grep command is used to search text or searches the given file for lines containing a match to the given strings or words.The grep search the string from given file and returns the number of occurrences and index for each string in the file. Write program to take file, search string and find the number of occurrences and list of index values from the given string.
Dictionary is an abstract data type composed of a collection of keys and values. The Dictionary does not take duplicate keys and must write to handle collisions that occur when two keys are mapped to same index.
Red Black tree is self-balanced binary search tree with color information. The Red-Black tree nodes can be either red or black. The color ensures tree balance. The root node and all leaves node set with black color. When inserting new item in the red-black tree, the tree balanced based on these properties. The search operation similar to the binary search tree.