oj.uz

Submission #792742

# Submission time Handle Problem Language Result Execution time Memory
792742 2023-07-25T08:27:18 Z vjudge1 Bitaro's travel (JOI23_travel) C++14
100 / 100
 331 ms 22596 KB 
#include<bits/stdc++.h>
#define ll long long
#define fi first
#define se second
using namespace std ;
const ll N = 2e5 ;
ll n, q, x[N + 2], abu[N + 2] ;
bool flag ;
signed main()
{
    ios_base::sync_with_stdio( 0 ) ;
    cin.tie( 0 ) ;
    cout.tie( 0 ) ;
    cin >> n ;
    x[0] = -1e18 ;
    x[n + 1] = 1e18 ;
    for(ll i = 1 ; i <= n ; i++)
        cin >> x[i] ;
    for(ll i = 1 ; i < n ; i++)
        if(x[i + 1] - x[i] > 100)
            flag = 1 ;
    cin >> q ;
    if(q == 1)
    {
        ll ans = 0, pos ;
        cin >> pos ;
        set<ll> s_neg, s_pos ;
        for(ll i = 1 ; i <= n ; i++)
            s_pos.insert(x[i]), s_neg.insert(-x[i]) ;
        while(s_pos.size())
        {
            ll l = -1e18, r = 1e18 ;
            if(s_pos.lower_bound(pos) != s_pos.end())
                r = *s_pos.lower_bound(pos) ;
            if(s_neg.lower_bound(-pos) != s_neg.end())
                l = -(*s_neg.lower_bound(-pos)) ;
            if(pos - l <= r - pos)
            {
                ans += pos - l ;
                pos = l ;
                s_neg.erase(-l) ;
                s_pos.erase(l) ;
            }
            else
            {
                ans += r - pos ;
                pos = r ;
                s_neg.erase(-r) ;
                s_pos.erase(r) ;
            }
        }
        cout << ans ;
        return 0 ;
    }
//    if(!flag)
//    {
//        for(ll i = 1 ; i <= n ; i++)
//        {
//            ll l = i - 1, r = i + 1, now = i ;
//            while(x[now] - x[l] <= 100ll && x[r] - x[now] <= 100ll)
//                if(x[now] - x[l] <= x[r] - x[now])
//                {
//                    abu[i] += x[now] - x[l] ;
//                    now = l ;
//                    l-- ;
//                }
//                else
//                {
//                    abu[i] += x[r] - x[now] ;
//                    now = r ;
//                    r++ ;
//                }
//            if(l && r <= n)
//            {
//                if(x[now] - x[l] <= 100)
//                    abu[i] += x[now] - x[1] ;
//                else
//                    abu[i] += x[n] - x[now] ;
//            }
//            abu[i] += x[n] - x[1] ;
//        }
//        while(q--)
//        {
//            ll pos, l = 0, r = n + 1 ;
//            cin >> pos ;
//            while(l + 1 < r)
//            {
//                ll mid = (l + r) >> 1 ;
//                if(x[mid] <= pos)l = mid ;
//                else r = mid ;
//            }
//            if(pos - x[l] <= x[r] - pos)
//                cout << abu[l] + pos - x[l] ;
//            else
//                cout << abu[r] + x[r] - pos ;
//            cout << '\n' ;
//        }
//    }
//    else
//    {
        for(ll i = 1 ; i <= n ; i++)
        {
            ll l = i - 1, r = i + 1, now = i ;
            while(l && r <= n)
                if(x[now] - x[l] <= x[r] - x[now])
                {
                    ll l1 = 0, r1 = l ;
                    while(l1 + 1 < r1)
                    {
                        ll mid = (l1 + r1) >> 1 ;
                        if(x[now] - x[mid] <= x[r] - x[now])r1 = mid ;
                        else l1 = mid ;
                    }
                    abu[i] += x[now] - x[r1] ;
                    now = r1 ;
                    l = r1 - 1 ;
                }
                else
                {
                    ll l1 = r, r1 = n + 1 ;
                    while(l1 + 1 < r1)
                    {
                        ll mid = (l1 + r1) >> 1 ;
                        if(x[now] - x[l] > x[mid] - x[now])l1 = mid ;
                        else r1 = mid ;
                    }
                    abu[i] += x[l1] - x[now] ;
                    now = l1 ;
                    r = l1 + 1 ;
                }
            abu[i] += x[n] - x[1] ;
        }
        while(q--)
        {
            ll pos, l = 0, r = n + 1 ;
            cin >> pos ;
            while(l + 1 < r)
            {
                ll mid = (l + r) >> 1 ;
                if(x[mid] <= pos)l = mid ;
                else r = mid ;
            }
            if(pos - x[l] <= x[r] - pos)
                cout << abu[l] + pos - x[l] ;
            else
                cout << abu[r] + x[r] - pos ;
            cout << '\n' ;
        }
//    }
    return 0 ;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 2 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 552 KB Output is correct
6 Correct 1 ms 472 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 324 KB Output is correct
14 Correct 2 ms 468 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 2 ms 468 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 2 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 552 KB Output is correct
6 Correct 1 ms 472 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 324 KB Output is correct
14 Correct 2 ms 468 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 2 ms 468 KB Output is correct
17 Correct 120 ms 22560 KB Output is correct
18 Correct 144 ms 22596 KB Output is correct
19 Correct 147 ms 22584 KB Output is correct
20 Correct 151 ms 22596 KB Output is correct
21 Correct 175 ms 22576 KB Output is correct
22 Correct 153 ms 22484 KB Output is correct
23 Correct 119 ms 22524 KB Output is correct
24 Correct 131 ms 22588 KB Output is correct
25 Correct 149 ms 22596 KB Output is correct
26 Correct 130 ms 22596 KB Output is correct
27 Correct 125 ms 22500 KB Output is correct
28 Correct 177 ms 22552 KB Output is correct
29 Correct 125 ms 22540 KB Output is correct
30 Correct 127 ms 22540 KB Output is correct
31 Correct 134 ms 22544 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 232 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 0 ms 328 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 182 ms 7296 KB Output is correct
8 Correct 190 ms 7320 KB Output is correct
9 Correct 161 ms 7372 KB Output is correct
10 Correct 161 ms 7256 KB Output is correct
11 Correct 151 ms 7356 KB Output is correct
12 Correct 153 ms 7460 KB Output is correct
13 Correct 33 ms 4136 KB Output is correct
14 Correct 22 ms 1468 KB Output is correct
15 Correct 281 ms 7892 KB Output is correct
16 Correct 289 ms 7856 KB Output is correct
17 Correct 331 ms 7924 KB Output is correct
18 Correct 32 ms 4064 KB Output is correct

