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답안 #895947

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
895947 2023-12-31T07:44:12 Z Tuanlinh123 Tourism (JOI23_tourism) C++17
100 / 100
 410 ms 30804 KB 
#include<bits/stdc++.h>
#define ll long long
#define pll pair<ll, ll>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define ld long double
using namespace std;

const ll maxn=100005;
vector <ll> A[maxn];
vector <pll> L[maxn];
ll n, m, q, St[maxn*4], bit[maxn], c[maxn], ans[maxn];
ll Time, tin[maxn], h[maxn], pa[maxn], dep[maxn], child[maxn], big[maxn];

void update(ll i, ll val)
{
    for (; i<=m; i+=i&(-i))
        bit[i]+=val;
}

ll query(ll l, ll r)
{
    ll ans=0; l--;
    for (; r; r-=r&(-r))
        ans+=bit[r];
    for (; l; l-=l&(-l))
        ans-=bit[l];
    return ans;
}

void update(ll i, ll Start, ll End, ll l, ll r, ll val)
{
    if (Start>r || End<l)
        return;
    if (Start>=l && End<=r && St[i]!=-1)
    {
        if (St[i]) update(St[i], -(End-Start+1));
        update(val, End-Start+1);
        St[i]=val;
        return;
    }
    if (St[i]!=-1) St[i*2]=St[i*2+1]=St[i];
    ll mid=(Start+End)/2;
    if (mid>=l) update(i*2, Start, mid, l, r, val);
    if (mid+1<=r) update(i*2+1, mid+1, End, l, r, val);
    if (St[i*2]==St[i*2+1]) St[i]=St[i*2];
    else St[i]=-1;
}

void dfs(ll u)
{
    child[u]=1;
    for (ll v:A[u])
        if (v!=pa[u])
        {
            dep[v]=dep[u]+1, pa[v]=u;
            dfs(v), child[u]+=child[v];
            if (child[v]>child[big[u]])
                big[u]=v;
        }
}

void dfs2(ll u)
{
    tin[u]=++Time;
    if (u==big[pa[u]])
        h[u]=h[pa[u]];
    else h[u]=u;
    if (big[u]) dfs2(big[u]);
    for (ll v:A[u])
        if (v!=pa[u] && v!=big[u])
            dfs2(v);
}

void update(ll u, ll v, ll val)
{
    for (; h[u]!=h[v]; u=pa[h[u]])
    {
        if (dep[h[u]]<dep[h[v]]) swap(u, v);
        update(1, 1, n, tin[h[u]], tin[u], val);
    }
    if (dep[u]<dep[v]) swap(u, v);
    update(1, 1, n, tin[v], tin[u], val);
}

