oj.uz

Submission #793699

# Submission time Handle Problem Language Result Execution time Memory
793699 2023-07-26T05:38:36 Z vjudge1 Tourism (JOI23_tourism) C++17
10 / 100
 100 ms 15304 KB 

// Author : حسن

#include <bits/stdc++.h>



using namespace std;

#define TL ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
#define rall(s) s.rbegin(),s.rend()
#define all(s) s.begin(),s.end()
#define pb push_back
#define fi first
#define se second
#define ll long long
#define ld long double
#define YES cout<<"YES\n"
#define Yes cout<<"Yes\n"
#define yes cout<<"yes\n"
#define NO cout<<"NO\n"
#define No cout<<"No\n"
#define no cout<<"no\n"


const int N = 3e5 + 9 , mod = 1e9 + 7;
ll c[N] = {} , d[N] = {} , a[N] = {}, b[N] = {}  , us[N] , us1[N] , st[N][20][2] , dp[N] = {};

vector<int>v[N];

void dfs(int n,int p = 0){
    d[n] = d[p] + 1;
    for(auto to : v[n])
        if(to != p)
            dfs(to , n);
}

ll ans;
void dfs1(int n,int p = 0){
    for(auto to : v[n])
        if(to != p)
            dfs1(to , n);
        ll s = 0;
     for(auto to  : v[n])
            if(b[to] != 0)
                if(to != p)
                s++, b[n] = b[to];
    if(s != 0){
        if(s == 1 && us[n] == 0){

        }else {
        ans++;
        for(auto to  : v[n])
            if(to != p && b[to] != 0){
            ans += d[b[to]] - d[n] - 1;
            }
        b[n] = n;
        }
    }else if(us[n] == 1){
        ans++;
        b[n] = n;
    }
}



pair<ll,ll> get(int x , int y){
    ll i = dp[y - x + 1];
    ll minimum = min(st[i][x][1], st[i][y - (1 << i) + 1][1]);
    ll maximum = max(st[i][x][0], st[i][y - (1 << i) + 1][0]);
    //cout<<i<<" "<<minimum<<" "<<maximum<<" ";
    return {maximum , minimum};
}

void get1(){
    ll x ,y , i;
x = 0;
    y = 1;
    dp[0] = 0;
    for(i = 1; i <= 2e5; i++){
        if(2 * y <= i)
            x++, y *= 2;
        dp[i] = x;
    }
    }

void solve(){
    ll q , i , j , m , n , z , s  = 0, f, l , r , k , x , y , mn  = 1e18 , mx = 0;
    cin>>n>>m>>q;
    for(i = 1; i < n; i++){
        cin>>l>>r;
        v[l].pb(r);
        v[r].pb(l);
        if(!(l == i && r == i + 1))
            s++;
    }
    for(i = 1; i <= m; i++)
        cin>>a[i];
    dfs(1);
    get1();
    for(i = 1; i <= m; i++)
        st[0][i][0]  = st[0][i][1] = d[a[i]];
    for (int i = 1; i < 18; i++)
    for (int j = 1; j + (1 << i) <= (m + 2); j++){
        st[i][j][0] = max(st[i - 1][j][0], st[i - 1][j + (1 << (i - 1))][0]);
        st[i][j][1] = min(st[i - 1][j][1], st[i - 1][j + (1 << (i - 1))][1]);
    }
    if(s && n <= 2000 && m <= 2000 && q <= 2000){
    while(q--){
        cin>>l>>r;
        for(i = 1; i <= n; i++){
            us[i] = b[i] = c[i] = 0;
        }
        for(i = l; i <= r; i++)
            us[a[i]] = 1;
        ans = 0;
        dfs1(1);
        cout<<ans<<"\n";
    }
    }else {
    while(q--){
        cin>>l>>r;
        cout<<get(l , r).fi - get(l , r).se + 1<<"\n";
    }
    }
}

int main(){

     TL;
     /*
     #ifndef ONLINE_JUDGE
     freopen("input.txt", "r", stdin);
     freopen("output.txt", "w", stdout);
     #endif
     */
int t = 1;
//cin>>t;

