Int x=4; Int y=2; Cout<<x++*y--; | Sololearn: Learn to code for FREE!

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# Int x=4; Int y=2; Cout<<x++*y--;

Can anyone tell me output of this code with explanation . I'm trying to understand but still confusing in question

2/1/2020 1:13:19 AM

@Manoj.Codes

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x++: Increases x by 1, but returns the original value 4. y--: Decreases y by 1, but returns the original value 2. x++*y-- = 4*2 = 8

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++x: Increases x by 1 and returns the new value 5. --y: Decreases y by 1 and returns the new value 1. ++x*--y = 5*1 = 5

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Ok got it thank you sir

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Ohk my mistake 😅

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As both x and y are post incremented or decremented , so the value assigned first and then gets incremented or decremented, so in cout statement value of x (i.e. 4) and y (i.e. 2) is used and then gets incremented and decremented respectively, hence results in 8.

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2*4=8

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8 since it is postfix,use the original values before u increment x and decrement y .

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8 as you use post increment

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First you multiply 2 and 4 and print 8 The reason: In c++ it does the prefix then the math then the postfix so in this case it did the math then the postfix so if you tried to print out x value after that it will give you 5 and if you did the same for y it will give you 1.

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4*2=8. Post increment/decrement occurs after the expression is evaluated and output.

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X is incremented before multiplying to y and same goes for y. Answer is 5

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Answer = 8. causes, That's happen post increment and post decrement.

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x=5 y=2 case1: cout<<++x*--y; //6*1=6 after evaluation x=6,y=1 case2: cout<<x++*y--; //5*2=10 after evaluation x=6,y=1

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Becoz in this there is post increment and Decrement operator .so it take values increase and decrease of only x and y after the multiplication.