using System;

using System.Collections.Generic;

public class Program

{

    //Enter Parameters Here

    public static void Main()

    {

        //Note:  Strength/Health

        var army1 = "1/1";

        var army2 = "1/2";

        var a1 = Army.fromString(army1);

        var a2 = Army.fromString(army2);

        var sim = new BattleSimulator(a1, a2);

        sim.battle(10000);

    }   

    //Actual Code Here:

    enum Outcome{

        win,

        loss,

        tie

    }

    class BattleSimulator{

        private readonly Army army1;

        private readonly Army army2;

        public BattleSimulator(Army army1, Army army2){

            this.army1 = army1;

            this.army2 = army2;

        }

        public Outcome battle(){

            var copy1 = army1.makeCopy();

            var copy2 = army2.makeCopy();

            while(copy1.fight(copy2)){

            }

            if(copy1.isDefeated && copy2.isDefeated){

                return Outcome.tie;

            }

            if(copy1.isDefeated && !copy2.isDefeated){

                return Outcome.loss;

            }

            return Outcome.win;

        }

        public void battle(int itterations){

            int tie = 0;

            int win = 0;

            int loss = 0;

            for(int i=0; i<itterations; i++){

                var outcome = battle();

                if(outcome == Outcome.tie){

                    tie++;

                }

                if(outcome == Outcome.win){

                    win++;

                }

                if(outcome == Outcome.loss)

                {

                    loss++;

                }

            }

            var winPercent = win*100f/(itterations*1.0f);

            var tiePercent = tie*100f/(itterations*1.0f);

            var lossPercent = loss*100f/(itterations*1.0f);

            Console.WriteLine($"Army1, {itterations} battles:");

            Console.WriteLine($"Win:  {win} ({winPercent}%)");

            Console.WriteLine($"Tie:  {tie} ({tiePercent}%)");

            Console.WriteLine($"Loss: {loss} ({lossPercent}%)");

        }

    }   

    class Dude{

        public int strength;

        public int health;

        public Dude(int strength, int health){

            this.strength = strength;

            this.health = health;

        }

        public string toString(){

            return $"{strength}/{health}";

        }

    }

​

    class Army{

        private List<Dude> dudes = new List<Dude>();

        private Random randomSource = new Random();

        public bool isDefeated => dudes.Count == 0;

        public static Army fromString(string army){

            var toReturn = new Army();

            //Assume 1/3 , 1/5, etc to specify dudes strenght/health

            var items = army.Split(',');

            foreach(var dude in items){

                var dudeNoWhiteSpace = dude.Trim();

                var raw = dude.Split('/');

                toReturn.dudes.Add(new Dude(Int32.Parse(raw[0]), Int32.Parse(raw[1])));

            }

            return toReturn;

        }

        public Army makeCopy(){

            var toReturn = new Army();

            foreach(var dude in dudes){

                toReturn.dudes.Add(dude);

            }

            return toReturn;

        }

        public string toString(){

            var sb = new List<string>();

            foreach(var dude in dudes){

                sb.Add(dude.toString());    

            }

            return String.Join(" ,  ", sb);

        }

        //returns false when there are no more battles to fight.

        public bool fight(Army other){

            var myIndex = randomSource.Next(dudes.Count);

            var otherIndex = randomSource.Next(other.dudes.Count);

            //Console.WriteLine($"{dudes[myIndex].toString()} vs. {other.dudes[otherIndex].toString()}");

            //calculate damage:

            var myDamage = other.dudes[otherIndex].strength;

            var otherDamage = dudes[myIndex].strength;

            //Inflict damage:

            dudes[myIndex].health -= myDamage;

            other.dudes[otherIndex].health -= otherDamage;

            //Kill dude if needed:

            if(dudes[myIndex].health <= 1){

                dudes.RemoveAt(myIndex);

            }

            if(other.dudes[otherIndex].health <= 0){

                other.dudes.RemoveAt(otherIndex);

            }

            //Any more battles to fight?

            if(isDefeated || other.isDefeated){

                return false;

            }

            return true;

        }

    }

}