Submission #1017969

#	Time	Username	Problem	Language	Result	Execution time	Memory
1017969		davit_tsibadze	Library (JOI18_library)	C++17	0 / 100	15 ms	344 KiB

library

#include <library.h>
#include <bits/stdc++.h>
using namespace std;

#define ff first
#define sc second
#define pb push_back
#define ll long long
#define pll pair<ll, ll>
#define pii pair<int, int>
 
const ll inf = 1e18;
// #define int long long
vector <int> ans, m;
void Solve(int N){
    int d;
    while(m.size() < N)m.pb(1);
    for (int i = 1; i <= N; i++){
        m[i - 1] = 0;
        if (Query(m) == 1){d = i; break;}
    }
    vector <int> a, ans; ans.pb(d);
    for (int i = 1; i <= N; i++) if (i != d)a.pb(i);
    while(a.size()){
        int l = 0, r = a.size() - 1, mid;
        while(l < r){
            mid = (l + r) / 2;
            for (int i = 0; i < m.size(); i++)
                m[i] = 0;
            for (int i = 0; i <= mid; i++)
                m[a[i] - 1] = 1;
            int x = Query(m);
            m[ans.back() - 1] = 1;
            int y = Query(m);
            if (x == y)r = mid;
            else l = mid + 1;
        }
        swap(a[l], a[a.size() - 1]);
        ans.pb(a.back()); a.pop_back();
    }
    Answer(ans);
}

Compilation message (stderr)

library.cpp: In function 'void Solve(int)':
library.cpp:17:20: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   17 |     while(m.size() < N)m.pb(1);
      |           ~~~~~~~~~^~~
library.cpp:28:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |             for (int i = 0; i < m.size(); i++)
      |                             ~~^~~~~~~~~~

• Subtask 1: 0 / 19
• Subtask 2: 0 / 81