Submission #959326

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
959326	2024-04-08 01:39:53	zeta7532	Permutation (APIO22_perm)	C++17	Compilation error	0 ms	0 KiB

perm

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//#include "perm.h"
#include <bits/stdc++.h>
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
using namespace std;
using ll = long long;
const ll mod = 998244353;
#define fi first
#define se second
#define rep(i,n) for(ll i=0;i<n;i++)
#define all(x) x.begin(),x.end()
#define faster ios::sync_with_stdio(false);cin.tie(nullptr)
std::vector<int> construct_permutation(long long k)
{
    if(k==2) return {0};
  if(k%2==0){
      vector<int> A=construct_permutation(k/2);
      A.push_back(A.size());
      return A;
  }
  if(k%2==1){
      vector<int> A=construct_permutation(k-1);
      rep(i,A.size()) A[i]++;
      A.push_back(0);
      return A;
  }
}
 
 
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Compilation message (stderr)

perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:11:30: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 | #define rep(i,n) for(ll i=0;i<n;i++)
......
   25 |      rep(i,A.size()) A[i]++;
      |          ~~~~~~~~~~           
perm.cpp:25:6: note: in expansion of macro 'rep'
   25 |      rep(i,A.size()) A[i]++;
      |      ^~~
perm.cpp: In function 'bool check_permutation(std::vector<int>)':
perm.cpp:36:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |  for(int i=0;i<v.size();i++)
      |              ~^~~~~~~~~
perm.cpp: In function 'int main()':
perm.cpp:83:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   83 |   for(int i=0;i<ret.size();i++)
      |               ~^~~~~~~~~~~
perm.cpp:86:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   86 |    if(i+1==ret.size())
      |       ~~~^~~~~~~~~~~~
perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:29:1: warning: control reaches end of non-void function [-Wreturn-type]
   29 | }
      | ^
/usr/bin/ld: /tmp/ccCGJdSd.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccUVW3gf.o:perm.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status