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    copied!<blockquote> <p>If we analyze it seems set size should be 8 which is the size of the array. But if you ran this program it prints 14. What's going on? Any idea?</p> </blockquote> <p>Just trace info</p> <pre><code>1 : 786 - 786 = 0 (new one 1 ) 2 : 786 - 678 = 108 (new one 2 ) 3 : 786 - 567 = 219 (new one 3 ) 4 : 786 - 456 = 330 (new one 4 ) 5 : 786 - 345 = 441 (new one 5 ) 6 : 786 - 234 = 552 (new one 6 ) 7 : 786 - 123 = 663 (new one 7 ) 8 : 786 - 10 = 776 (new one 8 ) 9 : 678 - 678 = 0 (already contained) 10 : 678 - 567 = 111 (new one 9 ) 11 : 678 - 456 = 222 (new one 10 ) 12 : 678 - 345 = 333 (new one 11 ) 13 : 678 - 234 = 444 (new one 12 ) 14 : 678 - 123 = 555 (new one 13 ) 15 : 678 - 10 = 668 (new one 14 ) 16 : 567 - 567 = 0 (already contained) 17 : 567 - 456 = 111 (already contained) 18 : 567 - 345 = 222 (already contained) 19 : 567 - 234 = 333 (already contained) 20 : 567 - 123 = 444 (already contained) 21 : 567 - 10 = 557 (new one 15 ) 22 : 456 - 456 = 0 (already contained) 23 : 456 - 345 = 111 (already contained) 24 : 456 - 234 = 222 (already contained) 25 : 456 - 123 = 333 (already contained) 26 : 456 - 10 = 446 (new one 16 ) 27 : 345 - 345 = 0 (already contained) 28 : 345 - 234 = 111 (already contained) 29 : 345 - 123 = 222 (already contained) 30 : 345 - 10 = 335 (new one 17 ) 31 : 234 - 234 = 0 (already contained) 32 : 234 - 123 = 111 (already contained) 33 : 234 - 10 = 224 (new one 18 ) 34 : 123 - 123 = 0 (already contained) 35 : 123 - 10 = 113 (new one 19 ) 36 : 10 - 10 = 0 (already contained) </code></pre> <p>Also, debugger is a great thing in cases when you can't analyze program's behavior ;)</p>
 

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