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微软Code Hunt答案(00-05)——沉迷娱乐的我

         昨天看到微软出的网游Code Hunt,导师也去北京开云计算会议了。o(∩_∩)o...哈哈,还不好好玩一吧,个人感觉不是一个模块比一个模块难的,Code Hunt是按功能划分。所以不要怕自己做不来,因为不同人特长不一样。像ACM都是分工合作的啦。废话不多,我们来总结一下前01-04的答案。希望对大家有帮助,纯属娱乐。还有很多可以优化的地方,欢迎一起来讨论!

         注:语言C# 网页地址:https://www.codehunt.com/

     

chapter 00

00.02

using System;
public class Program {
    public static int Puzzle(int x) {
        return x+1;
    }
}

00.03

using System;
public class Program {
    public static int Puzzle(int x) {
        return 2*x;
    }
}

00.04

public class Program {
    public static int Puzzle(int x, int y) {
        return x+y;
    }
}

chapter 01

01.01

using System;
public class Program {
    public static int Puzzle(int x) {
        return (-1)*x;
    }
}

01.02

using System;
public class Program {
    public static int Puzzle(int x) {
        return x-2;
    }
}

01.03

using System;
public class Program {
    public static int Puzzle(int x) {
        return x*x;
    }
}

01.04

using System;
public class Program {
    public static int Puzzle(int x) {
        return 3*x;
    }
}

01.05

using System;
public class Program {
    public static int Puzzle(int x) {
        return x/3;
    }
}

01.06

using System;
public class Program {
    public static int Puzzle(int x) {
        return 4/x;
    }
}

01.07

using System;
public class Program {
    public static int Puzzle(int x, int y) {
        return x-y;
    }
}

01.08

using System;
public class Program {
    public static int Puzzle(int x, int y) { 
        return x+2*y;
    }
}

01.09

using System;
public class Program {
    public static int Puzzle(int x, int y) {
        return x*y;
    }
}

01.10

public class Program {
    public static int Puzzle(int x, int y) {
        return x + y / 3;
    }
}

01.11

using System;
public class Program {
    public static int Puzzle(int x, int y) {
        return (Math.Abs(x)>=Math.Abs(y)&&y!=0)?x/y:0;
    }

}

01.12

using System;
public class Program {
    public static int Puzzle(int x) {
        return x%3;
    }
}

01.13

using System;
public class Program {
    public static int Puzzle(int x) {
        return x%3+1;
    }
}

01.14

using System;
public class Program {
    public static int Puzzle(int x) {
        return 10%x;
    }
}

01.15

using System;
public class Program {
    public static int Puzzle(int x, int y, int z) {
        return (x+y+z)/3;
    }
}

chapter 02

02.01

using System;
using System.Linq;
public class Program {
    public static int[] Puzzle(int n) {
        return Enumerable.Range(0, n).ToArray();
    }
}

02.02

using System;
using System.Linq;
public class Program {
    public static int[] Puzzle(int n) {
        return Enumerable.Range(0, n).Select(x => x * n).ToArray();
    }
}

02.03

using System;
using System.Linq;
public class Program {
    public static int[] Puzzle(int n) {
        return Enumerable.Range(0, n).Select(x => x * n).ToArray();
    }
}

02.04

using System;
public class Program {
    public static int Puzzle(int[] v) {
        int sum = 0;
        foreach (int e in v) {
            sum += e;
        }
        return sum;
    }
}

02.05

using System;
public class Program {
    public static int Puzzle(int n) {
        return (n-1)*(n)*(2*n-1)/6;
    }
}

02.06

using System;
using System.Linq;
public class Program {
    public static int Puzzle(string s) {
        return s.Length - s.Replace("a", "").Length;
    }
}

02.07

using System;
using System.Linq;
public class Program {
    public static int Puzzle(string s, char x) {
        return s.Length - s.Replace(""+x, "").Length;
    }
}

chapter 03

03.01

using System;
public class Program {
    public static int Puzzle(int a, int x) {    
        int b = 1;
        for (; x>0; x/=2, a*=a)
            if (x % 2 == 1) b *= a;
        return b;
    }
}

