Given a non-negative integer c, your task is to decide whether there’re two integers a and b such that a2 + b2 = c.
Example 1:
Input: 5 Output: True Explanation: 1 * 1 + 2 * 2 = 5
Example 2:
Input: 3 Output: False
class Solution { public boolean judgeSquareSum(int c) { if(c == 1) return true; for(int i=0;i<=Math.sqrt(c);i++){ if (Math.floor(Math.sqrt(c-i*i)) == Math.sqrt(c-i*i)) return true; } return false; } } This siteOriginal articleAll follow "Attribution-NonCommercial-ShareAlike 4.0 License (CC BY-NC-SA 4.0)Please retain the following annotations when sharing or adapting:
Original author:Jake Tao,source:「633. Sum of Square Numbers」
