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thewolf said...

In Java you must force to decimal operation in ((totalCount + 1) / 2) because the result here is 60, the correct operation in Java is

int expectedSum = (int) (totalCount * ((float) (totalCount + 1) / 2));

Dec 15, 2015, 3:46:09 PM

Posted to How to Find Missing Number on Integer Array of 1 to 100 - BitSet Example