C# Online Compiler | .NET Fiddle

<no name> by Anonymous

using System;
using System.Collections;
using System.Collections.Generic;
					
public class Program
{
	public static void Main()
	{
		int count = 0;
		Console.WriteLine ($"=== {++count} ===");
		Console.WriteLine ("  *  ");
		Console.WriteLine (" *** ");
		Console.WriteLine ("*****");
		
		Console.WriteLine ($"=== {++count} ===");
		string s1 = "ALL MEN ARE CREATED QEUAL";
		string s2;
		s2 = s1.Substring (12,3);
		Console.WriteLine (s2);
		
		Console.WriteLine ($"=== {++count} ===");
		s1 = "Kicit";
		Console.Write (s1.IndexOf('c') + " ");
		Console.WriteLine (s1.Length);
		
		Console.WriteLine ($"=== {++count} ===");
		Console.WriteLine ("A, C, D 什麼可變不可變，內容? 記憶體空間?");
		
		//5
		Console.WriteLine ($"=== {++count} ===");
		int x_i = 1;
		float x_f = 1.1f;
		short x_z = 1;
		Console.WriteLine ((float)x_i + x_f * x_z - (x_i += (short)x_f));
		
		//6
		Console.WriteLine ($"=== {++count} ===");
		short s1_6 = 20;
		short s2_6 = 400;
		int a_6;
		a_6 = s1_6 * s2_6;
		Console.WriteLine ("A");
		
		//7
		Console.WriteLine ($"=== {++count} ===");
		int x = 5;
		int y = 9;
		int z = 7;
		int max = x;
		max = (max > y) ? max : y;
		max = (max > z) ? max : z;
		
		Console.WriteLine (max);
		
		//8
		Console.WriteLine ($"=== {++count} ===");
		Console.WriteLine (x == y);
		
		// 9 
		Console.WriteLine ($"=== {++count} ===");
		Console.WriteLine (((x % 2) == 1) ? "奇數" : "偶數");
		
		// 10
		Console.WriteLine ($"=== {++count} ===");
		Console.WriteLine ((x >= 0) ? "正數" : "負數");
						   
		// 11
		Console.WriteLine ($"=== {++count} ===");
		Console.WriteLine ((x >= 0) ? x : x *= -1);
		
		// 12
		Console.WriteLine ($"=== {++count} ===");
		Console.WriteLine ((x >= 20) ? "可投票" : "不可投票");
		
		// 13
		Console.WriteLine ($"=== {++count} ===");
		float t = 5;
		Console.WriteLine ((t <= 0) ? "凍僵了" : (t <= 10) ? "很冷" : (t <= 20) ? "有點冷" : (t <= 30) ? "舒適" : (t <= 40) ? "熱" : "非常熱");
		
		// 14
		Console.WriteLine ($"=== {++count} ===");
		//台電夏日電價公式
		// 非營業用, 分7節
		int[] t1 = new int[] {120, 330, 500, 700, 1000, 9999};
		int[] t2 = new int[] {120, 210, 270, 200, 300, 9999};
		int[] t3 = new int[] {163, 238, 352, 480, 566, 641};
		
		x = 121; // input
		x = (x > 9999) ? 9999 : x;	// max 9999
		int money = 0;
		for (int i = 0; i < 6; ++i) {
			if (x > t2 [i]) {
				money += t2[i] * t3[i];
				x -= t2 [i];
			}
			else {
				money += x * t3 [i];
				x = 0;
			}
			// Console.WriteLine (x + " " + i + " " + money); // test 
		}
		Console.WriteLine (money / 100);
		
		
		// 15
		Console.WriteLine ($"=== {++count} ===");
		string[] daily = new string[] {"Monday", "Tuesday", "Wensday", "Forthday", "Friday", "Saturday", "Suday"};
		x = 6; // 1 - 7
		Console.WriteLine (daily[x - 1]);
		
		// 16
		Console.WriteLine ($"=== {++count} ===");
		int[] days = new int[] {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
		foreach (int dd in days) {
			Console.Write (dd + " ");
		}
		Console.WriteLine ();
		
		
		// 17
		Console.WriteLine ($"=== {++count} ===");
		x = 2;	// month // 1 ~ 12
		y = 2020; // yead
		int day = days[x - 1];

		if (x == 2) {
			if ((y % 400 == 0) || (y % 4 == 0) && (y % 100 != 0)) {
				day += 1;
			}
		}
		
