oj.uz

Submission #1087353

# Submission time Handle Problem Language Result Execution time Memory
1087353 2024-09-12T14:23:06 Z coldbr3w Tourism (JOI23_tourism) C++17
28 / 100
 5000 ms 32340 KB 
#include <bits/stdc++.h>
using namespace std;
 
#define ll long long
#define pll pair<long long, long long>
#define pb push_back
#define F first
#define S second  
#define all(x) (x).begin(), (x).end()
 
const ll N = 3e5 + 100;
const ll inf = 1e18;
const ll mod = 1e9 + 7;
const ll block = 350;
ll n,m,q,timer=0;
vector<ll>adj[N];
ll up[N][20], d[N], tin[N], a[N];
void pre_dfs(ll u, ll par){
	tin[u] = ++timer;
	for(auto v : adj[u]){
		if(v == par) continue;
		up[v][0] = u;
        for(int i = 1; i <= 19;i++) up[v][i] = up[up[v][i-1]][i-1];
        d[v] = d[u] + 1;
		pre_dfs(v, u);
	}
}
ll lca(ll u, ll v){
    if(d[u] != d[v]){
        if(d[u] < d[v]) swap(u, v);
        ll k = d[u] - d[v];
        for(int i = 19; i >= 0;i--) if(k & (1 << i)) u = up[u][i];
    }
    if(u == v) return u;
    for(int i = 19; i >= 0;i--) if(up[u][i] != up[v][i]) u = up[u][i], v = up[v][i];
    return up[u][0];
}
ll dist(ll u, ll v){return d[u] + d[v] - 2 * d[lca(u, v)];}
void to_thic_cau(){
	cin >> n >> m >> q;
	for(int i = 1; i <= n - 1;i++){
		ll u,v; cin >> u >> v;
		adj[u].pb(v); adj[v].pb(u);
	}
	pre_dfs(1, 0);
	for(int i = 1; i <= m;i++) cin >> a[i];
	while(q--){
		ll l,r; cin >> l >> r;
		vector<ll>v;
		for(int i = l; i <= r;i++) v.pb(a[i]);
		sort(all(v), [&](const ll &a, const ll&b){
			return tin[a] < tin[b];
		});
		ll res = 0;
		for(int i = 1; i < v.size();i++) res += dist(v[i], v[i-1]);
		res += dist(v[0], v.back());
		res /= 2;
		cout << res + 1 << '\n';
	}
}
 
signed main()   
{ 
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	ll tc = 1;
	//cin >> tc;
	while(tc--) to_thic_cau();
}

