Submission #881687

#	Time	Username	Problem	Language	Result	Execution time	Memory
881687		tsumondai	Permutation (APIO22_perm)	C++17	91.33 / 100	2 ms	600 KiB

perm

//#include "perm.h"
#include <bits/stdc++.h>
using namespace std;
 
#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define foru(i, l, r) for(int i = l; i <= r; i++)
#define ford(i, r, l) for(int i = r; i >= l; i--)
#define __TIME  (1.0 * clock() / CLOCKS_PER_SEC)
 
typedef pair<int, int> ii;
typedef pair<ii, int> iii;
typedef pair<ii, ii> iiii;
 
const int N = 1e6 + 5;
 
const int oo = 1e9, mod = 1e9 + 7;
 
vector<int> construct_permutation(long long k) {
	string bn="";
	while(k) {
		bn+=k%2+'0';
		k/=2;
	}
	reverse(bn.begin(),bn.end());
	vector<int> ret;
	long long cur=0;
	for(long long i=1;i<bn.size();i++) {
		ret.push_back(cur++);
		if(bn[i]=='1')
			ret.insert(ret.begin(),cur++);
	}
	return ret;
}
 
/*signed main() {
    cin.tie(0)->sync_with_stdio(false);
    //freopen(".inp", "r", stdin);
    //freopen(".out", "w", stdout);
    //process();
    cerr << "Time elapsed: " << __TIME << " s.\n";
    return 0;
}*/
 
/*
Xét các trường hợp đặc biệt
Kiểm tra lại input/output
Cố gắng trâu
Lật ngược bài toán
Keep calm and get VOI 
Flow:
 
*/

Compilation message (stderr)

perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:30:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |  for(long long i=1;i<bn.size();i++) {
      |                    ~^~~~~~~~~~

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