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pointer_swap
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//gcc 5.4.0 #include <stdio.h> void swap(int *a,int *b) { int *t; *t=*a; *a=*b; *b=*t; printf("%d\n%d",*a,*b); } int main() { int p=3,q=2,*a,*b; a=&p; b=&q; swap(a,b); return 0; }
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