Compilation message

tourism.cpp: In function 'void to_thic_cau()':
tourism.cpp:55:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |   for(int i = 1; i < v.size();i++) res += dist(v[i], v[i-1]);
      |                  ~~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7512 KB Output is correct
2 Correct 3 ms 7516 KB Output is correct
3 Correct 3 ms 7536 KB Output is correct
4 Correct 4 ms 7516 KB Output is correct
5 Correct 4 ms 7516 KB Output is correct
6 Correct 5 ms 7580 KB Output is correct
7 Correct 4 ms 7512 KB Output is correct
8 Correct 4 ms 7516 KB Output is correct
9 Correct 5 ms 7512 KB Output is correct
10 Correct 5 ms 7768 KB Output is correct
11 Correct 5 ms 7516 KB Output is correct
12 Correct 12 ms 7516 KB Output is correct
13 Correct 9 ms 7516 KB Output is correct
14 Correct 9 ms 7624 KB Output is correct
15 Correct 5 ms 7516 KB Output is correct
16 Correct 5 ms 7516 KB Output is correct
17 Correct 5 ms 7628 KB Output is correct
18 Correct 5 ms 7516 KB Output is correct
19 Correct 5 ms 7512 KB Output is correct
20 Correct 5 ms 7512 KB Output is correct
21 Correct 5 ms 7516 KB Output is correct
22 Correct 5 ms 7480 KB Output is correct
23 Correct 5 ms 7516 KB Output is correct
24 Correct 5 ms 7516 KB Output is correct
25 Correct 5 ms 7516 KB Output is correct
26 Correct 5 ms 7516 KB Output is correct
27 Correct 3 ms 7516 KB Output is correct
28 Correct 3 ms 7516 KB Output is correct
29 Correct 3 ms 7516 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7512 KB Output is correct
2 Correct 3 ms 7516 KB Output is correct
3 Correct 3 ms 7536 KB Output is correct
4 Correct 4 ms 7516 KB Output is correct
5 Correct 4 ms 7516 KB Output is correct
6 Correct 5 ms 7580 KB Output is correct
7 Correct 4 ms 7512 KB Output is correct
8 Correct 4 ms 7516 KB Output is correct
9 Correct 5 ms 7512 KB Output is correct
10 Correct 5 ms 7768 KB Output is correct
11 Correct 5 ms 7516 KB Output is correct
12 Correct 12 ms 7516 KB Output is correct
13 Correct 9 ms 7516 KB Output is correct
14 Correct 9 ms 7624 KB Output is correct
15 Correct 5 ms 7516 KB Output is correct
16 Correct 5 ms 7516 KB Output is correct
17 Correct 5 ms 7628 KB Output is correct
18 Correct 5 ms 7516 KB Output is correct
19 Correct 5 ms 7512 KB Output is correct
20 Correct 5 ms 7512 KB Output is correct
21 Correct 5 ms 7516 KB Output is correct
22 Correct 5 ms 7480 KB Output is correct
23 Correct 5 ms 7516 KB Output is correct
24 Correct 5 ms 7516 KB Output is correct
25 Correct 5 ms 7516 KB Output is correct
26 Correct 5 ms 7516 KB Output is correct
27 Correct 3 ms 7516 KB Output is correct
28 Correct 3 ms 7516 KB Output is correct
29 Correct 3 ms 7516 KB Output is correct
30 Correct 63 ms 7924 KB Output is correct
31 Correct 91 ms 7772 KB Output is correct
32 Correct 126 ms 8024 KB Output is correct
33 Correct 125 ms 8052 KB Output is correct
34 Correct 123 ms 8028 KB Output is correct
35 Correct 342 ms 8024 KB Output is correct
36 Correct 330 ms 8024 KB Output is correct
37 Correct 341 ms 8024 KB Output is correct
38 Correct 91 ms 8120 KB Output is correct
39 Correct 90 ms 8028 KB Output is correct
40 Correct 90 ms 8112 KB Output is correct
41 Correct 260 ms 8024 KB Output is correct
42 Correct 265 ms 8028 KB Output is correct
43 Correct 266 ms 8028 KB Output is correct
44 Correct 91 ms 8056 KB Output is correct
45 Correct 95 ms 8028 KB Output is correct
46 Correct 94 ms 8028 KB Output is correct
47 Correct 271 ms 8028 KB Output is correct
48 Correct 264 ms 8028 KB Output is correct
49 Correct 262 ms 8028 KB Output is correct
50 Correct 120 ms 8024 KB Output is correct
51 Correct 116 ms 8028 KB Output is correct
52 Correct 115 ms 8036 KB Output is correct
53 Correct 113 ms 8028 KB Output is correct
54 Correct 121 ms 8028 KB Output is correct
55 Correct 113 ms 8040 KB Output is correct
56 Correct 17 ms 7516 KB Output is correct
57 Correct 4 ms 7768 KB Output is correct
58 Correct 4 ms 7772 KB Output is correct

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7516 KB Output is correct
2 Correct 4 ms 7536 KB Output is correct
3 Correct 17 ms 7516 KB Output is correct
4 Execution timed out 5037 ms 25976 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7516 KB Output is correct
2 Correct 32 ms 20372 KB Output is correct
3 Correct 44 ms 21836 KB Output is correct
4 Correct 42 ms 23396 KB Output is correct
5 Correct 61 ms 31944 KB Output is correct
6 Correct 60 ms 31680 KB Output is correct
7 Correct 61 ms 31188 KB Output is correct
8 Correct 63 ms 30800 KB Output is correct
9 Correct 66 ms 30824 KB Output is correct
10 Correct 66 ms 30800 KB Output is correct
11 Correct 77 ms 30816 KB Output is correct
12 Correct 64 ms 30964 KB Output is correct
13 Correct 65 ms 31060 KB Output is correct
14 Correct 64 ms 31404 KB Output is correct
15 Correct 61 ms 32340 KB Output is correct
16 Correct 67 ms 31696 KB Output is correct
17 Correct 63 ms 31696 KB Output is correct
18 Correct 61 ms 31692 KB Output is correct
19 Correct 54 ms 31696 KB Output is correct
20 Correct 58 ms 31304 KB Output is correct
21 Correct 58 ms 30804 KB Output is correct
22 Correct 62 ms 30720 KB Output is correct
23 Correct 66 ms 30608 KB Output is correct
24 Correct 59 ms 30548 KB Output is correct
25 Correct 66 ms 30404 KB Output is correct
26 Correct 67 ms 30544 KB Output is correct
27 Correct 80 ms 30656 KB Output is correct
28 Correct 67 ms 30368 KB Output is correct
29 Correct 74 ms 30464 KB Output is correct
30 Correct 71 ms 30548 KB Output is correct
31 Correct 73 ms 30544 KB Output is correct
32 Correct 84 ms 30804 KB Output is correct
33 Correct 73 ms 31060 KB Output is correct
34 Correct 60 ms 31828 KB Output is correct

