oj.uz

Submission #1119291

# Submission time Handle Problem Language Result Execution time Memory
1119291 2024-11-26T18:13:27 Z thangdz2k7 Library (JOI18_library) C++17
100 / 100
 439 ms 592 KB 
// author : thembululquaUwU
// 3.9.2024

#include <bits/stdc++.h>
#include "library.h"
#define pb push_back
#define fi first
#define se second
#define endl '\n'

using namespace std;
using ll = long long;
using ii = pair <int, int>;
using vi = vector <int>;

const int N = 1e5 + 5;
const int mod = 1e9 + 7;

void maxl(auto &a, auto b) {a = max(a, b);}
void minl(auto &a, auto b) {a = min(a, b);}

// grader

//int n, p[N];
//
//int Query(vector <int> qr){
//    int ans = 0;
//    for (int i = 1; i <= n; ++ i) if (qr[p[i]] == 1 && (i == 1 || !qr[p[i - 1]])) ++ ans;
//    return ans;
//}
//
//void Answer(vector <int> ans){
//    for (int f : ans) cout << f << ' ';
//}

// end

void Solve(int n){
    vector <int> a(n);
    iota(a.begin(), a.end(), 0);

    auto del = [&](int x) -> void {
        a.erase(a.begin() + x);
    };

    vector <int> qr(n, 1);
    int st = 0;
    for (int i = 1; i < n; ++ i){
        qr[i] = 0;
        if (Query(qr) == 1){
            st = i;
            break;
        }
        qr[i] = 1;
    }

    vector <int> ans = {st};
    del(st);
    for (int loops = 1; loops < n; ++ loops){
        int l = 0, r = a.size() - 1; //, g = 0;
        while (l < r){
            int mid = l + r >> 1;
            qr.assign(n, 0);
            for (int i = 0; i <= mid; ++ i) qr[a[i]] = 1;
            int res = Query(qr);
            qr[ans.back()] = 1;
            if (res == Query(qr)) r = mid;
            else l = mid + 1;
        }
        ans.push_back(a[l]);
        del(l);
    }

    for (int &f : ans) f ++;
    Answer(ans);
}

//void solve(){
//    cin >> n;
//    for (int i = 1; i <= n; ++ i) cin >> p[i], p[i] --;
//    Solve(n);
//}
//
//int main(){
//    if (fopen("Library.inp", "r")){
//        freopen("Library.inp", "r", stdin);
//        freopen("Library.out", "w", stdout);
//    }
//    ios_base::sync_with_stdio(0);
//    cin.tie(0); cout.tie(0);
//
//    int t = 1; // cin >> t;
//    while (t --) solve();
//    return 0;
//}

Compilation message

library.cpp:19:11: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   19 | void maxl(auto &a, auto b) {a = max(a, b);}
      |           ^~~~
library.cpp:19:20: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   19 | void maxl(auto &a, auto b) {a = max(a, b);}
      |                    ^~~~
library.cpp:20:11: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   20 | void minl(auto &a, auto b) {a = min(a, b);}
      |           ^~~~
library.cpp:20:20: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   20 | void minl(auto &a, auto b) {a = min(a, b);}
      |                    ^~~~
library.cpp: In function 'void Solve(int)':
library.cpp:62:25: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   62 |             int mid = l + r >> 1;
      |                       ~~^~~

Subtask #1
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 436 KB # of queries: 2386
2 Correct 48 ms 436 KB # of queries: 2432
3 Correct 53 ms 336 KB # of queries: 2637
4 Correct 52 ms 336 KB # of queries: 2592
5 Correct 47 ms 444 KB # of queries: 2503
6 Correct 55 ms 436 KB # of queries: 2552
7 Correct 57 ms 592 KB # of queries: 2567
8 Correct 49 ms 436 KB # of queries: 2401
9 Correct 57 ms 440 KB # of queries: 2511
10 Correct 32 ms 588 KB # of queries: 1477
11 Correct 1 ms 336 KB # of queries: 0
12 Correct 1 ms 336 KB # of queries: 1
13 Correct 1 ms 336 KB # of queries: 3
14 Correct 1 ms 336 KB # of queries: 9
15 Correct 3 ms 336 KB # of queries: 79
16 Correct 4 ms 336 KB # of queries: 186

Subtask #2
81.0 / 81.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 436 KB # of queries: 2386
2 Correct 48 ms 436 KB # of queries: 2432
3 Correct 53 ms 336 KB # of queries: 2637
4 Correct 52 ms 336 KB # of queries: 2592
5 Correct 47 ms 444 KB # of queries: 2503
6 Correct 55 ms 436 KB # of queries: 2552
7 Correct 57 ms 592 KB # of queries: 2567
8 Correct 49 ms 436 KB # of queries: 2401
9 Correct 57 ms 440 KB # of queries: 2511
10 Correct 32 ms 588 KB # of queries: 1477
11 Correct 1 ms 336 KB # of queries: 0
12 Correct 1 ms 336 KB # of queries: 1
13 Correct 1 ms 336 KB # of queries: 3
14 Correct 1 ms 336 KB # of queries: 9
15 Correct 3 ms 336 KB # of queries: 79
16 Correct 4 ms 336 KB # of queries: 186
17 Correct 439 ms 444 KB # of queries: 18007
18 Correct 415 ms 444 KB # of queries: 17230
19 Correct 405 ms 440 KB # of queries: 17450
20 Correct 371 ms 444 KB # of queries: 16276
21 Correct 365 ms 436 KB # of queries: 15361
22 Correct 423 ms 436 KB # of queries: 17616
23 Correct 438 ms 440 KB # of queries: 17169
24 Correct 178 ms 436 KB # of queries: 7884
25 Correct 392 ms 440 KB # of queries: 17117
26 Correct 391 ms 436 KB # of queries: 15988
27 Correct 172 ms 436 KB # of queries: 7993
28 Correct 381 ms 440 KB # of queries: 16955
29 Correct 393 ms 440 KB # of queries: 16936
30 Correct 380 ms 436 KB # of queries: 16955