Program 61 – Exchanging Values
variable_1 = 1 variable_2 = 2 variable_1, variable_2 = variable_2, variable_1
OR
variable_1 = “Good”
variable_2 = “job”
variable_1, variable_2 = variable_2, variable_1
print(variable_1,variable_2)
variable_1, variable_2 = variable_2, variable_1
print(variable_1,variable_2)
FOR LONG LISTS
my_list = [10, 1, 8, 3, 5, 7, 34, 4, 76]
length = len(my_list)
for i in range(length // 2):
my_list[i], my_list[length – i – 1] = my_list[length – i – 1], my_list[i]
print(my_list)
length = len(my_list)
for i in range(length // 2):
my_list[i], my_list[length – i – 1] = my_list[length – i – 1], my_list[i]
print(my_list)
Program 62 – Finding a Value in a List
Now let's find the location of a given element inside a list:
my_list = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
to_find = 5
found = False
for i in range(len(my_list)):
found = my_list[i] == to_find
if found:
break
if found:
print("Element found at index", i)
else:
print("absent")
Program 63 -Is this number prime?
def is_prime(num):
if num < 2:
return False
for i in range(2, int(num ** 0.5) + 1):
if num % i == 0:
return False
return True
for i in range(1, 61):
if is_prime(i):
print(i)
Program 64 –
Program 65 –
Program 66 –
Program 67 –
Program 68 –
Program 69 –
Program 70 –