https://leetcode.com/problems/minimum-operations-to-make-the-array-increasing

function minOperations(nums: number[]): number {
    let ops = 0;
    let last = 0;
    for(const i of nums) {
        let newNum = i;
        if (i <= last) {
            ops += last+1-newNum;
            newNum = last+1;
        }
        last = newNum;
    }

    return ops;
};