oj.uz

Submission #972464

# Submission time Handle Problem Language Result Execution time Memory
972464 2024-04-30T13:03:08 Z vjudge1 Bitaro's travel (JOI23_travel) C++17
15 / 100
 3000 ms 20640 KB 
#include <time.h>
#include <cstdlib>
#include <stack>
#include <numeric>
#include <unordered_map>
#include <unordered_set>
#include <iomanip>
#include <map>
#include <set>
#include <iterator>
#include <deque>
#include <queue>
#include <sstream>
#include <array>
#include <string>
#include <tuple>
#include <chrono>
#include <cassert>
#include <cstdio>
#include <cstring>
#include <list>
#include <iostream>
#include <vector>
#include <cmath>
#include <algorithm>
#include <bitset>
#define ll long long
using namespace std;

int tt = 1, n;
ll a[200005], dist, x[200005];
set<pair<ll, int>> st;
bool ok = 0;
ll pref[200005], suff[200005];
int main(){
    ios::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);
    cin >> n;
    for(int i = 1; i <= n; i++){
        cin >> a[i];
        st.insert({a[i], i});
        if(i > 1 && a[i] - a[i - 1] > 100) ok = 1;
    }
    cin >> tt;
    if(!ok){
        for(int i = 2; i <= n; i++)
            pref[i] = pref[i - 1] + (a[i] - a[i - 1]);
        for(int i = n - 1; i >= 1; i--)
            suff[i] = suff[i + 1] + (a[i + 1] - a[i]);
        while(tt--){
            ll pos, p1, p2, sum = 0;
            cin >> pos;
            deque<pair<ll, int>> d1, d2;
            if(a[1] <= pos){
                auto it = st.upper_bound({pos + 1, 0});
                it--;
                p1 = it->second;
                for(int i = p1; i >= 1; i--)
                    if(abs(pos - a[i]) <= 100) d1.push_front({a[i], i});    
            }
            if(a[n] > pos){
                auto it = st.upper_bound({pos + 1, 0});
                p2 = it->second;
                for(int i = p2; i <= n; i++)
                    if(abs(a[i] - pos) <= 100) d2.push_back({a[i], i});
            }
            if(d1.empty() || d2.empty()){
                if(pos <= a[1]) cout << pref[n] + a[1] - pos << "\n";
                else cout << suff[1] + pos - a[n] << "\n";
                continue;
            }
            int pos1 = d1.back().second, pos2 = d2.front().second;
            int t = 0;
            while(pos1 >= 1 && pos2 <= n){
                if(abs(pos - a[pos1]) <= abs(pos - a[pos2])){
                    sum += abs(pos - a[pos1]);
                    pos = a[pos1];
                    pos1--;
                }
                else{
                    sum +=  abs(pos - a[pos2]);
                    pos = a[pos2];
                    pos2++;
                }
                if(pos1 < 1 || pos2 > n){
                    t = -1;
                    break;
                }
                if(a[pos2] - pos > 100){
                    t = 1;
                    break;
                }
                if(pos - a[pos1] > 100){
                    break;
                }
            }
            if(t == -1){
                if(pos1 == 0) cout << sum + (a[n] - pos) << "\n";
                else cout << sum + (pos - a[1]) << "\n";
                continue;
            }
            if(t == 1){
                cout << sum + (pos1 - a[1]) + (a[n] - a[1]) << "\n";
                continue;
            }
            else{
                cout << sum + (a[n] - pos) + (a[n] - a[1]) << "\n";
                continue;
            }
        }
    }
    for(int i = 1; i <= tt; i++){
        cin >> x[i];
        ll sum = 0, pos = x[i];
        while(!st.empty()){
            ll x1 = 1e10, y1 = 1e10;
            pair<ll, int> p1, p2;
            if(st.begin()->first <= pos){
                auto it = st.lower_bound({pos, 0});
                it--;
                x1 = pos - it->first;
                p1 = *it;
            }
            if(st.rbegin()->first > pos){
                auto it = st.upper_bound({pos, 0});
                y1 = it->first - pos;
                p2 = *it;
            }
            if(x1 <= y1){
                sum += x1;
                pos -= x1;
                st.erase(p1);
            }   
            else{
                sum += y1;
                pos += y1;
                st.erase(p2);
            }
        }
        cout << sum << "\n";
    }
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2460 KB Output is correct
3 Correct 1 ms 2652 KB Output is correct
4 Correct 1 ms 2660 KB Output is correct
5 Correct 2 ms 2648 KB Output is correct
6 Correct 2 ms 2652 KB Output is correct
7 Correct 1 ms 2692 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2652 KB Output is correct
15 Correct 1 ms 2652 KB Output is correct
16 Correct 1 ms 2652 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2460 KB Output is correct
3 Correct 1 ms 2652 KB Output is correct
4 Correct 1 ms 2660 KB Output is correct
5 Correct 2 ms 2648 KB Output is correct
6 Correct 2 ms 2652 KB Output is correct
7 Correct 1 ms 2692 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2652 KB Output is correct
15 Correct 1 ms 2652 KB Output is correct
16 Correct 1 ms 2652 KB Output is correct
17 Correct 73 ms 18516 KB Output is correct
18 Correct 93 ms 18468 KB Output is correct
19 Correct 73 ms 18256 KB Output is correct
20 Correct 75 ms 18512 KB Output is correct
21 Correct 72 ms 18512 KB Output is correct
22 Correct 88 ms 18492 KB Output is correct
23 Correct 74 ms 18512 KB Output is correct
24 Correct 70 ms 18276 KB Output is correct
25 Correct 84 ms 18516 KB Output is correct
26 Correct 103 ms 18512 KB Output is correct
27 Correct 87 ms 18644 KB Output is correct
28 Correct 83 ms 18512 KB Output is correct
29 Correct 75 ms 18256 KB Output is correct
30 Correct 88 ms 18256 KB Output is correct
31 Correct 77 ms 18256 KB Output is correct

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Execution timed out 3074 ms 20640 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 2396 KB Output is correct
2 Correct 1 ms 2460 KB Output is correct
3 Correct 1 ms 2652 KB Output is correct
4 Correct 1 ms 2660 KB Output is correct
5 Correct 2 ms 2648 KB Output is correct
6 Correct 2 ms 2652 KB Output is correct
7 Correct 1 ms 2692 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2652 KB Output is correct
15 Correct 1 ms 2652 KB Output is correct
16 Correct 1 ms 2652 KB Output is correct
17 Correct 73 ms 18516 KB Output is correct
18 Correct 93 ms 18468 KB Output is correct
19 Correct 73 ms 18256 KB Output is correct
20 Correct 75 ms 18512 KB Output is correct
21 Correct 72 ms 18512 KB Output is correct
22 Correct 88 ms 18492 KB Output is correct
23 Correct 74 ms 18512 KB Output is correct
24 Correct 70 ms 18276 KB Output is correct
25 Correct 84 ms 18516 KB Output is correct
26 Correct 103 ms 18512 KB Output is correct
27 Correct 87 ms 18644 KB Output is correct
28 Correct 83 ms 18512 KB Output is correct
29 Correct 75 ms 18256 KB Output is correct
30 Correct 88 ms 18256 KB Output is correct
31 Correct 77 ms 18256 KB Output is correct
32 Correct 1 ms 2392 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 1 ms 2396 KB Output is correct
35 Correct 1 ms 2396 KB Output is correct
36 Correct 1 ms 2396 KB Output is correct
37 Correct 1 ms 2396 KB Output is correct
38 Execution timed out 3074 ms 20640 KB Time limit exceeded
39 Halted 0 ms 0 KB -