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  1. #include <iostream>
  2. #include <cstdlib>
  3.  
  4. using namespace std;
  5.  
  6. int main() {
  7.   char chs[] = "123";
  8.   constexpr unsigned n = sizeof chs - 1;
  9.   bool used[n][n][n] = {};
  10.   constexpr unsigned nnn = sizeof used;
  11.  
  12.   printf("%u %u\n", n, nnn);
  13.  
  14.   for (int q = 0, i; q < nnn; ++q)
  15.   {
  16.     while (used[0][0][i = rand() % nnn]);
  17.     used[0][0][i] = true;
  18.     printf("%c%c%c\n", chs[i/n/n%n], chs[i/n%n], chs[i%n]);
  19.   }
  20.  
  21.   return 0;
  22. }
Success #stdin #stdout 0.01s 5516KB
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stdin
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Standard input is empty
stdout
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3 27
312
232
311
332
223
221
131
212
323
122
123
132
111
133
333
331
233
322
121
211
113
313
321
112
213
231
222
https://ideone.com/Bh1nUH
language:
C++14 (gcc 8.3)
created:
299 days ago
visibility:
public

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