How will you swap two numbers without using a temp

Question

Prakash King · Accepted Answer

int a = 5; int b = 10;
a = a + b;     // i.e. a = 5 + 10 = 15; 
b = a - b;  // i.e. b = 15 - 10 = 5;
a = a - b;   // i.e. a = 15 - 5 = 10;

Final Answer is a = 10 and b = 5.

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