Submission #1020517

#	Time	Username	Problem	Language	Result	Execution time	Memory
1020517		overwatch9	Art Collections (BOI22_art)	C++17	Compilation error	0 ms	0 KiB

art

#include "art.h"
//
// --- 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
//
#include <bits/stdc++.h>
using namespace std;
int rng(int i) {
    return rand() % i;
}
int n;
int x;
bool comp(int a, int b) {
    vector <int> query(n);
    for (int i = 0; i < n; i++)
        query[i] = i+1;
    swap(query[a-1], query[b-1]);
    int y = publish(query);
    return y < x;
}
void solve(int N) {
    srand(time(0));
    n = N;
    vector <int> order(n);
    for (int i = 0; i < n; i++)
        order[i] = i+1;
    x = publish(order);
    merge_sort(order.begin(), order.end(), comp);
    answer(order);
}

Compilation message (stderr)

art.cpp: In function 'void solve(int)':
art.cpp:36:5: error: 'merge_sort' was not declared in this scope
   36 |     merge_sort(order.begin(), order.end(), comp);
      |     ^~~~~~~~~~
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) {
      |        ~~~~~~~~~^~~~