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    cin >> n >> m >> q;
    for (ll i=1; i<n; i++)
    {
        ll u, v; cin >> u >> v;
        A[u].pb(v); A[v].pb(u);
    }
    dfs(1); dfs2(1);
    for (ll i=1; i<=m; i++)
        cin >> c[i];
    for (ll i=1; i<=q; i++)
    {
        ll l, r; cin >> l >> r;
        L[r].pb({l, i});
    }
    for (ll i=1; i<=m; i++)
    {
        if (i>1) update(c[i-1], c[i], i-1);
        update(c[i], c[i], i);
        for (auto &[l, idx]:L[i])
            ans[idx]=query(l, m);
    }
    for (ll i=1; i<=q; i++)
        cout << ans[i] << "\n";
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 8796 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 2 ms 8796 KB Output is correct
4 Correct 2 ms 9052 KB Output is correct
5 Correct 2 ms 9052 KB Output is correct
6 Correct 2 ms 9052 KB Output is correct
7 Correct 3 ms 9052 KB Output is correct
8 Correct 2 ms 9044 KB Output is correct
9 Correct 2 ms 9048 KB Output is correct
10 Correct 2 ms 9052 KB Output is correct
11 Correct 2 ms 8860 KB Output is correct
12 Correct 2 ms 9052 KB Output is correct
13 Correct 2 ms 9048 KB Output is correct
14 Correct 2 ms 9052 KB Output is correct
15 Correct 2 ms 9052 KB Output is correct
16 Correct 2 ms 9068 KB Output is correct
17 Correct 2 ms 9048 KB Output is correct
18 Correct 3 ms 9048 KB Output is correct
19 Correct 2 ms 9052 KB Output is correct
20 Correct 2 ms 9052 KB Output is correct
21 Correct 2 ms 9052 KB Output is correct
22 Correct 2 ms 9052 KB Output is correct
23 Correct 2 ms 9052 KB Output is correct
24 Correct 2 ms 8880 KB Output is correct
25 Correct 2 ms 9048 KB Output is correct
26 Correct 2 ms 9052 KB Output is correct
27 Correct 2 ms 8796 KB Output is correct
28 Correct 2 ms 9052 KB Output is correct
29 Correct 2 ms 9052 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 8796 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 2 ms 8796 KB Output is correct
4 Correct 2 ms 9052 KB Output is correct
5 Correct 2 ms 9052 KB Output is correct
6 Correct 2 ms 9052 KB Output is correct
7 Correct 3 ms 9052 KB Output is correct
8 Correct 2 ms 9044 KB Output is correct
9 Correct 2 ms 9048 KB Output is correct
10 Correct 2 ms 9052 KB Output is correct
11 Correct 2 ms 8860 KB Output is correct
12 Correct 2 ms 9052 KB Output is correct
13 Correct 2 ms 9048 KB Output is correct
14 Correct 2 ms 9052 KB Output is correct
15 Correct 2 ms 9052 KB Output is correct
16 Correct 2 ms 9068 KB Output is correct
17 Correct 2 ms 9048 KB Output is correct
18 Correct 3 ms 9048 KB Output is correct
19 Correct 2 ms 9052 KB Output is correct
20 Correct 2 ms 9052 KB Output is correct
21 Correct 2 ms 9052 KB Output is correct
22 Correct 2 ms 9052 KB Output is correct
23 Correct 2 ms 9052 KB Output is correct
24 Correct 2 ms 8880 KB Output is correct
25 Correct 2 ms 9048 KB Output is correct
26 Correct 2 ms 9052 KB Output is correct
27 Correct 2 ms 8796 KB Output is correct
28 Correct 2 ms 9052 KB Output is correct
29 Correct 2 ms 9052 KB Output is correct
30 Correct 4 ms 9052 KB Output is correct
31 Correct 4 ms 9304 KB Output is correct
32 Correct 7 ms 9304 KB Output is correct
33 Correct 5 ms 9308 KB Output is correct
34 Correct 5 ms 9308 KB Output is correct
35 Correct 5 ms 9308 KB Output is correct
36 Correct 5 ms 9308 KB Output is correct
37 Correct 4 ms 9308 KB Output is correct
38 Correct 5 ms 9320 KB Output is correct
39 Correct 4 ms 9304 KB Output is correct
40 Correct 4 ms 9308 KB Output is correct
41 Correct 4 ms 9308 KB Output is correct
42 Correct 4 ms 9508 KB Output is correct
43 Correct 5 ms 9308 KB Output is correct
44 Correct 5 ms 9304 KB Output is correct
45 Correct 7 ms 9308 KB Output is correct
46 Correct 5 ms 9304 KB Output is correct
47 Correct 5 ms 9308 KB Output is correct
48 Correct 6 ms 9308 KB Output is correct
49 Correct 5 ms 9308 KB Output is correct
50 Correct 3 ms 9052 KB Output is correct
51 Correct 4 ms 9052 KB Output is correct
52 Correct 4 ms 9308 KB Output is correct
53 Correct 4 ms 9308 KB Output is correct
54 Correct 4 ms 9204 KB Output is correct
55 Correct 4 ms 9308 KB Output is correct
56 Correct 3 ms 9052 KB Output is correct
57 Correct 2 ms 9048 KB Output is correct
58 Correct 5 ms 9220 KB Output is correct

