Binary trees - C programming;

Write a program in C, you must have as input a .txt file (start.txt) which represents a binary tree, Edges as pairs (x, y), x and y refer to the names of the nodes , and have as output answering questions about the tree. Input (start.txt): (1,2) (1,3) (2,4) (2,5) (3,6) (3,7) (4,8)

Output(output.txt):

Is the tree complete? NO What is the weight of the tree? 4 Is it balanced? YES