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  1. #include <iostream>
  2. #include <algorithm>
  3.  
  4. int main()
  5. {
  6.     int n, m, code_count = 0;
  7.     std::cin >> n >> m;
  8.     std::string code(n, '0');
  9.     code[n - 1] = '1';
  10.     for (int i = 1; i < m && code_count < m; ++i)
  11.     {
  12.         while (next_permutation(code.end() - i, code.end()) && code_count < m)
  13.             ++code_count;
  14.         code[code.size() - i - 1] = '1';
  15.         ++code_count;
  16.     }
  17.     std::cout << code;
  18.     return 0;
  19. }
  20.  
Success #stdin #stdout 0s 4248KB
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https://ideone.com/uBg8lB
language:
C++14 (clang 8.0)
created:
7 years ago
visibility:
public

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