There is also a function void insert(struct kTreeNode *root, string key) that inserts a keyword into the keyword tree. This function is already implemented for you. See the code to see more documentation for this function.

People with high self-esteem: accept their strengths and weaknesses. believe that failed experiences are failures of their whole self. feel good about who they are only when they reach total success. need positive external experiences to counteract negative feelings that constantly plague them.