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How to swap 3 numbers without using 4th variable?
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Answer / ilana
The target is a<-b b<-c c<- a
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a = a+b+c ; // a+b+c b c
c = c+b; // a+b+c b b+c
b = c-b; // a+b+c c b+c
c = a-c; // a+b+c c a
a = a-(b+c) // b c a
| Is This Answer Correct ? | 12 Yes | 7 No |
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