Computer Science

Predict the output of the following code fragments:

x = 10                     
y = 5                     
for i in range(x-y * 2):  
    print (" % ", i)

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This code generates No Output.

The x-y * 2 in range(x-y * 2) is evaluated as below:

x - y * 2
⇒ 10 - 5 * 2
⇒ 10 - 10 [∵ * has higher precedence than -]
⇒ 0

Thus range(x-y * 2) is equivalent to range(0) which returns an empty sequence — [ ].

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for x in [1,2,3]:
    for y in [4, 5, 6]:
        print (x, y)

for x in range(3):        
    for y in range(4):    
       print (x, y, x + y)