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CuriousTab

Functions problems


  • 1. What will be the output of the program?
    #include<stdio.h>
    
    int fun(int i)
    {
        i++;
        return i;
    }
    
    int main()
    {
        int fun(int);
        int i=3;
        fun(i=fun(fun(i)));
        printf("%d\n", i);
        return 0;
    }
    

  • Options
  • A. 5
  • B. 4
  • C. Error
  • D. Garbage value
  • Discuss
  • 2. What will be the output of the program?
    #include<stdio.h>
    int func1(int);
    
    int main()
    {
        int k=35;
        k = func1(k=func1(k=func1(k)));
        printf("k=%d\n", k);
        return 0;
    }
    int func1(int k)
    {
        k++;
        return k;
    }
    

  • Options
  • A. k=35
  • B. k=36
  • C. k=37
  • D. k=38
  • Discuss
  • 3. What will be the output of the program in 16 bit platform (Turbo C under DOS)?
    #include<stdio.h>
    
    int main()
    {
        int fun();
        int i;
        i = fun();
        printf("%d\n", i);
        return 0;
    }
    int fun()
    {
        _AX = 1990;
    }
    

  • Options
  • A. Garbage value
  • B. 0 (Zero)
  • C. 1990
  • D. No output
  • Discuss
  • 4. What will be the output of the program?
    #include<stdio.h>
    void fun(int*, int*);
    int main()
    {
        int i=5, j=2;
        fun(&i, &j);
        printf("%d, %d", i, j);
        return 0;
    }
    void fun(int *i, int *j)
    {
        *i = *i**i;
        *j = *j**j;
    }
    

  • Options
  • A. 5, 2
  • B. 10, 4
  • C. 2, 5
  • D. 25, 4
  • Discuss
  • 5. What will be the output of the program?
    #include<stdio.h>
    
    int main()
    {
        int fun(int);
        int i = fun(10);
        printf("%d\n", --i);
        return 0;
    }
    int fun(int i)
    {
       return (i++);
    }
    

  • Options
  • A. 9
  • B. 10
  • C. 11
  • D. 8
  • Discuss
  • 6. What will be the output of the program?
    #include<stdio.h>
    int reverse(int);
    
    int main()
    {
        int no=5;
        reverse(no);
        return 0;
    }
    int reverse(int no)
    {
        if(no == 0)
            return 0;
        else
            printf("%d,", no);
        reverse (no--);
    }
    

  • Options
  • A. Print 5, 4, 3, 2, 1
  • B. Print 1, 2, 3, 4, 5
  • C. Print 5, 4, 3, 2, 1, 0
  • D. Infinite loop
  • Discuss
  • 7. What will be the output of the program?
    #include<stdio.h>
    int fun(int);
    int main()
    {
        float k=3;
        fun(k=fun(fun(k)));
        printf("%f\n", k);
        return 0;
    }
    int fun(int i)
    {
        i++;
        return i;
    }
    

  • Options
  • A. 5.000000
  • B. 3.000000
  • C. Garbage value
  • D. 4.000000
  • Discuss
  • 8. What will be the output of the program?
    #include<stdio.h>
    void fun(int);
    typedef int (*pf) (int, int);
    int proc(pf, int, int);
    
    int main()
    {
        int a=3;
        fun(a);
        return 0;
    }
    void fun(int n)
    {
        if(n > 0)
        {
            fun(--n);
            printf("%d,", n);
            fun(--n);
        }
    }
    

  • Options
  • A. 0, 2, 1, 0,
  • B. 1, 1, 2, 0,
  • C. 0, 1, 0, 2,
  • D. 0, 1, 2, 0,
  • Discuss
  • 9. What will be the output of the program?
    #include<stdio.h>
    int check (int, int);
    
    int main()
    {
        int c;
        c = check(10, 20);
        printf("c=%d\n", c);
        return 0;
    }
    int check(int i, int j)
    {
        int *p, *q;
        p=&i;
        q=&j;
        i>=45? return(*p): return(*q);
    }
    

  • Options
  • A. Print 10
  • B. Print 20
  • C. Print 1
  • D. Compile error
  • Discuss
  • 10. What will be the output of the program?
    #include<stdio.h>
    int check(int);
    int main()
    {
        int i=45, c;
        c = check(i);
        printf("%d\n", c);
        return 0;
    }
    int check(int ch)
    {
        if(ch >= 45)
            return 100;
        else
            return 10;
    }
    

  • Options
  • A. 100
  • B. 10
  • C. 1
  • D. 0
  • Discuss

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