How to Solve Make Array Strictly Increasing Leetcode Problem - Interview Coder Guide
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How to Solve Make Array Strictly Increasing Problem

Master the Make Array Strictly Increasing LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.

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Hard#1290
LeetCode Problem

Make Array Strictly Increasing

Given two integer arrays arr1 and arr2, return the minimum number of operations (possibly zero) needed to make arr1 strictly increasing. In one operation, you can choose two indices 0 <= i < arr1.leng...

ArrayBinary SearchDynamic Programming+1 more

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Problem Breakdown

Understanding the Make Array Strictly Increasing Problem

Let's break down this LeetCode problem and understand what makes it challenging in interview settings.

Problem Statement

Given two integer arrays arr1 and arr2, return the minimum number of operations (possibly zero) needed to make arr1 strictly increasing. In one operation, you can choose two indices 0 <= i < arr1.length and 0 <= j < arr2.length and do the assignment arr1[i] = arr2[j]. If there is no way to make arr1 strictly increasing, return -1.

HardProblem #1290
LeetCode

Make Array Strictly Increasing

Related Topics
ArrayBinary SearchDynamic ProgrammingSorting
How Interview Coder Helps

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Examples

Example 1
INPUT
arr1 = [1,5,3,6,7], arr2 = [1,3,2,4]
OUTPUT
1
EXPLANATION

Replace 5 with 2, then arr1 = [1, 2, 3, 6, 7].

Example 2
INPUT
arr1 = [1,5,3,6,7], arr2 = [4,3,1]
OUTPUT
2
EXPLANATION

Replace 5 with 3 and then replace 3 with 4. arr1 = [1, 3, 4, 6, 7].

Example 3
INPUT
arr1 = [1,5,3,6,7], arr2 = [1,6,3,3]
OUTPUT
-1
EXPLANATION

You can't make arr1 strictly increasing.

Constraints

1 <= arr1.length, arr2.length <= 2000
0 <= arr1[i], arr2[i] <= 10^9

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