Subtask #3
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 8796 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 2 ms 9052 KB Output is correct
4 Correct 154 ms 20988 KB Output is correct
5 Correct 123 ms 25460 KB Output is correct
6 Correct 164 ms 26976 KB Output is correct
7 Correct 201 ms 30752 KB Output is correct
8 Correct 196 ms 30804 KB Output is correct
9 Correct 194 ms 30544 KB Output is correct
10 Correct 205 ms 30656 KB Output is correct
11 Correct 195 ms 30616 KB Output is correct
12 Correct 132 ms 30284 KB Output is correct
13 Correct 120 ms 30332 KB Output is correct
14 Correct 121 ms 30584 KB Output is correct
15 Correct 43 ms 25188 KB Output is correct
16 Correct 198 ms 30288 KB Output is correct
17 Correct 35 ms 15344 KB Output is correct

Subtask #4
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 8796 KB Output is correct
2 Correct 136 ms 14420 KB Output is correct
3 Correct 192 ms 15184 KB Output is correct
4 Correct 155 ms 15656 KB Output is correct
5 Correct 280 ms 18256 KB Output is correct
6 Correct 256 ms 18340 KB Output is correct
7 Correct 251 ms 18160 KB Output is correct
8 Correct 241 ms 18256 KB Output is correct
9 Correct 268 ms 18116 KB Output is correct
10 Correct 264 ms 18044 KB Output is correct
11 Correct 253 ms 18532 KB Output is correct
12 Correct 248 ms 18284 KB Output is correct
13 Correct 245 ms 18772 KB Output is correct
14 Correct 261 ms 19748 KB Output is correct
15 Correct 279 ms 22356 KB Output is correct
16 Correct 245 ms 20472 KB Output is correct
17 Correct 247 ms 20420 KB Output is correct
18 Correct 258 ms 20304 KB Output is correct
19 Correct 321 ms 19512 KB Output is correct
20 Correct 318 ms 19500 KB Output is correct
21 Correct 338 ms 19308 KB Output is correct
22 Correct 323 ms 19384 KB Output is correct
23 Correct 321 ms 19540 KB Output is correct
24 Correct 324 ms 19368 KB Output is correct
25 Correct 331 ms 19520 KB Output is correct
26 Correct 324 ms 19428 KB Output is correct
27 Correct 325 ms 19536 KB Output is correct
28 Correct 326 ms 19432 KB Output is correct
29 Correct 323 ms 19536 KB Output is correct
30 Correct 329 ms 19804 KB Output is correct
31 Correct 325 ms 19936 KB Output is correct
32 Correct 327 ms 20564 KB Output is correct
33 Correct 339 ms 22156 KB Output is correct
34 Correct 348 ms 24804 KB Output is correct

Subtask #5
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 8792 KB Output is correct
2 Correct 2 ms 9052 KB Output is correct
3 Correct 3 ms 9140 KB Output is correct
4 Correct 297 ms 18768 KB Output is correct
5 Correct 325 ms 18772 KB Output is correct
6 Correct 359 ms 21180 KB Output is correct
7 Correct 372 ms 25280 KB Output is correct
8 Correct 410 ms 25236 KB Output is correct
9 Correct 373 ms 25172 KB Output is correct
10 Correct 391 ms 25440 KB Output is correct
11 Correct 377 ms 25124 KB Output is correct
12 Correct 378 ms 25408 KB Output is correct
13 Correct 367 ms 25168 KB Output is correct
14 Correct 40 ms 15640 KB Output is correct

