Submission #959327

#	Time	Username	Problem	Language	Result	Execution time	Memory
959327		zeta7532	Permutation (APIO22_perm)	C++17	91.33 / 100	2 ms	588 KiB

perm

#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;
	}
}

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:29:1: warning: control reaches end of non-void function [-Wreturn-type]
   29 | }
      | ^

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