diff --git a/exercises/es1.c b/exercises/es1.c
new file mode 100755
index 00000000..4731818b
--- /dev/null
+++ b/exercises/es1.c
@@ -0,0 +1,42 @@
+#include <stdio.h>
+
+int main(){
+    int week;
+    printf("Enter week number(1-7): \n");
+    scanf("%d",&week);
+
+    switch (week){
+        case 1:
+            printf("Monday");
+            break;
+
+        case 2:
+            printf("Tuesday");
+            break;
+
+        case 3:
+            printf("Wednesday");
+            break;
+
+        case 4:
+            printf("Thursday");
+            break;
+
+        case 5:
+            printf("Friday");
+            break;
+
+        case 6:
+            printf("Saturday");
+            break;
+
+        case 7:
+            printf("Sunday");
+            break;
+
+            
+        default:
+                printf("Error");
+            break;
+    }   
+}
\ No newline at end of file
diff --git a/exercises/es1.cpp b/exercises/es1.cpp
new file mode 100755
index 00000000..563ff86b
--- /dev/null
+++ b/exercises/es1.cpp
@@ -0,0 +1,47 @@
+/* Improve this program using a switch-case. */
+
+using namespace std;
+
+int main()
+{
+  int week;
+
+  /* Input week number from user */
+  cout << "Enter week number(1-7): " << endl;
+  cin >> week;
+
+  if (week == 1)
+  {
+    cout << "Monday" << endl;
+  }
+  else if (week == 2)
+  {
+    cout << "Tuesday" << endl;
+  }
+  else if (week == 3)
+  {
+    cout << "Wednesday" << endl;
+  }
+  else if (week == 4)
+  {
+    cout << "Thursday" << endl;
+  }
+  else if (week == 5)
+  {
+    cout << "Friday" << endl;
+  }
+  else if (week == 6)
+  {
+    cout << "Saturday" << endl;
+  }
+  else if (week == 7)
+  {
+    cout << "Sunday" << endl;
+  }
+  else
+  {
+    cout << "Invalid input! Please enter week number between 1-7." << endl;
+  }
+
+  return 0;
+}
\ No newline at end of file