Subtask #4
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 2 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 552 KB Output is correct
6 Correct 1 ms 472 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 324 KB Output is correct
14 Correct 2 ms 468 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 2 ms 468 KB Output is correct
17 Correct 120 ms 22560 KB Output is correct
18 Correct 144 ms 22596 KB Output is correct
19 Correct 147 ms 22584 KB Output is correct
20 Correct 151 ms 22596 KB Output is correct
21 Correct 175 ms 22576 KB Output is correct
22 Correct 153 ms 22484 KB Output is correct
23 Correct 119 ms 22524 KB Output is correct
24 Correct 131 ms 22588 KB Output is correct
25 Correct 149 ms 22596 KB Output is correct
26 Correct 130 ms 22596 KB Output is correct
27 Correct 125 ms 22500 KB Output is correct
28 Correct 177 ms 22552 KB Output is correct
29 Correct 125 ms 22540 KB Output is correct
30 Correct 127 ms 22540 KB Output is correct
31 Correct 134 ms 22544 KB Output is correct
32 Correct 1 ms 232 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 328 KB Output is correct
35 Correct 1 ms 324 KB Output is correct
36 Correct 0 ms 328 KB Output is correct
37 Correct 1 ms 212 KB Output is correct
38 Correct 182 ms 7296 KB Output is correct
39 Correct 190 ms 7320 KB Output is correct
40 Correct 161 ms 7372 KB Output is correct
41 Correct 161 ms 7256 KB Output is correct
42 Correct 151 ms 7356 KB Output is correct
43 Correct 153 ms 7460 KB Output is correct
44 Correct 33 ms 4136 KB Output is correct
45 Correct 22 ms 1468 KB Output is correct
46 Correct 281 ms 7892 KB Output is correct
47 Correct 289 ms 7856 KB Output is correct
48 Correct 331 ms 7924 KB Output is correct
49 Correct 32 ms 4064 KB Output is correct
50 Correct 182 ms 9392 KB Output is correct
51 Correct 206 ms 9448 KB Output is correct
52 Correct 240 ms 9436 KB Output is correct
53 Correct 266 ms 9472 KB Output is correct
54 Correct 280 ms 9384 KB Output is correct
55 Correct 269 ms 9480 KB Output is correct
56 Correct 136 ms 9344 KB Output is correct
57 Correct 128 ms 9276 KB Output is correct
58 Correct 129 ms 9376 KB Output is correct