added 3 new files

eighteen.py

@@ -0,0 +1,24 @@
+user_input = int(input('hpw many test cases : '))
+for i in range(user_input):
+    operation = input('please enter operation string')
+    operation_list = operation.split()
+    print(operation_list)
+    if operation_list[0] == 'add':
+       first_number = int(operation_list[1])
+       second_number = int(operation_list[2])
+       print(first_number + second_number)
+    elif operation_list[0] == 'sub':
+         first_number = int(operation_list[1])
+         second_number = int(operation_list[2])
+         print(first_number - second_number)
+    elif operation_list[0] == 'mul':
+         first_number = int(operation_list[1])
+         second_number = int(operation_list[2])
+         print(first_number * second_number)   
+    elif operation_list[0] == 'div': 
+         first_number = int(operation_list[1])
+         second_number = int(operation_list[2])
+         print(first_number / second_number)      
+
+
+

today.py

@@ -0,0 +1,20 @@
+no_of_elem = int(input())
+map_={
+  'int':[],
+  'str':[],
+  'float':[],
+
+}
+
+for i in range(no_of_elem):
+  dt = input('enter data type: ')
+  value=input('enter value for above data type: ')
+  if dt =='str':
+    map_['str'].append(value)
+  elif dt == 'int':
+    map_['int'].append(int(value))
+  elif dt == 'float':
+    map_['float'].append(float(value))
+  else:
+    print('please initialize a empty list for {dt}'.format(dt))
+print(map_)

tut.py

@@ -92,26 +92,7 @@
 #     lst.append(num)
 # print(lst)
 #/ take n*2 input from user in 2,2 sets
-no_of_elem = int(input())
-map_={
-  'int':[],
-  'str':[],
-  'float':[],
-
-}
 
-for i in range(no_of_elem):
-  dt = input('enter data type: ')
-  value=input('enter value for above data type: ')
-  if dt =='str':
-    map_['str'].append(value)
-  elif dt == 'int':
-    map_['int'].append(int(value))
-  elif dt == 'float':
-    map_['float'].append(float(value))
-  else:
-    print('please initialize a empty list for {dt}'.format(dt))
-print(map_)
 
 
 

twoeighteen.py

@@ -0,0 +1,16 @@
+#only add and subtract input dikhega(add 4 5 100 20   )
+user_input = int(input('how many numbers : '))
+sum = 0
+mul = 1
+for i in range(user_input):
+    operation = input('please enter operation string')
+    operation_list = operation.split()
+    print(operation_list)
+    if operation_list[0] == 'add':
+        for j in range(1,len(operation_list)):
+            sum = int(sum) + int(operation_list[j])
+        print(sum)   
+    if operation_list[0] == 'mul':
+        for j in range(1,len(operation_list)):
+            mul = int(mul) * int(operation_list[j])
+        print(mul)