Qualcomm interview question

Programms to Write: * Find what's wrong with this function? void copydata(uint8_t *datato, uint8_t *datafrom, int size) { uint8_t *CurrentAddress = datafrom; uint8_t *StopAddress = datafrom + size; for(;CurrentAddress <= StopAddress;CurrentAddress++) *CurrentAddress = *datafrom++; } * Write algorithm to find missing element in array. For example int array[5] = {1, 2, 0, 3, 4}; this array should contain # from 1 to 5. # 5 is missing. * find a element in array size of n using binary search method. * Write a small program that add element into linked list at beginning of the list, and back of the list? * Swap the bit order in a byte (example bit 7 would goto bit 0, bit 0 would goto bit 1) * Write a small test program that would test the read/write memory? What good value to write if you want to test if there two data lines tight together?