oj.uz

Submission #796014

# Submission time Handle Problem Language Result Execution time Memory
796014 2023-07-28T04:15:19 Z 이동현(#10071) Bitaro's travel (JOI23_travel) C++17
15 / 100
 3000 ms 650204 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#define int long long
using namespace std;

const int NS = (int)2e5 + 4;
int n, q;
int a[NS];

unordered_map<int, int> dp[NS][2];

int sol(int l, int r, int dir){
    if(l == 0 && r == n - 1) return 0;
    if(dp[l][dir][r]) return dp[l][dir][r];

    int rv = 0;
    if(!dir){
        if(l && (r == n - 1 || a[l] - a[l - 1] <= a[r + 1] - a[l])){
            rv = a[l] - a[l - 1] + sol(l - 1, r, 0);
        }
        else{
            rv = a[r + 1] - a[l] + sol(l, r + 1, 1);
        }
    }
    else{
        if(l && (r == n - 1 || a[r] - a[l - 1] <= a[r + 1] - a[r])){
            rv = a[r] - a[l - 1] + sol(l - 1, r, 0);
        }
        else{
            rv = a[r + 1] - a[r] + sol(l, r + 1, 1);
        }
    }

    return (dp[l][dir][r] = rv);
}

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    cin >> n;
    for(int i = 0; i < n; ++i){
        cin >> a[i];
    }
    cin >> q;
    while(q--){
        int x;
        cin >> x;

        int p = lower_bound(a, a + n, x) - a;

        if(p == n || (p && x - a[p - 1] <= a[p] - x)){
            --p;
        }

        cout << sol(p, p, 0) + abs(a[p] - x) << '\n';
    }
    
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 22228 KB Output is correct
2 Correct 12 ms 22484 KB Output is correct
3 Correct 12 ms 22480 KB Output is correct
4 Correct 12 ms 22356 KB Output is correct
5 Correct 12 ms 22484 KB Output is correct
6 Correct 12 ms 22484 KB Output is correct
7 Correct 12 ms 22476 KB Output is correct
8 Correct 12 ms 22228 KB Output is correct
9 Correct 11 ms 22228 KB Output is correct
10 Correct 12 ms 22228 KB Output is correct
11 Correct 11 ms 22228 KB Output is correct
12 Correct 11 ms 22228 KB Output is correct
13 Correct 14 ms 22356 KB Output is correct
14 Correct 12 ms 22524 KB Output is correct
15 Correct 12 ms 22484 KB Output is correct
16 Correct 11 ms 22392 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 22228 KB Output is correct
2 Correct 12 ms 22484 KB Output is correct
3 Correct 12 ms 22480 KB Output is correct
4 Correct 12 ms 22356 KB Output is correct
5 Correct 12 ms 22484 KB Output is correct
6 Correct 12 ms 22484 KB Output is correct
7 Correct 12 ms 22476 KB Output is correct
8 Correct 12 ms 22228 KB Output is correct
9 Correct 11 ms 22228 KB Output is correct
10 Correct 12 ms 22228 KB Output is correct
11 Correct 11 ms 22228 KB Output is correct
12 Correct 11 ms 22228 KB Output is correct
13 Correct 14 ms 22356 KB Output is correct
14 Correct 12 ms 22524 KB Output is correct
15 Correct 12 ms 22484 KB Output is correct
16 Correct 11 ms 22392 KB Output is correct
17 Correct 54 ms 49472 KB Output is correct
18 Correct 57 ms 50544 KB Output is correct
19 Correct 65 ms 55572 KB Output is correct
20 Correct 86 ms 60536 KB Output is correct
21 Correct 84 ms 61280 KB Output is correct
22 Correct 51 ms 46724 KB Output is correct
23 Correct 56 ms 50232 KB Output is correct
24 Correct 80 ms 61864 KB Output is correct
25 Correct 60 ms 51976 KB Output is correct
26 Correct 65 ms 53368 KB Output is correct
27 Correct 78 ms 55540 KB Output is correct
28 Correct 69 ms 55996 KB Output is correct
29 Correct 65 ms 54816 KB Output is correct
30 Correct 70 ms 54808 KB Output is correct
31 Correct 65 ms 54780 KB Output is correct

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 22148 KB Output is correct
2 Correct 11 ms 22156 KB Output is correct
3 Correct 12 ms 22228 KB Output is correct
4 Correct 11 ms 22148 KB Output is correct
5 Correct 13 ms 22228 KB Output is correct
6 Correct 11 ms 22228 KB Output is correct
7 Execution timed out 3081 ms 650204 KB Time limit exceeded
8 Halted 0 ms 0 KB -

Subtask #4
0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 22228 KB Output is correct
2 Correct 12 ms 22484 KB Output is correct
3 Correct 12 ms 22480 KB Output is correct
4 Correct 12 ms 22356 KB Output is correct
5 Correct 12 ms 22484 KB Output is correct
6 Correct 12 ms 22484 KB Output is correct
7 Correct 12 ms 22476 KB Output is correct
8 Correct 12 ms 22228 KB Output is correct
9 Correct 11 ms 22228 KB Output is correct
10 Correct 12 ms 22228 KB Output is correct
11 Correct 11 ms 22228 KB Output is correct
12 Correct 11 ms 22228 KB Output is correct
13 Correct 14 ms 22356 KB Output is correct
14 Correct 12 ms 22524 KB Output is correct
15 Correct 12 ms 22484 KB Output is correct
16 Correct 11 ms 22392 KB Output is correct
17 Correct 54 ms 49472 KB Output is correct
18 Correct 57 ms 50544 KB Output is correct
19 Correct 65 ms 55572 KB Output is correct
20 Correct 86 ms 60536 KB Output is correct
21 Correct 84 ms 61280 KB Output is correct
22 Correct 51 ms 46724 KB Output is correct
23 Correct 56 ms 50232 KB Output is correct
24 Correct 80 ms 61864 KB Output is correct
25 Correct 60 ms 51976 KB Output is correct
26 Correct 65 ms 53368 KB Output is correct
27 Correct 78 ms 55540 KB Output is correct
28 Correct 69 ms 55996 KB Output is correct
29 Correct 65 ms 54816 KB Output is correct
30 Correct 70 ms 54808 KB Output is correct
31 Correct 65 ms 54780 KB Output is correct
32 Correct 11 ms 22148 KB Output is correct
33 Correct 11 ms 22156 KB Output is correct
34 Correct 12 ms 22228 KB Output is correct
35 Correct 11 ms 22148 KB Output is correct
36 Correct 13 ms 22228 KB Output is correct
37 Correct 11 ms 22228 KB Output is correct
38 Execution timed out 3081 ms 650204 KB Time limit exceeded
39 Halted 0 ms 0 KB -