1) Write down a program which asks user in order to enter up to 20 integers in the array of longs. Then, program must ask user in order to enter an integer. The program must utilize the function Find_It() in order to situate the integer within the array. Third argument in the Find_It() is the address of found integer. The function must return 1 in case the integer is found and otherwise0. If integer is found, program must substitute the integer through its negative and show the elements within the array. If the integer is not found, show a suitable message.