Submission #980841

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
980841	2024-05-12 13:36:28	Malix	Permutation (APIO22_perm)	C++17	91.33 / 100	2 ms	604 KiB

perm

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#include "perm.h"
#include <bits/stdc++.h>
using namespace std;
typedef unsigned long long ll;
typedef vector<int> vi;
typedef vector<vi> vii;
typedef pair<int,int> pi;
typedef vector<pi> pii;
#define REP(i,a,b) for(int i=a;i<b;i++)
#define F first
#define S second
#define PB push_back
#define MP make_pair
ll INF=1e18+10;
std::vector<int> construct_permutation(long long k)
{
  if(k==1)return {};
  //k--;
  vi ans;
  int pos=-1;
  vector<ll> a(70,INF);
  REP(i,0,64)a[i]=pow(2,i);
  bool flag=1;
  int it=lower_bound(a.begin(),a.end(),k)-a.begin();
  if(a[it]!=k)it--;
 
 
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Compilation message (stderr)

perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:30:10: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<long long unsigned int>, long long unsigned int>::value_type' {aka 'long long unsigned int'} and 'long long int' [-Wsign-compare]
   30 |  if(a[it]!=k)it--;
perm.cpp:44:11: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<long long unsigned int>, long long unsigned int>::value_type' {aka 'long long unsigned int'} and 'long long int' [-Wsign-compare]
   44 |   if(a[it]!=k)it--;
perm.cpp:27:7: warning: unused variable 'flag' [-Wunused-variable]
   27 |  bool flag=1;
      |       ^~~~

• Subtask 1: 10 / 10
• Subtask 2: 81.333333333 / 90