		Console.WriteLine ("Years: " + y + " Month " + x + " days " + day );
		
		// 18
		Console.WriteLine ($"=== {++count} ===");
		for (int i = 0; i < 100; ++i) {
			Console.Write ( (i + 1) + " ");	
		}
		Console.WriteLine ();
		
		// 19
		Console.WriteLine ($"=== {++count} ===");
		for (int i = 0; i < 100; ++i) {
			if ((i + 1) % 2 == 1) {
				Console.Write ( (i + 1) + " ");	
			}
		}
		Console.WriteLine ();
		
		// 20
		Console.WriteLine ($"=== {++count} ===");
		for (int i = 0; i < 100; ++i) {
			if ((i + 1) % 2 == 0) {
				Console.Write ( (i + 1) + " ");	
			}
		}
		Console.WriteLine ();
		
		// 21
		Console.WriteLine ($"=== {++count} ===");
		x = 7;
		bool b_21 = false;
		int total_21 = 0;
		for (int i = 1; i < x; ++i) {
			if ((x % i) == 0) {
				total_21 += i;
			}
			if (total_21 == x)
				b_21 = true;
		}
		
		Console.WriteLine (b_21 ? "完全數" : "非完全數");
		
		Console.WriteLine ();
		
		// 22
		Console.WriteLine ($"=== {++count} ===");
		x = 10; // n
		int total_22 = 0;
		for (int i = 0; i < x; ++i) {
			total_22 += (i + 1);
		}
		Console.WriteLine (total_22);
		
		// 23
		Console.WriteLine ($"=== {++count} ===");
		x = 32;
		Console.Write ($"x = {x}, ");
		string total_s_23 = "";
		while (x != 0) {
			char dec = ((x % 2) > 0) ? '1' : '0';
			total_s_23 = $"{dec}{total_s_23}";
			x /= 2;
		}
		Console.WriteLine (total_s_23);
		
		// 24
		Console.WriteLine ($"=== {++count} ===");
		x = 1234567;
		Console.WriteLine (x);
		while (x != 0) {
			Console.Write (x % 10);
			x /= 10;
		}
		Console.WriteLine ();
		
		// 25
		Console.WriteLine ($"=== {++count} ===");
		Console.WriteLine ("No Read Line");
		// no read line
		
		
		// 26
		Console.WriteLine ($"=== {++count} ===");
		Dictionary <string, int> char_map = new Dictionary <string, int> ();
		string str_26 = "Hello World!";
		for (int i = 0; i < str_26.Length - 1; ++i) {
			string tmp_chr = str_26.Substring (i, 1);
			char_map.TryAdd (tmp_chr, 0);
			char_map [tmp_chr] += 1;
		}
		
		foreach (KeyValuePair <string, int> kvp in char_map) {
			Console.WriteLine ($"key={kvp.Key}, value={kvp.Value}");	
		}
		
		// 27
		Console.WriteLine ($"=== {++count} ===");
		for (int i = 1; i <= 9; ++i) {
			for (int j = 1; j <= 9; ++j) {
			
				Console.Write ($"{i}*{j}={i*j} ");
			}
			Console.WriteLine ("");
		}
	}
}

​x
 
using System;
using System.Collections;
using System.Collections.Generic;
                    
public class Program
{
    public static void Main()
    {
        int count = 0;
        Console.WriteLine ($"=== {++count} ===");
        Console.WriteLine ("  *  ");
        Console.WriteLine (" *** ");
        Console.WriteLine ("*****");
        
        Console.WriteLine ($"=== {++count} ===");
        string s1 = "ALL MEN ARE CREATED QEUAL";
        string s2;
        s2 = s1.Substring (12,3);
        Console.WriteLine (s2);
        
        Console.WriteLine ($"=== {++count} ===");
        s1 = "Kicit";
        Console.Write (s1.IndexOf('c') + " ");
        Console.WriteLine (s1.Length);
        
        Console.WriteLine ($"=== {++count} ===");
        Console.WriteLine ("A, C, D 什麼可變不可變，內容? 記憶體空間?");
        
        //5
        Console.WriteLine ($"=== {++count} ===");
        int x_i = 1;
        float x_f = 1.1f;
        short x_z = 1;
        Console.WriteLine ((float)x_i + x_f * x_z - (x_i += (short)x_f));
        
