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1523. Count Odd Numbers in an Interval Range

Description

Given two non-negative integers low and high. Return the count of odd numbers between low and high (inclusive).

 

Example 1:

Input: low = 3, high = 7
Output: 3
Explanation: The odd numbers between 3 and 7 are [3,5,7].

Example 2:

Input: low = 8, high = 10
Output: 1
Explanation: The odd numbers between 8 and 10 are [9].

 

Constraints:

• 0 <= low <= high <= 10^9

Solutions

• Java
• C++
• Python
• Go
• TypeScript
• Php
• RenderScript

• class Solution {
      public int countOdds(int low, int high) {
          return ((high + 1) >> 1) - (low >> 1);
      }
  }
  

• class Solution {
  public:
      int countOdds(int low, int high) {
          return (high + 1 >> 1) - (low >> 1);
      }
  };
  

• class Solution:
      def countOdds(self, low: int, high: int) -> int:
          return ((high + 1) >> 1) - (low >> 1)
  
  

• func countOdds(low int, high int) int {
  	return ((high + 1) >> 1) - (low >> 1)
  }
  

• function countOdds(low: number, high: number): number {
      return ((high + 1) >> 1) - (low >> 1);
  }
  
  

• class Solution {
      /**
       * @param Integer $low
       * @param Integer $high
       * @return Integer
       */
      function countOdds($low, $high) {
          return ($high + 1 >> 1) - ($low >> 1);
      }
  }
  
  

• impl Solution {
      pub fn count_odds(low: i32, high: i32) -> i32 {
          ((high + 1) >> 1) - (low >> 1)
      }
  }
  
  

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