oj.uz

Submission #1103863

# Submission time Handle Problem Language Result Execution time Memory
1103863 2024-10-22T03:59:45 Z lampooppp Bitaro's travel (JOI23_travel) C++17
15 / 100
 3000 ms 3664 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;

const int N=2e5;
int a[N+1];
int n,q;


int32_t main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
//    freopen("ex_interval3.in", "r", stdin);
    cin >> n;
    for(int i=1;i<=n;++i) cin >> a[i];
    cin >> q;
    while(q--)
    {
        int x;
        cin >> x;
        int id = lower_bound(a+1,a+n+1,x)-a;
        int sum=0;
        if(id==1)
        {
            cout << a[n]-x << '\n';
            continue;
        }
        if(id==n+1)
        {
            cout << x-a[1] << '\n';
            continue;
        }
        int l=id-1;
        int r=id;
        int now;
        if(x-a[l]<=a[r]-x)
        {
            now=0;
            r=l;
            sum=x-a[l];
        }
        else
        {
            now=1;
            l=r;
            sum=a[r]-x;
        }
        bool done=false;
        while(l>1 || r<n)
        {
            if(r==n || l==1)
            {
                cout << sum+(a[n]-a[1]) << '\n';
                done=true;
                break;
            }
            if(now==0)
            {
                int x = a[l]-a[l-1];
                int id = lower_bound(a+r+1,a+n+1,a[l]+x)-a-1;
                if(id==r) {
                    sum+=x;
                    l--;
                }
                else
                {
                    sum+=a[id]-a[l];
                    r=id;
                    now=1;
                }
            }
            else
            {
                int x = a[r+1]-a[r];
                int id = lower_bound(a+1,a+l,a[r]-x)-a;
                if(id==l) {
                    sum+=x;
                    r++;
                }
                else
                {
                    sum+=a[r]-a[id];
                    l=id;
                    now=0;
                }
            }
        }

    }

}

//9 4
//2 5
//1 7
//6 7
//1 4
//3 5
//0 8
//1 7
//1 2
//9 10

Compilation message

travel.cpp: In function 'int32_t main()':
travel.cpp:49:14: warning: variable 'done' set but not used [-Wunused-but-set-variable]
   49 |         bool done=false;
      |              ^~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 592 KB Output is correct
11 Correct 1 ms 504 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 504 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 592 KB Output is correct
11 Correct 1 ms 504 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 504 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 17 ms 3664 KB Output is correct
18 Correct 18 ms 1972 KB Output is correct
19 Correct 19 ms 3300 KB Output is correct
20 Correct 19 ms 1964 KB Output is correct
21 Correct 21 ms 1872 KB Output is correct
22 Correct 17 ms 1872 KB Output is correct
23 Correct 16 ms 3536 KB Output is correct
24 Correct 17 ms 3664 KB Output is correct
25 Correct 16 ms 1872 KB Output is correct
26 Correct 17 ms 2012 KB Output is correct
27 Correct 19 ms 2888 KB Output is correct
28 Correct 19 ms 3144 KB Output is correct
29 Correct 16 ms 1872 KB Output is correct
30 Correct 25 ms 2896 KB Output is correct
31 Correct 18 ms 3664 KB Output is correct

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Execution timed out 3091 ms 1872 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 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 592 KB Output is correct
11 Correct 1 ms 504 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 504 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 17 ms 3664 KB Output is correct
18 Correct 18 ms 1972 KB Output is correct
19 Correct 19 ms 3300 KB Output is correct
20 Correct 19 ms 1964 KB Output is correct
21 Correct 21 ms 1872 KB Output is correct
22 Correct 17 ms 1872 KB Output is correct
23 Correct 16 ms 3536 KB Output is correct
24 Correct 17 ms 3664 KB Output is correct
25 Correct 16 ms 1872 KB Output is correct
26 Correct 17 ms 2012 KB Output is correct
27 Correct 19 ms 2888 KB Output is correct
28 Correct 19 ms 3144 KB Output is correct
29 Correct 16 ms 1872 KB Output is correct
30 Correct 25 ms 2896 KB Output is correct
31 Correct 18 ms 3664 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 1 ms 336 KB Output is correct
37 Correct 1 ms 336 KB Output is correct
38 Execution timed out 3091 ms 1872 KB Time limit exceeded
39 Halted 0 ms 0 KB -