diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000..d0383c6
Binary files /dev/null and b/.DS_Store differ
diff --git a/contenedor.playground/Contents.swift b/contenedor.playground/Contents.swift
new file mode 100644
index 0000000..fc87b60
--- /dev/null
+++ b/contenedor.playground/Contents.swift
@@ -0,0 +1,35 @@
+import Foundation
+
+func contenedorAgua(arreglo:[Int])->Int{
+    var inicio = 0
+    var fin = arreglo.count - 1
+    var suma = 0
+    var dif: Int
+    
+    while inicio != fin {
+        let punteroMenor = arreglo[inicio] < arreglo[fin] ? inicio : fin
+        if punteroMenor == fin {
+            fin -= 1
+            dif = arreglo[punteroMenor] - arreglo[fin]
+            while dif >= 0 {
+                suma += dif
+                fin -= 1
+                dif = arreglo[punteroMenor] - arreglo[fin]
+            }
+        } else {
+            inicio += 1
+            dif = arreglo[punteroMenor] - arreglo[inicio]
+            while dif >= 0 {
+                suma += dif
+                inicio += 1
+                dif = arreglo[punteroMenor] - arreglo[inicio]
+            }
+        }
+    }
+    
+    return suma
+}
+
+print(contenedorAgua(arreglo: [4, 0, 3, 6, 1, 3]))
+print(contenedorAgua(arreglo: [4,2,5,6,3,2,3]))
+print(contenedorAgua(arreglo: [4,0,6,2,3]))
diff --git a/contenedor.playground/contents.xcplayground b/contenedor.playground/contents.xcplayground
new file mode 100644
index 0000000..cf026f2
--- /dev/null
+++ b/contenedor.playground/contents.xcplayground
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<playground version='5.0' target-platform='ios' buildActiveScheme='true' importAppTypes='true'>
+    <timeline fileName='timeline.xctimeline'/>
+</playground>
\ No newline at end of file
diff --git a/robot.playground/Contents.swift b/robot.playground/Contents.swift
new file mode 100644
index 0000000..2db6f12
--- /dev/null
+++ b/robot.playground/Contents.swift
@@ -0,0 +1,64 @@
+import Foundation
+
+func girar(direccion: String) ->String {
+    var d = ""
+    
+    switch direccion {
+        case "N":
+            d = "O"
+        case "S":
+            d = "E"
+        case "E":
+            d = "N"
+        case "O":
+            d = "S"
+        default:
+            print("Dirección incorrecta")
+    }
+    
+    return d
+}
+
+func avanzar(x: Int, y: Int, dato: Int, direccion: String) -> [Int] {
+    var xx = x
+    var yy = y
+    switch direccion {
+        case "N":
+            yy += dato
+        case "S":
+            yy -= dato
+        case "E":
+            xx += dato
+        case "O":
+            xx -= dato
+        default:
+            print("Dirección incorrecta...")
+    }
+    
+    return [xx,yy]
+}
+
+func dondeEsRobot(arreglo:[Int]) -> [Int] {
+    var d =  "E"
+    var x = 0
+    var y = 0
+    var coordenadas: [Int]
+    for dato in arreglo {
+        if dato < 0 {
+            d = girar(direccion: d)
+            d = girar(direccion: d)
+            d = girar(direccion: d)
+        } else {
+            d = girar(direccion: d)
+        }
+        //print(d)
+        coordenadas = avanzar(x: x, y: y, dato: abs(dato), direccion: d)
+        x = coordenadas[0]
+        y = coordenadas[1]
+    }
+    
+    return [x,y]
+}
+
+print(dondeEsRobot(arreglo: [10,5,-2]))
+print(dondeEsRobot(arreglo: [-2,3,-1,4]))
diff --git a/robot.playground/contents.xcplayground b/robot.playground/contents.xcplayground
new file mode 100644
index 0000000..cf026f2
--- /dev/null
+++ b/robot.playground/contents.xcplayground
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<playground version='5.0' target-platform='ios' buildActiveScheme='true' importAppTypes='true'>
+    <timeline fileName='timeline.xctimeline'/>
+</playground>
\ No newline at end of file