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#include<stdio.h>voidupdate(int*a,int*b){intx,y;x=*a+*b;y=*a-*b;*a=x;*b=abs(y);// abs() returns the absolute value in C}intmain(){inta,b;int*pa=&a,*pb=&b;scanf("%d %d",&a,&b);update(pa,pb);printf("%d\n%d",a,b);return0;}
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Pointers in C
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