二进制和十进制【难度:0级】:

答案1:

using System; namespace Solution { public static class Program { public static int binToDec(string s) { return Convert.ToInt32(s, 2); } } }​

答案2:

using System; namespace Solution { public static class Program { public static int binToDec(string s) { return Convert.ToInt32(s, 2);; } } }​

答案3:

using System; namespace Solution { public static class Program { public static int binToDec(string s) { return Convert.ToInt32((s), 2); } } }​

答案4:

namespace Solution { using System; public static class Program { public static int binToDec( string s ) { return Convert.ToInt32( s, 2 ); } } }​

答案5:

using System; namespace Solution { public static class Program { public static int binToDec(string s) { return (Convert.ToInt32(s, 2)); } } }​

答案6:

using System; namespace Solution { public static class Program { public static int binToDec(string s) => Convert.ToInt32(s, 2); } }​

答案7:

using System; namespace Solution { public static class Program { public static int binToDec(string s) => (Convert.ToInt32(s, 2)); } }​

答案8:

using System; namespace Solution { public static class Program { public static int binToDec(string s) { byte RADIX = 2; return Convert.ToInt32(s, RADIX); } } }​

答案9:

using System; namespace Solution { public static class Program { public static int binToDec(string s) { uint res = 0; var pos = 0; for(var i=0; i<s.Length; i++) { uint value = 0; switch(s[i]) { case '0': value = 0; break; case '1': value = 1; break; default: throw new Exception("334"); } res = res | (value << (s.Length - i - 1)); } return (int)res; } } }​

答案10:

using System; namespace Solution { public static class Program { public static int binToDec(string s) { int temp = 0; return temp = Convert.ToInt32(s, 2); } } }​

答案11:

using System; using System.Linq; namespace Solution { public static class Program { public static int binToDec(string s) { int pow=0; return (int)s.Reverse().Sum(x => int.Parse(x.ToString()) * Math.Pow(2, pow++)); } } }​

答案12:

using System; namespace Solution { public static class Program { public static int binToDec(string input) { return Convert.ToInt32(input, 2); } } }​

答案13:

using System; using System.Linq; namespace Solution { public static class Program { public static int binToDec(string s) { char[] arr = s.ToCharArray(); Array.Reverse(arr); s = new string(arr); int res = 0; for (int i = 0; i < s.Length; i++) { if (s[i] == '1' ) { res += (int)Math.Pow(2, i); } } return res; } } }​

答案14:

using System; namespace Solution { public static class Program { public static int binToDec(string s) { String num = s; int dec_value = 0; int base1 = 1; int len = num.Length; for (int i = len - 1; i >= 0; i--) { if (num[i] == '1') dec_value += base1; base1 = base1 * 2; } return dec_value; } } } ​