03.02

using System;
public class Program {
    public static int Puzzle(int i) {
        return (i == 0)? 1: i * Puzzle(i-1);
    }
}

03.03

using System;
public class Program {
    public static int Puzzle(int lowerBound, int upperBound) {
        int product = 1;
        for (int i = lowerBound; i <= upperBound; ++i) {
            product *= i;
        }
        return product;
    }
}

03.04

using System;
public class Program {
    public static int Puzzle(int n) {
        return (n <= 0)? 0: (n+1) / 2 * ((n + 1) / 2 - 1);
    }
}

03.05

using System;
public class Program {
    public static int Puzzle(int n) {
        return n*(n+1)*(n+2)/6;
    }
}

03.06

using System;
using System.Linq;
public class Program {
    public static string Puzzle(string word) {
        return string.Join(" ", (new string(‘_‘, word.Length)).AsEnumerable());;
    }
}

03.07

using System;
using System.Linq;
public class Program {
    public static string Puzzle(string s) {
        return string.Join("", 
            s.Select(
                c => (char)((c > 117)? (c - 21): (c + 5))
            )
        );
    }
}

03.08

using System;
public class Program {
    public static int Puzzle(int x) {
        string s = "";
        s += x;
        return s.Length;
    }
}

chapter 04

04.01

using System;
public class Program {
    public static bool Puzzle(bool x, bool y) {
        return x || y;
    }
}

04.02

using System;
public class Program {
    public static bool Puzzle(bool x, bool y) {
        return x && y;
    }
}

04.03

using System;
public class Program {
    public static bool Puzzle(int x) {
         return x<50;
    }
}

04.04

using System;
public class Program {
    public static bool Puzzle(int x, int y) {
        return x<y;
    }
}

04.05

using System;
public class Program {
    public static int Puzzle(int i) {
        return (i == 0)? 0: Math.Abs(i)/i;
    }
}

04.06

using System;
public class Program {
    public static bool Puzzle(int i, int j) {
        return false;
    }
}

04.07

using System;
public class Program {
    public static int Puzzle(int i) {
        return (i < 100)? 2: 3;
    }
}

04.08

using System;
public class Program {
    public static string Puzzle(int i) {
        return (i % 2 == 0)? "even": "odd";
    }
}

04.09

using System;
public class Program {
    public static string Puzzle(int i) {
        return ((i % 5 == 0)? "": "not a ") + "multiple of 5";
    }
}

04.10

using System;
public class Program {
    public static string Puzzle(int i, int x) {
        return ((i % x == 0)? "": "not a ") + ("multiple of " + x);
    }
}

04.11

using System;
public class Program {
    public static string Puzzle(int i, int j, int k) {
        if (i / (double)j == j / (double)k && (i!=j)) return "yes!";
        return "no";;
    }
}

04.12

using System;
public class Program {
    public static int Puzzle(int i) {
        if (i < 8) return 0;
        if (i < 15) return 7;
        return 21;
    }
}

chapter 05

05.01

using System;
public class Program {
    public static string Puzzle(string s) {
if(s.Length<4){
return "short";
}else if(s.Length<8){
return "average";
}else if(s.Length<15){
return "long";
}else{
return "super long";
}
    }
}

05.02

using System;
public class Program {
    public static string Puzzle(int i) {
if(i>1000&&i<10000){
int test=i%10;i=i/10;
while(i>0&&test==i%10){
test=i%10;
i=i/10;
}
}
if(i==0){
return "fancy year";
}else{
return "not a fancy year";
}     
    }
}

05.03

using System;
public class Program {
    public static bool Puzzle(int a, int b, int c) {         
return (Math.Pow(Math.Min(a,b),2)==(Math.Max(a,b)+c)*(Math.Abs(c-Math.Max(a,b))))?true:false;
    }
}

05.04

using System;
public class Program {
    public static int Puzzle(int x, int y) {
        return Math.Abs(x)+Math.Abs(y);
    }
}

05.05

using System;
public class Program {
static int gcd(int m, int n)
  {
if(m%n!=0){
return gcd(n,m%n);
}else{
return n;
}
  }
    public static bool Puzzle(int i, int j) {
        if(gcd(i,j)!=1){
                return true;
        }
        else{
                return false;
        }
    }
}