Need answer in C (NOT C++) programming language

Write a function which takes four formal parameters: 1) an array of "int", 2) an "int" representing the length of the array, 3) a pointer to an "int", and 4) a pointer to an "int". This function will iterate over the array looking for the value the third parameter points to, and write the index of that value to where the fourth parameter points. If the value is not found in the array write " 1" to where the fourth parameter points. Use the following function signature: void findlnArray(int numbers[], int length, int "numToFind, int "index)