Submission #746465

#	Time	Username	Problem	Language	Result	Execution time	Memory
746465		Szil	Art Collections (BOI22_art)	C++17	100 / 100	1705 ms	676 KiB

art

#include "art.h"

#include <bits/stdc++.h>

using namespace std;

int ask(int first, int n) {
    vector<int> q;
    for (int i = first; i <= n; i++) {
        q.push_back(i);
    }
    for (int i = 1; i < first; i++)  {
        q.push_back(i);
    }
    return publish(q);
}

void solve(int n) {
    int x = ask(1, n);
    cerr << x << endl;
    vector<int> ans(n);
    for (int i = 2; i <= n; i++) {
        int y = ask(i, n);
        int delta = x-y;
        int rank = (delta + 1 + n) / 2;
        ans[rank-1] = i-1;
        x = y;
    }
    for (int &i : ans) {
        if (i == 0) {
            i = n;
            break;
        }
    }
    answer(ans);
}

Compilation message (stderr)

interface.cpp: In function 'int publish(std::vector<int>)':
interface.cpp:20:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   20 |     if(v.size() != N) {
      |        ~~~~~~~~~^~~~
interface.cpp: In function 'void answer(std::vector<int>)':
interface.cpp:36:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   36 |     if(v.size() != N) {
      |        ~~~~~~~~~^~~~

• Subtask 1: 5 / 5
• Subtask 2: 15 / 15
• Subtask 3: 15 / 15
• Subtask 4: 15 / 15
• Subtask 5: 20 / 20
• Subtask 6: 30 / 30