제출 #742580

#제출 시각아이디문제언어결과실행 시간메모리
742580fanwen순열 (APIO22_perm)C++17
91.33 / 100
2 ms376 KiB
#include <bits/stdc++.h> #include "perm.h" using namespace std; 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; int cur=0; for(int i=1;i<bn.size();i++) { ret.push_back(cur++); if(bn[i]=='1') ret.insert(ret.begin(),cur++); } return ret; }

컴파일 시 표준 에러 (stderr) 메시지

perm.cpp: In function 'std::vector<int> construct_permutation(long long int)':
perm.cpp:15:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |  for(int i=1;i<bn.size();i++)
      |              ~^~~~~~~~~~
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