Submission #876967

#	Time	Username	Problem	Language	Result	Execution time	Memory
876967		andrei_iorgulescu	Art Collections (BOI22_art)	C++17	100 / 100	1272 ms	1768 KiB

art

#include <bits/stdc++.h>
#include "art.h"

using namespace std;
//
// --- Sample implementation for the task art ---
//
// To compile this program with the sample grader, place:
//     art.h art_sample.cpp sample_grader.cpp
// in a single folder, then open the terminal in this directory (right-click onto an empty spot in the directory,
// left click on "Open in terminal") and enter e.g.:
//     g++ -std=c++17 art_sample.cpp sample_grader.cpp
// in this folder. This will create a file a.out in the current directory which you can execute from the terminal
// as ./a.out
// See task statement or sample_grader.cpp for the input specification
//

void solve(int n)
{
    vector<int>aux;
    for (int i = 1; i <= n; i++)
        aux.push_back(i);
    int total = publish(aux);
    vector<int>o;
    o.push_back(1);
    for (int i = 2; i <= n; i++)
    {
        vector<int>cur;
        cur.push_back(i);
        for (int j = 2; j < i; j++)
            cur.push_back(j);
        cur.push_back(1);
        for (int j = i + 1; j <= n; j++)
            cur.push_back(j);
        int inv = publish(cur);
        int po;
        for (int j = 0; j < o.size(); j++)
            if (o[j] == 1)
                po = j;
        int k = (inv - total + 2 * po + 1) / 2;
        vector<int>newo;
        for (int j = 0; j < k; j++)
            newo.push_back(o[j]);
        newo.push_back(i);
        for (int j = k; j < o.size(); j++)
            newo.push_back(o[j]);
        o = newo;
    }
    answer(o);
}

Compilation message (stderr)

art.cpp: In function 'void solve(int)':
art.cpp:37:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |         for (int j = 0; j < o.size(); j++)
      |                         ~~^~~~~~~~~~
art.cpp:45:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |         for (int j = k; j < o.size(); j++)
      |                         ~~^~~~~~~~~~
art.cpp:40:34: warning: 'po' may be used uninitialized in this function [-Wmaybe-uninitialized]
   40 |         int k = (inv - total + 2 * po + 1) / 2;
      |                                ~~^~~~
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