Subtask #6
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 8796 KB Output is correct
2 Correct 2 ms 8796 KB Output is correct
3 Correct 2 ms 8796 KB Output is correct
4 Correct 2 ms 9052 KB Output is correct
5 Correct 2 ms 9052 KB Output is correct
6 Correct 2 ms 9052 KB Output is correct
7 Correct 3 ms 9052 KB Output is correct
8 Correct 2 ms 9044 KB Output is correct
9 Correct 2 ms 9048 KB Output is correct
10 Correct 2 ms 9052 KB Output is correct
11 Correct 2 ms 8860 KB Output is correct
12 Correct 2 ms 9052 KB Output is correct
13 Correct 2 ms 9048 KB Output is correct
14 Correct 2 ms 9052 KB Output is correct
15 Correct 2 ms 9052 KB Output is correct
16 Correct 2 ms 9068 KB Output is correct
17 Correct 2 ms 9048 KB Output is correct
18 Correct 3 ms 9048 KB Output is correct
19 Correct 2 ms 9052 KB Output is correct
20 Correct 2 ms 9052 KB Output is correct
21 Correct 2 ms 9052 KB Output is correct
22 Correct 2 ms 9052 KB Output is correct
23 Correct 2 ms 9052 KB Output is correct
24 Correct 2 ms 8880 KB Output is correct
25 Correct 2 ms 9048 KB Output is correct
26 Correct 2 ms 9052 KB Output is correct
27 Correct 2 ms 8796 KB Output is correct
28 Correct 2 ms 9052 KB Output is correct
29 Correct 2 ms 9052 KB Output is correct
30 Correct 4 ms 9052 KB Output is correct
31 Correct 4 ms 9304 KB Output is correct
32 Correct 7 ms 9304 KB Output is correct
33 Correct 5 ms 9308 KB Output is correct
34 Correct 5 ms 9308 KB Output is correct
35 Correct 5 ms 9308 KB Output is correct
36 Correct 5 ms 9308 KB Output is correct
37 Correct 4 ms 9308 KB Output is correct
38 Correct 5 ms 9320 KB Output is correct
39 Correct 4 ms 9304 KB Output is correct
40 Correct 4 ms 9308 KB Output is correct
41 Correct 4 ms 9308 KB Output is correct
42 Correct 4 ms 9508 KB Output is correct
43 Correct 5 ms 9308 KB Output is correct
44 Correct 5 ms 9304 KB Output is correct
45 Correct 7 ms 9308 KB Output is correct
46 Correct 5 ms 9304 KB Output is correct
47 Correct 5 ms 9308 KB Output is correct
48 Correct 6 ms 9308 KB Output is correct
49 Correct 5 ms 9308 KB Output is correct
50 Correct 3 ms 9052 KB Output is correct
51 Correct 4 ms 9052 KB Output is correct
52 Correct 4 ms 9308 KB Output is correct
53 Correct 4 ms 9308 KB Output is correct
54 Correct 4 ms 9204 KB Output is correct
55 Correct 4 ms 9308 KB Output is correct
56 Correct 3 ms 9052 KB Output is correct
57 Correct 2 ms 9048 KB Output is correct
58 Correct 5 ms 9220 KB Output is correct
59 Correct 2 ms 8796 KB Output is correct
60 Correct 2 ms 8796 KB Output is correct
61 Correct 2 ms 9052 KB Output is correct
62 Correct 154 ms 20988 KB Output is correct
63 Correct 123 ms 25460 KB Output is correct
64 Correct 164 ms 26976 KB Output is correct
65 Correct 201 ms 30752 KB Output is correct
66 Correct 196 ms 30804 KB Output is correct
67 Correct 194 ms 30544 KB Output is correct
68 Correct 205 ms 30656 KB Output is correct
69 Correct 195 ms 30616 KB Output is correct
70 Correct 132 ms 30284 KB Output is correct
71 Correct 120 ms 30332 KB Output is correct
72 Correct 121 ms 30584 KB Output is correct
73 Correct 43 ms 25188 KB Output is correct
74 Correct 198 ms 30288 KB Output is correct
