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@@ -0,0 +1,90 @@
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+using System;
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+using System.Collections.Generic;
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+using System.IO;
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+using System.Linq;
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+
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+namespace D23._1
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+{
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+ public class Program
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+ {
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+ static void Main(string[] args)
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+ {
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+ int[] Registers = new int[5] {7, 0, 0, 0, 0 };
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+
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+ Work(args, Registers);
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+
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+ Console.WriteLine($"The answer is : {Registers[0]}");
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+ }
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+
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+ public static void Work(string[] args, int[] Registers)
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+ {
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+ List<string[]> instr = File.ReadAllText(args[0]).Split(new string[] { "\r\n", "\n" }, StringSplitOptions.RemoveEmptyEntries)
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+ .Select(n => n.Split(" ")).ToList();
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+
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+ var Ops = new Dictionary<string, Action<bool, bool, int, int>>()
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+ {
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+ { "cpy", (ia, ib, a, b) => {
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+ if (ib == false) return;
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+ Registers[b] = ia ? Registers[a] : a; }
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+ },
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+ { "inc", (ia, ib, a, b) => {
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+ if (ia == false) return;
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+ Registers[a]++; }
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+ },
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+ { "dec", (ia, ib, a, b) => {
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+ if (ia == false) return;
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+ Registers[a]--;
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+ } },
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+ { "jnz", (ia, ib, a, b) => { Registers[4] += (ia ? Registers[a] : a) != 0 ? (ib ? Registers[b] : b) - 1 : 0; } },
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+ { "tgl", (ia, ib, a, b) => {
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+ var ii = (ia ? Registers[a] : a) + Registers[4];
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+ if (ii >= instr.Count) return;
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+
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+ var ins = instr[ii];
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+
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+ if (ins.Length == 2)
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+ ins[0] = ins[0] == "inc" ? "dec" : "inc";
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+ else
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+ ins[0] = ins[0] == "jnz" ? "cpy" : "jnz";
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+
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+ instr[ii] = ins;
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+ } }
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+ };
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+
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+
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+
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+ for (; Registers[4] < instr.Count; Registers[4]++)
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+ {
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+ var i = instr[Registers[4]];
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+
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+ ParseLine(i, out int valuea, out int valueb, out bool isrega, out bool isregb);
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+
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+ Ops[i[0]](isrega, isregb, valuea, valueb);
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+ }
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+ }
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+
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+ private static void ParseLine(string[] i, out int valuea, out int valueb, out bool isrega, out bool isregb)
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+ {
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+ valuea = 0;
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+ valueb = 0;
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+ isrega = false;
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+ isregb = false;
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+ if (i[1][0] >= 'a')
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+ {
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+ valuea = i[1][0] - 'a';
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+ isrega = true;
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+ }
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+ else valuea = int.Parse(i[1]);
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+
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+ if (i.Length == 3)
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+ {
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+ if (i[2][0] >= 'a')
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+ {
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+ valueb = i[2][0] - 'a';
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+ isregb = true;
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+ }
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+ else valueb = int.Parse(i[2]);
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+ }
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+ }
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+ }
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+}
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bastien.monsarrat