Submission #595518

#	Time	Username	Problem	Language	Result	Execution time	Memory
595518		Hacv16	Art Collections (BOI22_art)	C++17	Compilation error	0 ms	0 KiB

art

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

typedef long long ll;
typedef pair<int, int> pii;

const int MAX = 2e6 + 15;
const int INF = 0x3f3f3f3f;
const int MOD = 1e9 + 7;

#define pb push_back
#define sz(x) (int) x.size()
#define fr first
#define sc second
#define mp make_pair
#define all(x) x.begin(), x.end()
#define dbg(x) cout << #x << ": " << "[ " << x << " ]\n"

int inversions = 0, n;

bool cmp(int a, int b){
	vector<int> aux(n);
	iota(all(aux), 1);
	
	for(int i = 0; i < n; i++){		
		if(aux[i] == a) aux[i] = b;
		else if(aux[i] == b) aux[i] = a;
	}
	
	int cur = publish(aux);
	
	if(a > b) return cur < inversions;
	return cur > inversions;
}

void solve(int N){
	n = N;
	
	vector<int> v(n);
	iota(all(v), 1);
	
	inversions = publish(v);
	
	qsort(all(v), cmp);
	
	answer(v);
}

Compilation message (stderr)

art.cpp: In function 'void solve(int)':
art.cpp:17:23: error: cannot convert 'std::vector<int>::iterator' to 'void*'
   17 | #define all(x) x.begin(), x.end()
      |                       ^
      |                       |
      |                       std::vector<int>::iterator
art.cpp:45:8: note: in expansion of macro 'all'
   45 |  qsort(all(v), cmp);
      |        ^~~
In file included from /usr/include/c++/10/bits/std_abs.h:38,
                 from /usr/include/c++/10/cmath:47,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from art.cpp:1:
/usr/include/stdlib.h:830:26: note:   initializing argument 1 of 'void qsort(void*, size_t, size_t, __compar_fn_t)'
  830 | extern void qsort (void *__base, size_t __nmemb, size_t __size,
      |                    ~~~~~~^~~~~~
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) {
      |        ~~~~~~~~~^~~~