Subtask #5
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7768 KB Output is correct
2 Correct 4 ms 7516 KB Output is correct
3 Correct 17 ms 7600 KB Output is correct
4 Execution timed out 5096 ms 23136 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #6
0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7512 KB Output is correct
2 Correct 3 ms 7516 KB Output is correct
3 Correct 3 ms 7536 KB Output is correct
4 Correct 4 ms 7516 KB Output is correct
5 Correct 4 ms 7516 KB Output is correct
6 Correct 5 ms 7580 KB Output is correct
7 Correct 4 ms 7512 KB Output is correct
8 Correct 4 ms 7516 KB Output is correct
9 Correct 5 ms 7512 KB Output is correct
10 Correct 5 ms 7768 KB Output is correct
11 Correct 5 ms 7516 KB Output is correct
12 Correct 12 ms 7516 KB Output is correct
13 Correct 9 ms 7516 KB Output is correct
14 Correct 9 ms 7624 KB Output is correct
15 Correct 5 ms 7516 KB Output is correct
16 Correct 5 ms 7516 KB Output is correct
17 Correct 5 ms 7628 KB Output is correct
18 Correct 5 ms 7516 KB Output is correct
19 Correct 5 ms 7512 KB Output is correct
20 Correct 5 ms 7512 KB Output is correct
21 Correct 5 ms 7516 KB Output is correct
22 Correct 5 ms 7480 KB Output is correct
23 Correct 5 ms 7516 KB Output is correct
24 Correct 5 ms 7516 KB Output is correct
25 Correct 5 ms 7516 KB Output is correct
26 Correct 5 ms 7516 KB Output is correct
27 Correct 3 ms 7516 KB Output is correct
28 Correct 3 ms 7516 KB Output is correct
29 Correct 3 ms 7516 KB Output is correct
30 Correct 63 ms 7924 KB Output is correct
31 Correct 91 ms 7772 KB Output is correct
32 Correct 126 ms 8024 KB Output is correct
33 Correct 125 ms 8052 KB Output is correct
34 Correct 123 ms 8028 KB Output is correct
35 Correct 342 ms 8024 KB Output is correct
36 Correct 330 ms 8024 KB Output is correct
37 Correct 341 ms 8024 KB Output is correct
38 Correct 91 ms 8120 KB Output is correct
39 Correct 90 ms 8028 KB Output is correct
40 Correct 90 ms 8112 KB Output is correct
41 Correct 260 ms 8024 KB Output is correct
42 Correct 265 ms 8028 KB Output is correct
43 Correct 266 ms 8028 KB Output is correct
44 Correct 91 ms 8056 KB Output is correct
45 Correct 95 ms 8028 KB Output is correct
46 Correct 94 ms 8028 KB Output is correct
47 Correct 271 ms 8028 KB Output is correct
48 Correct 264 ms 8028 KB Output is correct
49 Correct 262 ms 8028 KB Output is correct
50 Correct 120 ms 8024 KB Output is correct
51 Correct 116 ms 8028 KB Output is correct
52 Correct 115 ms 8036 KB Output is correct
53 Correct 113 ms 8028 KB Output is correct
54 Correct 121 ms 8028 KB Output is correct
55 Correct 113 ms 8040 KB Output is correct
56 Correct 17 ms 7516 KB Output is correct
57 Correct 4 ms 7768 KB Output is correct
58 Correct 4 ms 7772 KB Output is correct
59 Correct 3 ms 7516 KB Output is correct
60 Correct 4 ms 7536 KB Output is correct
61 Correct 17 ms 7516 KB Output is correct
62 Execution timed out 5037 ms 25976 KB Time limit exceeded
63 Halted 0 ms 0 KB -