oj.uz

Submission #1018661

# Submission time Handle Problem Language Result Execution time Memory
1018661 2024-07-10T07:59:31 Z NintsiChkhaidze Bitaro's travel (JOI23_travel) C++17
15 / 100
 3000 ms 3616 KB 
#include <bits/stdc++.h>
#define pb push_back
#define s second
#define f first
#define pb push_back
#define pii pair <int,int>
#define ll long long
#define left h*2,l,(l + r)/2
#define right h*2+1,(l + r)/2 + 1,r
using namespace std;

const int N = 3e5 + 5,mod = 1e9 + 7;
int a[N];

int main() {
  ios_base::sync_with_stdio(0),cin.tie(NULL),cout.tie(NULL);

  int n;
  cin>>n;

  for (int i = 1; i <= n; i++){
    cin >> a[i];
  }

  int q;
  cin>>q;

  while (q--){

    int s;
    cin>>s;

    int le = 1,ri = n,R = n + 1;
    while (le <= ri){
      int mid = (le + ri) >> 1;
      if (a[mid] > s) {
        R = mid;
        ri = mid - 1;
      }else{
        le = mid + 1;
      }
    }

    le = 1; ri = n; int L = 0;
    while (le <= ri){
      int mid = (le + ri) >> 1;
      if (a[mid] < s){
        L = mid;
        le = mid + 1;
      }else{
        ri = mid - 1;
      }
    }

    int ans=0;
    if (L == 0){
      ans += (a[n] - s);
      cout<<ans<<endl;
      continue;
    }else if (R == n + 1){
      ans += (s - a[1]);
      cout<<ans<<endl;
      continue;
    }

    int dir = 1;
    //dir == 1 -> right
    //dir == 0 <- left

    if (a[R] - s < s - a[L]){
      dir = 1;
      ans += (a[R] - s);
      s = a[R];
    }else{
      dir = 0;
      ans += (s - a[L]);
      s = a[L];
    }

    while (L != 0 && R != n + 1){
      if (dir == 1){
        // vedzebt R -ze meti an tol umcires r-s romlistvisac
        //2*x[r] - x[r + 1] <= x[L]
        int r = n;
        for (int i = R; i < n; i++){
          if (2*a[i] - a[i + 1] <= a[L]) {r = i; break;}
        }

        ans += a[r] - s;
        ans += a[r] - a[L];
        s = a[L];
        R = r + 1;
      }else{
        //vedzebt L-ze naklebi an tol udides l-s romlistvisac
        //2*x[l] - x[l - 1] > x[R] 

        int l = 1;
        for (int i = L; i > 1; i--){
          if (2*a[i] - a[i - 1] > a[R]) {l = i; break;}
        }

        ans += s - a[l];
        ans += a[R] - a[l];
        s = a[R];
        L = l - 1;
      }

      dir ^= 1;
    }

    if (L == 0){
      ans += (a[n] - s);
    }else if (R == n + 1){
      ans += (s - a[1]);
    }

    cout<<ans<<endl;
  }
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 21 ms 3008 KB Output is correct
18 Correct 14 ms 2972 KB Output is correct
19 Correct 14 ms 3164 KB Output is correct
20 Correct 14 ms 3156 KB Output is correct
21 Correct 13 ms 3156 KB Output is correct
22 Correct 14 ms 2908 KB Output is correct
23 Correct 14 ms 3164 KB Output is correct
24 Correct 13 ms 2908 KB Output is correct
25 Correct 14 ms 3160 KB Output is correct
26 Correct 14 ms 3160 KB Output is correct
27 Correct 14 ms 3164 KB Output is correct
28 Correct 14 ms 3164 KB Output is correct
29 Correct 16 ms 2896 KB Output is correct
30 Correct 13 ms 2904 KB Output is correct
31 Correct 17 ms 2908 KB Output is correct

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 456 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Execution timed out 3087 ms 3616 KB Time limit exceeded
8 Halted 0 ms 0 KB -

Subtask #4
0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 21 ms 3008 KB Output is correct
18 Correct 14 ms 2972 KB Output is correct
19 Correct 14 ms 3164 KB Output is correct
20 Correct 14 ms 3156 KB Output is correct
21 Correct 13 ms 3156 KB Output is correct
22 Correct 14 ms 2908 KB Output is correct
23 Correct 14 ms 3164 KB Output is correct
24 Correct 13 ms 2908 KB Output is correct
25 Correct 14 ms 3160 KB Output is correct
26 Correct 14 ms 3160 KB Output is correct
27 Correct 14 ms 3164 KB Output is correct
28 Correct 14 ms 3164 KB Output is correct
29 Correct 16 ms 2896 KB Output is correct
30 Correct 13 ms 2904 KB Output is correct
31 Correct 17 ms 2908 KB Output is correct
32 Correct 0 ms 456 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Execution timed out 3087 ms 3616 KB Time limit exceeded
39 Halted 0 ms 0 KB -