Practice Range Addition II
Read the task, work through the examples, and check your approach against the constraints. Use the original LeetCode task for coding and submissions.
Problem Statement
You are given an m x n matrix M initialized with all 0's and an array of operations ops, where ops[i] = [ai, bi] means M[x][y] should be incremented by one for all 0 <= x < ai and 0 <= y < bi. Count and return the number of maximum integers in the matrix after performing all the operations.
Source: Range Addition II on LeetCode. Use the original task for its coding environment and submissions.
Examples
# Example 1
Input
m = 3, n = 3, ops = [[2,2],[3,3]]
Output
4
# Example 2
Input
m = 3, n = 3, ops = [[2,2],[3,3],[3,3],[3,3],[2,2],[3,3],[3,3],[3,3],[2,2],[3,3],[3,3],[3,3]]
Output
4
# Example 3
Input
m = 3, n = 3, ops = []
Output
9
Constraints
1 <= m, n <= 4 * 10^4
0 <= ops.length <= 10^4
ops[i].length == 2
1 <= ai <= m
1 <= bi <= n
Related LeetCode Problems
Practice more problems similar to Range Addition II.
Review your practice with PhantomCodeAI
After trying the problem yourself, use the app to discuss your approach, complexity, and edge cases.