Please solve the problems in C

1) Consider the case when a person introduces her/his personal details and based on a provided amount of money which the person has, multiple threads compute how much the person can earn if the money are deposited for maximum 10 years at a bank where the interest is of 0.7% per month. Solve the problem using global and static variables.

2) Write a program based on threads which will compute the number of occurrences of a specific word inside multiple files that exist at a provided path.