https://codeforces.com/contest/1635/problem/B Problem - B - Codeforces codeforces.com 문제 You are given an array 𝑎a of size 𝑛. Each element in this array is an integer between 1 and 10^9. You can perform several operations to this array. During an operation, you can replace an element in the array with any integer between 1and 10^9. Output the minimum number of operations needed such that the res..