75 Correct 35 ms 15344 KB Output is correct
76 Correct 2 ms 8796 KB Output is correct
77 Correct 136 ms 14420 KB Output is correct
78 Correct 192 ms 15184 KB Output is correct
79 Correct 155 ms 15656 KB Output is correct
80 Correct 280 ms 18256 KB Output is correct
81 Correct 256 ms 18340 KB Output is correct
82 Correct 251 ms 18160 KB Output is correct
83 Correct 241 ms 18256 KB Output is correct
84 Correct 268 ms 18116 KB Output is correct
85 Correct 264 ms 18044 KB Output is correct
86 Correct 253 ms 18532 KB Output is correct
87 Correct 248 ms 18284 KB Output is correct
88 Correct 245 ms 18772 KB Output is correct
89 Correct 261 ms 19748 KB Output is correct
90 Correct 279 ms 22356 KB Output is correct
91 Correct 245 ms 20472 KB Output is correct
92 Correct 247 ms 20420 KB Output is correct
93 Correct 258 ms 20304 KB Output is correct
94 Correct 321 ms 19512 KB Output is correct
95 Correct 318 ms 19500 KB Output is correct
96 Correct 338 ms 19308 KB Output is correct
97 Correct 323 ms 19384 KB Output is correct
98 Correct 321 ms 19540 KB Output is correct
99 Correct 324 ms 19368 KB Output is correct
100 Correct 331 ms 19520 KB Output is correct
101 Correct 324 ms 19428 KB Output is correct
102 Correct 325 ms 19536 KB Output is correct
103 Correct 326 ms 19432 KB Output is correct
104 Correct 323 ms 19536 KB Output is correct
105 Correct 329 ms 19804 KB Output is correct
106 Correct 325 ms 19936 KB Output is correct
107 Correct 327 ms 20564 KB Output is correct
108 Correct 339 ms 22156 KB Output is correct
109 Correct 348 ms 24804 KB Output is correct
110 Correct 2 ms 8792 KB Output is correct
111 Correct 2 ms 9052 KB Output is correct
112 Correct 3 ms 9140 KB Output is correct
113 Correct 297 ms 18768 KB Output is correct
114 Correct 325 ms 18772 KB Output is correct
115 Correct 359 ms 21180 KB Output is correct
116 Correct 372 ms 25280 KB Output is correct
117 Correct 410 ms 25236 KB Output is correct
118 Correct 373 ms 25172 KB Output is correct
119 Correct 391 ms 25440 KB Output is correct
120 Correct 377 ms 25124 KB Output is correct
121 Correct 378 ms 25408 KB Output is correct
122 Correct 367 ms 25168 KB Output is correct
123 Correct 40 ms 15640 KB Output is correct
124 Correct 241 ms 24620 KB Output is correct
125 Correct 185 ms 21844 KB Output is correct
126 Correct 293 ms 25028 KB Output is correct
127 Correct 329 ms 25052 KB Output is correct
128 Correct 300 ms 25212 KB Output is correct
129 Correct 308 ms 24912 KB Output is correct
130 Correct 294 ms 24920 KB Output is correct
131 Correct 207 ms 29748 KB Output is correct
132 Correct 209 ms 30544 KB Output is correct
133 Correct 223 ms 27472 KB Output is correct
134 Correct 365 ms 24660 KB Output is correct
135 Correct 367 ms 24660 KB Output is correct
136 Correct 399 ms 24668 KB Output is correct
137 Correct 129 ms 25080 KB Output is correct
138 Correct 136 ms 25024 KB Output is correct
139 Correct 130 ms 25032 KB Output is correct
140 Correct 139 ms 25288 KB Output is correct
141 Correct 148 ms 25280 KB Output is correct
142 Correct 130 ms 25284 KB Output is correct
143 Correct 47 ms 19428 KB Output is correct
144 Correct 279 ms 24656 KB Output is correct