while(t--)
     {
     solve();
     }

}
// Author : حسن

Compilation message

tourism.cpp: In function 'void solve()':
tourism.cpp:89:16: warning: unused variable 'j' [-Wunused-variable]
   89 |     ll q , i , j , m , n , z , s  = 0, f, l , r , k , x , y , mn  = 1e18 , mx = 0;
      |                ^
tourism.cpp:89:28: warning: unused variable 'z' [-Wunused-variable]
   89 |     ll q , i , j , m , n , z , s  = 0, f, l , r , k , x , y , mn  = 1e18 , mx = 0;
      |                            ^
tourism.cpp:89:40: warning: unused variable 'f' [-Wunused-variable]
   89 |     ll q , i , j , m , n , z , s  = 0, f, l , r , k , x , y , mn  = 1e18 , mx = 0;
      |                                        ^
tourism.cpp:89:51: warning: unused variable 'k' [-Wunused-variable]
   89 |     ll q , i , j , m , n , z , s  = 0, f, l , r , k , x , y , mn  = 1e18 , mx = 0;
      |                                                   ^
tourism.cpp:89:55: warning: unused variable 'x' [-Wunused-variable]
   89 |     ll q , i , j , m , n , z , s  = 0, f, l , r , k , x , y , mn  = 1e18 , mx = 0;
      |                                                       ^
tourism.cpp:89:59: warning: unused variable 'y' [-Wunused-variable]
   89 |     ll q , i , j , m , n , z , s  = 0, f, l , r , k , x , y , mn  = 1e18 , mx = 0;
      |                                                           ^
tourism.cpp:89:63: warning: unused variable 'mn' [-Wunused-variable]
   89 |     ll q , i , j , m , n , z , s  = 0, f, l , r , k , x , y , mn  = 1e18 , mx = 0;
      |                                                               ^~
tourism.cpp:89:76: warning: unused variable 'mx' [-Wunused-variable]
   89 |     ll q , i , j , m , n , z , s  = 0, f, l , r , k , x , y , mn  = 1e18 , mx = 0;
      |                                                                            ^~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8916 KB Output is correct
2 Correct 4 ms 8916 KB Output is correct
3 Correct 4 ms 8916 KB Output is correct
4 Correct 4 ms 8916 KB Output is correct
5 Correct 5 ms 8916 KB Output is correct
6 Correct 4 ms 8916 KB Output is correct
7 Correct 4 ms 8916 KB Output is correct
8 Correct 5 ms 8916 KB Output is correct
9 Correct 5 ms 8916 KB Output is correct
10 Correct 5 ms 8916 KB Output is correct
11 Correct 6 ms 8924 KB Output is correct
12 Correct 6 ms 8916 KB Output is correct
13 Correct 5 ms 8988 KB Output is correct
14 Correct 5 ms 8916 KB Output is correct
15 Correct 5 ms 9008 KB Output is correct
16 Correct 5 ms 9000 KB Output is correct
17 Correct 5 ms 8916 KB Output is correct
18 Correct 5 ms 8916 KB Output is correct
19 Correct 5 ms 8916 KB Output is correct
20 Correct 5 ms 8928 KB Output is correct
21 Correct 7 ms 8916 KB Output is correct
22 Correct 5 ms 8916 KB Output is correct
23 Correct 5 ms 8916 KB Output is correct
24 Correct 5 ms 8916 KB Output is correct
25 Correct 5 ms 8980 KB Output is correct
26 Correct 5 ms 8916 KB Output is correct
27 Correct 4 ms 8916 KB Output is correct
28 Correct 5 ms 8916 KB Output is correct
29 Correct 5 ms 8916 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8916 KB Output is correct
2 Correct 4 ms 8916 KB Output is correct
3 Correct 4 ms 8916 KB Output is correct
4 Correct 4 ms 8916 KB Output is correct
5 Correct 5 ms 8916 KB Output is correct
6 Correct 4 ms 8916 KB Output is correct
7 Correct 4 ms 8916 KB Output is correct
8 Correct 5 ms 8916 KB Output is correct
9 Correct 5 ms 8916 KB Output is correct
10 Correct 5 ms 8916 KB Output is correct
11 Correct 6 ms 8924 KB Output is correct
12 Correct 6 ms 8916 KB Output is correct
13 Correct 5 ms 8988 KB Output is correct
14 Correct 5 ms 8916 KB Output is correct
15 Correct 5 ms 9008 KB Output is correct
16 Correct 5 ms 9000 KB Output is correct
17 Correct 5 ms 8916 KB Output is correct
18 Correct 5 ms 8916 KB Output is correct
19 Correct 5 ms 8916 KB Output is correct
20 Correct 5 ms 8928 KB Output is correct
21 Correct 7 ms 8916 KB Output is correct
22 Correct 5 ms 8916 KB Output is correct
23 Correct 5 ms 8916 KB Output is correct
24 Correct 5 ms 8916 KB Output is correct
25 Correct 5 ms 8980 KB Output is correct
26 Correct 5 ms 8916 KB Output is correct
27 Correct 4 ms 8916 KB Output is correct
28 Correct 5 ms 8916 KB Output is correct
29 Correct 5 ms 8916 KB Output is correct
30 Correct 43 ms 9120 KB Output is correct
31 Correct 54 ms 9112 KB Output is correct
32 Correct 87 ms 9156 KB Output is correct
33 Correct 100 ms 9144 KB Output is correct
34 Correct 85 ms 9044 KB Output is correct
35 Correct 55 ms 9156 KB Output is correct
36 Correct 54 ms 9044 KB Output is correct
37 Correct 56 ms 9160 KB Output is correct
38 Correct 64 ms 9244 KB Output is correct
39 Correct 62 ms 9172 KB Output is correct
40 Correct 65 ms 9252 KB Output is correct
41 Correct 67 ms 9268 KB Output is correct
42 Correct 70 ms 9252 KB Output is correct
43 Correct 65 ms 9176 KB Output is correct
44 Correct 63 ms 9188 KB Output is correct
45 Correct 64 ms 9180 KB Output is correct
46 Correct 65 ms 9204 KB Output is correct
47 Correct 64 ms 9172 KB Output is correct
48 Correct 77 ms 9176 KB Output is correct
49 Correct 62 ms 9196 KB Output is correct
50 Correct 60 ms 9164 KB Output is correct
51 Correct 67 ms 9168 KB Output is correct
52 Correct 62 ms 9168 KB Output is correct
53 Correct 62 ms 9164 KB Output is correct
54 Correct 62 ms 9172 KB Output is correct
55 Correct 62 ms 9044 KB Output is correct
56 Correct 5 ms 8916 KB Output is correct
57 Correct 46 ms 9100 KB Output is correct
58 Correct 44 ms 9160 KB Output is correct

