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	`1`	`+using System;`
	`2`	`+using System.Collections.Generic;`
	`3`	`+using System.Linq;`
	`4`	`+using System.Text;`
	`5`	`+using System.Threading.Tasks;`
	`6`	`+`
	`7`	`+namespace Leetcode231_PowerOfTwo`
	`8`	`+{`
	`9`	`+ /// <summary>`
	`10`	`+ /// Leetcode 231: Power of two`
	`11`	`+ /// https://leetcode.com/problems/power-of-two/description/`
	`12`	`+ /// </summary>`
	`13`	`+ class Program`
	`14`	`+ {`
	`15`	`+ static void Main(string[] args)`
	`16`	`+ {`
	`17`	`+ }`
	`18`	`+`
	`19`	`+ /// <summary>`
	`20`	`+ /// 0 - false`
	`21`	`+ /// 1 - true`
	`22`	`+ /// 2 - true`
	`23`	`+ /// 3 - false`
	`24`	`+ /// 4 - true`
	`25`	`+ /// </summary>`
	`26`	`+ /// <param name="n"></param>`
	`27`	`+ /// <returns></returns>`
	`28`	`+ public bool IsPowerOfTwo(int n)`
	`29`	`+ {`
	`30`	`+ if( n <= 0 )`
	`31`	`+ return false;`
	`32`	`+`
	`33`	`+ if( n == 1 )`
	`34`	`+ return true;`
	`35`	`+`
	`36`	`+ if (n % 2 == 1)`
	`37`	`+ return false;`
	`38`	`+`
	`39`	`+ return IsPowerOfTwo(n / 2);`
	`40`	`+ }`
	`41`	`+ }`
	`42`	`+}`

Lines changed: 42 additions & 0 deletions

Original file line number	Diff line number	Diff line change
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	`1`	`+using System;`
	`2`	`+using System.Collections.Generic;`
	`3`	`+using System.Linq;`
	`4`	`+using System.Text;`
	`5`	`+using System.Threading.Tasks;`
	`6`	`+`
	`7`	`+namespace Leetcode231_PowerOfTwo`
	`8`	`+{`
	`9`	`+ /// <summary>`
	`10`	`+ /// Leetcode 231: Power of two`
	`11`	`+ /// https://leetcode.com/problems/power-of-two/description/`
	`12`	`+ /// </summary>`
	`13`	`+ class Program`
	`14`	`+ {`
	`15`	`+ static void Main(string[] args)`
	`16`	`+ {`
	`17`	`+ }`
	`18`	`+`
	`19`	`+ /// <summary>`
	`20`	`+ /// 0 - false`
	`21`	`+ /// 1 - true`
	`22`	`+ /// 2 - true`
	`23`	`+ /// 3 - false`
	`24`	`+ /// 4 - true`
	`25`	`+ /// </summary>`
	`26`	`+ /// <param name="n"></param>`
	`27`	`+ /// <returns></returns>`
	`28`	`+ public bool IsPowerOfTwo(int n)`
	`29`	`+ {`
	`30`	`+ if( n <= 0 )`
	`31`	`+ return false;`
	`32`	`+`
	`33`	`+ if( n == 1 )`
	`34`	`+ return true;`
	`35`	`+`
	`36`	`+ if (n % 2 == 1)`
	`37`	`+ return false;`
	`38`	`+`
	`39`	`+ return IsPowerOfTwo(n / 2);`
	`40`	`+ }`
	`41`	`+ }`
	`42`	`+}`

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