/gist:0de3f031951988484f71
Created Apr 10, 2015
| int f(int x) { | |
| if (x == 0) | |
| return 0; | |
| int sign = x < 0 ? -1 : 1; | |
| return ((x&1) ? -x : +x) - sign; | |
| } |
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