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  1. #include <iostream>
  2.  
  3. int main()
  4. {
  5. for ( int i = 0; i <= 23; i++ )
  6. {
  7. int hours24 = i;
  8. int hours12 = hours24 == 0 ? 12 : hours24 <= 12 ? hours24 : hours24 - 12;
  9. printf( "i = %d, hours12 = %d%d\n", i, hours12 / 10, hours12 % 10 );
  10. }
  11.  
  12. return 0;
  13. }
Success #stdin #stdout 0s 5388KB
stdin
Standard input is empty
stdout
i = 0, hours12 = 12
i = 1, hours12 = 01
i = 2, hours12 = 02
i = 3, hours12 = 03
i = 4, hours12 = 04
i = 5, hours12 = 05
i = 6, hours12 = 06
i = 7, hours12 = 07
i = 8, hours12 = 08
i = 9, hours12 = 09
i = 10, hours12 = 10
i = 11, hours12 = 11
i = 12, hours12 = 12
i = 13, hours12 = 01
i = 14, hours12 = 02
i = 15, hours12 = 03
i = 16, hours12 = 04
i = 17, hours12 = 05
i = 18, hours12 = 06
i = 19, hours12 = 07
i = 20, hours12 = 08
i = 21, hours12 = 09
i = 22, hours12 = 10
i = 23, hours12 = 11