제출 #618090

#제출 시각아이디문제언어결과실행 시간메모리
618090Lobo순열 (APIO22_perm)C++17
96.33 / 100
528 ms456 KiB
#include "perm.h"
#include<iostream>
#include<vector>
#include<deque>
using namespace std;
#define int long long

vector<int32_t> construct_permutation(int k)
{
	int k1 = k;
	int k2 = 1;
	vector<int> ks;
	for(int i = 1; i <= min((int) 5e5,k); i++) {
		if(k%i == 0) {
			ks.push_back(i);
			k/=i;
		}
	}
	ks.push_back(k);
    vector<int32_t> vc;
    for(auto k1 : ks) {
	    deque<int> ans;
	    int lg = 0;
	    for(int i = 0; i <= 60; i++) {
	    	if(k1 >= (1LL<<i)) lg = i;
	    }
	    for(int i = lg-1; i >= 0; i--) {
	        ans.push_back((int) ans.size()+vc.size());
	        if(k1&(1LL<<i)) ans.push_front((int) ans.size()+vc.size());
	    }
	    // cout << "   " << k1 << endl;
	    for(auto x : ans) {
	    	// cout << " 1 " << x << endl;
	    	vc.push_back(x);
	    }
	}
    return vc;
}

컴파일 시 표준 에러 (stderr) 메시지

perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:10:6: warning: unused variable 'k1' [-Wunused-variable]
   10 |  int k1 = k;
      |      ^~
perm.cpp:11:6: warning: unused variable 'k2' [-Wunused-variable]
   11 |  int k2 = 1;
      |      ^~
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