Here a,b are two variables of type int.
Method 1:
a=a+b;
b=a-b;
a=a-b;
Method 2:
a=a*b;
b=a/b;
a=a/b;
Method 3:
a=a^b;
b=a^b;
a=a^b;
Method 4:
a=(a+b)-(b=a);
Method 5:
/*With temp. variable*/
temp=a;
temp=a;
a=b;
b=temp;
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