[BUG]: small bug in comb sort

[anonymouss]

C-Plus-Plus/sorting/comb_sort.cpp

Line 64 in e62e94d

for (int i = l; i <= r - gap; ++i) {

should be i < r - gap, otherwise, when i = r - gap, arr[i + gap] will be index out of bound.

btw, swapped flag seems to be redundant here in while (gap != 1 || swapped) {}, no matter swapped is true or false, loop ends when gap == 1

[Panquesito7]

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