598. Range Addition II
Easy
10 Points
Array
Math
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.
Examples
Example 1
Input: m = 3, n = 3, ops = [[2,2],[3,3]]
Output: 4
Explanation: The maximum integer in M is 2, and there are four of it in M. So return 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 * 1040 <= ops.length <= 104ops[i].length == 21 <= ai <= m1 <= bi <= n
598. Range Addition II
Easy
10 Points
Array
Math
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.
Examples
Example 1
Input: m = 3, n = 3, ops = [[2,2],[3,3]]
Output: 4
Explanation: The maximum integer in M is 2, and there are four of it in M. So return 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 * 1040 <= ops.length <= 104ops[i].length == 21 <= ai <= m1 <= bi <= n