标签：std square bool static turn color perfect bsp ==
n*n=1+2+3+...+(2n-1)
1 static int wing=[]() 2 { 3 std::ios::sync_with_stdio(false); 4 cin.tie(NULL); 5 return 0; 6 }(); 7 8 class Solution 9 { 10 public: 11 bool isPerfectSquare(int num) 12 { 13 for(int i=1;num>0;i+=2) 14 num-=i; 15 return num==0; 16 } 17 };
标签：std square bool static turn color perfect bsp ==
原文地址：https://www.cnblogs.com/zhuangbijingdeboke/p/9093172.html
