Submission #982326

#	Time	Username	Problem	Language	Result	Execution time	Memory
982326		nnin	Permutation (APIO22_perm)	C++17	91.33 / 100	2 ms	348 KiB

perm

#include "perm.h"
#include<bits/stdc++.h>
using namespace std;
using ll = long long;

vector<int> construct_permutation(long long k)
{
	int g = __lg(k);
	vector<int> ans;
	int cur = 0;
	while(cur<g) {
		ans.push_back(cur++);
	}
	for(int i=g-1;i>=0;i--) {
		if(k & (1ll<<i)) {
			for(int j=0;j<ans.size();j++) if(ans[j]>=i) ans[j]++;
			ans.push_back(i);
		}
	}
	return ans;
}

Compilation message (stderr)

perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:16:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |    for(int j=0;j<ans.size();j++) if(ans[j]>=i) ans[j]++;
      |                ~^~~~~~~~~~~

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