*Total -- 8,963.14kb -> 7,069.78kb (21.12%)

/notes/algo development techniques.png -- 448.58kb -> 321.93kb (28.23%)
/notes/trees/Onumber of tree with array and linked list.png -- 1,037.87kb -> 773.40kb (25.48%)
/notes/essential knowledge for facebook interview.png -- 992.29kb -> 751.78kb (24.24%)
/notes/trees/tree represented in array.png -- 832.40kb -> 641.88kb (22.89%)
/notes/trees/tree representation as linke list.png -- 841.41kb -> 661.34kb (21.4%)
/notes/trees/types of trees.png -- 1,124.40kb -> 889.58kb (20.88%)
/notes/sorting/in order traversal algo.png -- 632.98kb -> 507.46kb (19.83%)
/notes/trees/in order traversal algo.png -- 632.98kb -> 507.46kb (19.83%)
/notes/trees/level order traversal Breadth first.png -- 639.58kb -> 521.93kb (18.4%)
/notes/sorting/level order traversal Breadth first.png -- 639.58kb -> 521.93kb (18.4%)
/notes/trees/tree terminology.png -- 940.36kb -> 780.29kb (17.02%)
/notes/hashing/hashmap.png -- 28.79kb -> 26.73kb (7.13%)
/src/me/premaseem/datastructure/hashtable/hashmap.png -- 28.79kb -> 26.73kb (7.13%)
/src/me/premaseem/algorithm/insersionSort/insertion sort.jpg -- 113.32kb -> 108.27kb (4.45%)
/notes/sorting/mergeSort.gif -- 29.81kb -> 29.06kb (2.51%)

Signed-off-by: ImgBotApp <[email protected]>