Filling an array with random numbers from 1 to 10^10 in C or C++

Question

a part of an assignment of mine is based on an array (its size is given by the user) which contains random numbers from 1 to 10^10. Then we have to find the k-th smaller number

Answer 1

you forgot your return statements. at the end of find1 you should be doing:

if (k==j)
    return arr[j];
else if (k