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  1. #include <iostream>
  2. #include <utility>
  3.  
  4. template <std::size_t... Is>
  5. auto print_sword(int n, std::index_sequence<Is...>) {
  6.     static constexpr char sp[] = "                                                                                                                                                                                                                                                                                                                        ";
  7.     static constexpr char ds[] = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------";
  8.  
  9.     using expander = int[];
  10.     (void)expander{0, (
  11.         (static_cast<int>(Is) + 1 <= 3 * n - 1) ? (
  12.             [&]() {
  13.                 int i = static_cast<int>(Is) + 1;
  14.                 int left_spaces = (i <= n) ? (n - i + 1) / 2 :
  15.                                   (i < 2 * n) ? (i - n + 1) / 2 :
  16.                                   (3 * n - i) / 2;
  17.  
  18.                 if (i == n) {
  19.                     if (n == 1) {
  20.                         std::cout.write("*\n", 2);
  21.                     } else {
  22.                         std::cout.put('*');
  23.                         std::cout.write(ds, 2 * n - 3);
  24.                         std::cout.write("*\n", 2);
  25.                     }
  26.                 } else if (i > 1 && i < 2 * n - 1) {
  27.                     int P = (n + 1) / 2;
  28.                     int inner = P - left_spaces - 1;
  29.                     std::cout.write(sp, left_spaces);
  30.                     std::cout.put('*');
  31.                     std::cout.write(sp, inner);
  32.                     std::cout.put('|');
  33.                     std::cout.write(sp, inner);
  34.                     std::cout.write("*\n", 2);
  35.                 } else {
  36.                     std::cout.write(sp, left_spaces);
  37.                     std::cout.write("*\n", 2);
  38.                 }
  39.             }(), 0
  40.         ) : 0
  41.     )...};
  42. }
  43.  
  44. auto main() -> int {
  45.     std::ios_base::sync_with_stdio(false);
  46.     std::cin.tie(nullptr);
  47.  
  48.     int n;
  49.     if (std::cin >> n) {
  50.         print_sword(n, std::make_index_sequence<300>{});
  51.     }
  52.  
  53.     return 0;
  54. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
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10
stdout
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     *
    *|*
    *|*
   * | *
   * | *
  *  |  *
  *  |  *
 *   |   *
 *   |   *
*-----------------*
 *   |   *
 *   |   *
  *  |  *
  *  |  *
   * | *
   * | *
    *|*
    *|*
     *
     *
    *
    *
   *
   *
  *
  *
 *
 *
*
https://ideone.com/zyxYmz
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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