require "Fraccion.rb"
require "Matriz.rb"
class Matriz_densa < Matriz

def + (other)
   aux_m = Array.new
   for i in 0...@filas do
      aux_m[i] = Array.new			
      for j in 0...@cols do			
         aux_m[i][j] = 0;
      end
   end
   if other.is_a?(Matriz_dispersa)
      for i in 0...@filas do			
         for j in 0...@cols do			
            if other.matriz[i.to_s+"_"+j.to_s] != nil
               aux_m[i][j] = @matriz[i][j] + other.matriz[i.to_s+"_"+j.to_s]
            else
               aux_m[i][j] = @matriz[i][j]
            end
         end
      end
   elsif other.is_a?(Matriz_densa)
      for i in 0...@filas do			
         for j in 0...@cols do			
            aux_m[i][j] = @matriz[i][j] + other.matriz[i][j]
         end
      end
   end 
   Matriz.new(aux_m).comprobar()
end

def - (other)
   aux_m = Array.new
   for i in 0...@filas do
      aux_m[i] = Array.new			
      for j in 0...@cols do			
         aux_m[i][j] = 0;
      end
   end 
   if other.is_a?(Matriz_dispersa)
      for i in 0...@filas do			
         for j in 0...@cols do			
            if other.matriz[i.to_s+"_"+j.to_s] != nil
               aux_m[i][j] = @matriz[i][j] - other.matriz[i.to_s+"_"+j.to_s]
            else
               aux_m[i][j] = @matriz[i][j]
            end
         end
      end
   elsif other.is_a?(Matriz_densa)
      for i in 0...@filas do			
         for j in 0...@cols do			
            aux_m[i][j] = @matriz[i][j] - other.matriz[i][j]
         end
      end
   end
   Matriz.new(aux_m).comprobar()
end

def * (other) 
   aux_m = Array.new
   for i in 0...@filas do
      aux_m[i] = Array.new			
      for j in 0...@cols do			
         aux_m[i][j] = 0;
      end
   end
   if other.is_a?(Matriz_dispersa) 
      for i in 0...@filas do			
         for j in 0...other.cols do			
            for k in 0...other.filas do
               if other.matriz[k.to_s+"_"+j.to_s] != nil	
                  aux_m[i][j] += @matriz[i][j] * other.matriz[k.to_s+"_"+j.to_s]
               end	
            end
         end
      end
   elsif other.is_a?(Matriz_densa)
      for i in 0...@filas do			
         for j in 0...other.cols do			
            for k in 0...other.filas do		
               aux_m[i][j] += @matriz[i][k] * other.matriz[k][j]	
            end
         end
      end
   end
   Matriz.new(aux_m).comprobar()
end

def max()

   aux_max = @matriz[0][0]

   for i in 0...@filas do			
      for j in 0...@cols do
         if aux_max < @matriz[i][j]
            aux_max = @matriz[i][j]
         end
      end
   end

   aux_max
end

def min()

   aux_min = @matriz[0][0]

   for i in 0...@filas do			
      for j in 0...@cols do
         if aux_min > @matriz[i][j]
            aux_min = @matriz[i][j]
         end
      end
   end

   aux_min
end

end