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8916 KB Output is correct
2 Correct 5 ms 8848 KB Output is correct
3 Correct 4 ms 8968 KB Output is correct
4 Incorrect 41 ms 15304 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8916 KB Output is correct
2 Incorrect 22 ms 12332 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8916 KB Output is correct
2 Correct 4 ms 8916 KB Output is correct
3 Correct 4 ms 8916 KB Output is correct
4 Incorrect 41 ms 13344 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #6
0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 8916 KB Output is correct
2 Correct 4 ms 8916 KB Output is correct
3 Correct 4 ms 8916 KB Output is correct
4 Correct 4 ms 8916 KB Output is correct
5 Correct 5 ms 8916 KB Output is correct
6 Correct 4 ms 8916 KB Output is correct
7 Correct 4 ms 8916 KB Output is correct
8 Correct 5 ms 8916 KB Output is correct
9 Correct 5 ms 8916 KB Output is correct
10 Correct 5 ms 8916 KB Output is correct
11 Correct 6 ms 8924 KB Output is correct
12 Correct 6 ms 8916 KB Output is correct
13 Correct 5 ms 8988 KB Output is correct
14 Correct 5 ms 8916 KB Output is correct
15 Correct 5 ms 9008 KB Output is correct
16 Correct 5 ms 9000 KB Output is correct
17 Correct 5 ms 8916 KB Output is correct
18 Correct 5 ms 8916 KB Output is correct
19 Correct 5 ms 8916 KB Output is correct
20 Correct 5 ms 8928 KB Output is correct
21 Correct 7 ms 8916 KB Output is correct
22 Correct 5 ms 8916 KB Output is correct
23 Correct 5 ms 8916 KB Output is correct
24 Correct 5 ms 8916 KB Output is correct
25 Correct 5 ms 8980 KB Output is correct
26 Correct 5 ms 8916 KB Output is correct
27 Correct 4 ms 8916 KB Output is correct
28 Correct 5 ms 8916 KB Output is correct
29 Correct 5 ms 8916 KB Output is correct
30 Correct 43 ms 9120 KB Output is correct
31 Correct 54 ms 9112 KB Output is correct
32 Correct 87 ms 9156 KB Output is correct
33 Correct 100 ms 9144 KB Output is correct
34 Correct 85 ms 9044 KB Output is correct
35 Correct 55 ms 9156 KB Output is correct
36 Correct 54 ms 9044 KB Output is correct
37 Correct 56 ms 9160 KB Output is correct
38 Correct 64 ms 9244 KB Output is correct
39 Correct 62 ms 9172 KB Output is correct
40 Correct 65 ms 9252 KB Output is correct
41 Correct 67 ms 9268 KB Output is correct
42 Correct 70 ms 9252 KB Output is correct
43 Correct 65 ms 9176 KB Output is correct
44 Correct 63 ms 9188 KB Output is correct
45 Correct 64 ms 9180 KB Output is correct
46 Correct 65 ms 9204 KB Output is correct
47 Correct 64 ms 9172 KB Output is correct
48 Correct 77 ms 9176 KB Output is correct
49 Correct 62 ms 9196 KB Output is correct
50 Correct 60 ms 9164 KB Output is correct
51 Correct 67 ms 9168 KB Output is correct
52 Correct 62 ms 9168 KB Output is correct
53 Correct 62 ms 9164 KB Output is correct
54 Correct 62 ms 9172 KB Output is correct
55 Correct 62 ms 9044 KB Output is correct
56 Correct 5 ms 8916 KB Output is correct
57 Correct 46 ms 9100 KB Output is correct
58 Correct 44 ms 9160 KB Output is correct
59 Correct 4 ms 8916 KB Output is correct
60 Correct 5 ms 8848 KB Output is correct
61 Correct 4 ms 8968 KB Output is correct
62 Incorrect 41 ms 15304 KB Output isn't correct
63 Halted 0 ms 0 KB -