Chef and Integers

Chef has an array of N integers. He wants to play a special game. In this game he needs to make all the integers in the array greater than or equal to 0. Chef can use two types of operations. The first type is to increase all the integers of the given array by 1, but it costs X coins. The operation of the second type is to add 1 to only one integer of the given array and to use this operation you