=2000
73 Correct 5 ms 29528 KB n=2000
74 Correct 5 ms 29532 KB n=1844
75 Correct 5 ms 29532 KB n=2000
76 Correct 6 ms 29608 KB n=2000
77 Correct 7 ms 29780 KB n=2000
78 Correct 6 ms 29532 KB n=2000
79 Correct 7 ms 29532 KB n=2000
80 Correct 6 ms 29532 KB n=2000
81 Correct 7 ms 29644 KB n=2000
82 Correct 7 ms 29528 KB n=2000
83 Correct 7 ms 29580 KB n=2000
84 Correct 7 ms 29532 KB n=2000
85 Correct 8 ms 29532 KB n=2000
86 Correct 6 ms 29528 KB n=2000
87 Correct 6 ms 29784 KB n=2000
88 Correct 6 ms 29672 KB n=2000
89 Correct 7 ms 29532 KB n=2000
90 Correct 6 ms 29544 KB n=2000
91 Correct 6 ms 29532 KB n=2000
92 Correct 429 ms 95564 KB n=200000
93 Correct 720 ms 101968 KB n=200000
94 Correct 735 ms 103504 KB n=200000
95 Correct 423 ms 98752 KB n=200000
96 Correct 374 ms 98920 KB n=200000
97 Correct 665 ms 101568 KB n=200000
98 Correct 411 ms 98964 KB n=200000
99 Correct 532 ms 99208 KB n=200000
100 Correct 395 ms 98944 KB n=200000
101 Correct 770 ms 104016 KB n=200000
102 Correct 255 ms 100248 KB n=200000
103 Correct 256 ms 100180 KB n=200000
104 Correct 249 ms 100176 KB n=200000
105 Correct 287 ms 100688 KB n=200000
106 Correct 238 ms 100760 KB n=200000
107 Correct 262 ms 100692 KB n=200000
108 Correct 469 ms 99152 KB n=200000
109 Correct 476 ms 99156 KB n=200000
110 Correct 503 ms 99156 KB n=200000
111 Correct 429 ms 98320 KB n=200000
112 Correct 708 ms 103760 KB n=200000
113 Correct 656 ms 101676 KB n=200000
114 Correct 403 ms 98496 KB n=200000
115 Correct 627 ms 100432 KB n=200000
116 Correct 418 ms 99064 KB n=200000
117 Correct 726 ms 103760 KB n=200000
118 Correct 652 ms 100960 KB n=200000
119 Correct 421 ms 98952 KB n=200000
120 Correct 676 ms 102992 KB n=200000
121 Correct 738 ms 102796 KB n=200000
122 Correct 756 ms 103300 KB n=200000
123 Correct 245 ms 100432 KB n=200000
124 Correct 123 ms 45572 KB n=25264