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GATE CS and IT 2015 Paper

Question : 34

Total: 65

The output of the following C program is__________.

  void f1(int a, int b)   {
         int c;
         c=a; a=b; b=c;
   }
   void f2(int *a, int *b) {
         int c;
         c=*a; *a=*b; *b=c;
   }
    int main()  { 
          int a=4, b=5, c=6;
          f1(a,b);
          f2(&b, &c);
          printf(“%d”,c-a-b);
   }

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