        //6
        Console.WriteLine ($"=== {++count} ===");
        short s1_6 = 20;
        short s2_6 = 400;
        int a_6;
        a_6 = s1_6 * s2_6;
        Console.WriteLine ("A");
        
        //7
        Console.WriteLine ($"=== {++count} ===");
        int x = 5;
        int y = 9;
        int z = 7;
        int max = x;
        max = (max > y) ? max : y;
        max = (max > z) ? max : z;
        
        Console.WriteLine (max);
        
        //8
        Console.WriteLine ($"=== {++count} ===");
        Console.WriteLine (x == y);
        
        // 9 
        Console.WriteLine ($"=== {++count} ===");
        Console.WriteLine (((x % 2) == 1) ? "奇數" : "偶數");
        
        // 10
        Console.WriteLine ($"=== {++count} ===");
        Console.WriteLine ((x >= 0) ? "正數" : "負數");
                           
        // 11
        Console.WriteLine ($"=== {++count} ===");
        Console.WriteLine ((x >= 0) ? x : x *= -1);
        
        // 12
        Console.WriteLine ($"=== {++count} ===");
        Console.WriteLine ((x >= 20) ? "可投票" : "不可投票");
        
        // 13
        Console.WriteLine ($"=== {++count} ===");
        float t = 5;
        Console.WriteLine ((t <= 0) ? "凍僵了" : (t <= 10) ? "很冷" : (t <= 20) ? "有點冷" : (t <= 30) ? "舒適" : (t <= 40) ? "熱" : "非常熱");
        
        // 14
        Console.WriteLine ($"=== {++count} ===");
        //台電夏日電價公式
        // 非營業用, 分7節
        int[] t1 = new int[] {120, 330, 500, 700, 1000, 9999};
        int[] t2 = new int[] {120, 210, 270, 200, 300, 9999};
        int[] t3 = new int[] {163, 238, 352, 480, 566, 641};
        
        x = 121; // input
        x = (x > 9999) ? 9999 : x;  // max 9999
        int money = 0;
        for (int i = 0; i < 6; ++i) {
            if (x > t2 [i]) {
                money += t2[i] * t3[i];
                x -= t2 [i];
            }
            else {
                money += x * t3 [i];
                x = 0;
            }
            // Console.WriteLine (x + " " + i + " " + money); // test 
        }
        Console.WriteLine (money / 100);
        
        
        // 15
        Console.WriteLine ($"=== {++count} ===");
        string[] daily = new string[] {"Monday", "Tuesday", "Wensday", "Forthday", "Friday", "Saturday", "Suday"};
        x = 6; // 1 - 7
        Console.WriteLine (daily[x - 1]);
        
        // 16
        Console.WriteLine ($"=== {++count} ===");
        int[] days = new int[] {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
        foreach (int dd in days) {
            Console.Write (dd + " ");
        }
        Console.WriteLine ();
        
        
        // 17
        Console.WriteLine ($"=== {++count} ===");
        x = 2;  // month // 1 ~ 12
        y = 2020; // yead
        int day = days[x - 1];
​
        if (x == 2) {
            if ((y % 400 == 0) || (y % 4 == 0) && (y % 100 != 0)) {
                day += 1;
            }
        }
        
        Console.WriteLine ("Years: " + y + " Month " + x + " days " + day );
        
        // 18
        Console.WriteLine ($"=== {++count} ===");
        for (int i = 0; i < 100; ++i) {
            Console.Write ( (i + 1) + " "); 
        }
        Console.WriteLine ();
        
        // 19
        Console.WriteLine ($"=== {++count} ===");
        for (int i = 0; i < 100; ++i) {
            if ((i + 1) % 2 == 1) {
                Console.Write ( (i + 1) + " "); 
            }
        }
        Console.WriteLine ();
        
        // 20
        Console.WriteLine ($"=== {++count} ===");
        for (int i = 0; i < 100; ++i) {
            if ((i + 1) % 2 == 0) {
                Console.Write ( (i + 1) + " "); 
            }
        }
        Console.WriteLine ();
        
        // 21
        Console.WriteLine ($"=== {++count} ===");
        x = 7;
        bool b_21 = false;
        int total_21 = 0;
        for (int i = 1; i < x; ++i) {
            if ((x % i) == 0) {
                total_21 += i;
            }
            if (total_21 == x)
                b_21 = true;
        }
        
        Console.WriteLine (b_21 ? "完全數" : "非完全數");
        
        Console.WriteLine ();
        
        // 22
        Console.WriteLine ($"=== {++count} ===");
        x = 10; // n
        int total_22 = 0;
        for (int i = 0; i < x; ++i) {
            total_22 += (i + 1);
        }
        Console.WriteLine (total_22);
        
        // 23
        Console.WriteLine ($"=== {++count} ===");
        x = 32;
        Console.Write ($"x = {x}, ");
        string total_s_23 = "";
        while (x != 0) {
            char dec = ((x % 2) > 0) ? '1' : '0';
            total_s_23 = $"{dec}{total_s_23}";
            x /= 2;
        }
        Console.WriteLine (total_s_23);
        
        // 24
        Console.WriteLine ($"=== {++count} ===");
        x = 1234567;
        Console.WriteLine (x);
        while (x != 0) {
            Console.Write (x % 10);
            x /= 10;
        }
        Console.WriteLine ();
        
        // 25
        Console.WriteLine ($"=== {++count} ===");
        Console.WriteLine ("No Read Line");
        // no read line
        
        
        // 26
        Console.WriteLine ($"=== {++count} ===");
        Dictionary <string, int> char_map = new Dictionary <string, int> ();
        string str_26 = "Hello World!";
        for (int i = 0; i < str_26.Length - 1; ++i) {
            string tmp_chr = str_26.Substring (i, 1);
            char_map.TryAdd (tmp_chr, 0);
            char_map [tmp_chr] += 1;
        }
        
        foreach (KeyValuePair <string, int> kvp in char_map) {
            Console.WriteLine ($"key={kvp.Key}, value={kvp.Value}");    
        }
        
        // 27
        Console.WriteLine ($"=== {++count} ===");
        for (int i = 1; i <= 9; ++i) {
            for (int j = 1; j <= 9; ++j) {
            
                Console.Write ($"{i}*{j}={i*j} ");
            }
            Console.WriteLine ("");
        }
    }
}

=== 1 ===
*
***
*****
=== 2 ===
CRE
=== 3 ===
2 5
=== 4 ===
A, C, D 什麼可變不可變，內容? 記憶體空間?
=== 5 ===
0.099999905
=== 6 ===
A
=== 7 ===
9
=== 8 ===
False
=== 9 ===
奇數
=== 10 ===
正數
=== 11 ===
5
=== 12 ===
不可投票
=== 13 ===
很冷
=== 14 ===
197
=== 15 ===
Saturday
=== 16 ===
31 28 31 30 31 30 31 31 30 31 30 31
=== 17 ===
Years: 2020 Month 2 days 29
=== 18 ===
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
=== 19 ===
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87 89 91 93 95 97 99
=== 20 ===
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 100
=== 21 ===
非完全數

=== 22 ===
55
=== 23 ===
x = 32, 100000
=== 24 ===
1234567
7654321
=== 25 ===
No Read Line
=== 26 ===
key=H, value=1
key=e, value=1
key=l, value=3
key=o, value=2
key= , value=1
key=W, value=1
key=r, value=1
key=d, value=1
=== 27 ===
1*1=1 1*2=2 1*3=3 1*4=4 1*5=5 1*6=6 1*7=7 1*8=8 1*9=9
2*1=2 2*2=4 2*3=6 2*4=8 2*5=10 2*6=12 2*7=14 2*8=16 2*9=18
3*1=3 3*2=6 3*3=9 3*4=12 3*5=15 3*6=18 3*7=21 3*8=24 3*9=27
4*1=4 4*2=8 4*3=12 4*4=16 4*5=20 4*6=24 4*7=28 4*8=32 4*9=36
5*1=5 5*2=10 5*3=15 5*4=20 5*5=25 5*6=30 5*7=35 5*8=40 5*9=45
6*1=6 6*2=12 6*3=18 6*4=24 6*5=30 6*6=36 6*7=42 6*8=48 6*9=54
7*1=7 7*2=14 7*3=21 7*4=28 7*5=35 7*6=42 7*7=49 7*8=56 7*9=63
8*1=8 8*2=16 8*3=24 8*4=32 8*5=40 8*6=48 8*7=56 8*8=64 8*9=72
9*1=9 9*2=18 9*3=27 9*4=36 9*5=45 9*6=54 9*7=63 9*8=72 9*9=81

Last Run:	8:15:51 pm
Compile:	0.034s
Execute:	0.07s
Memory:	3.72Mb
CPU:	0.104s

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