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20 Questions 1 hour time duration.


all are theory questions.


1) 8085 address lines and memory range.?

2) swapping of two numbers with out using third variable?

3) a piece of work done in 20,30,60 days(A,B,C) respectively. A takes help
of B and C. In how many he completes the work.?

4) #include<stdio.h>
void main()
{
int i=-1,j=-1,k=0,l=1,m;
m=i++&&j++&&k++||l++;
printf("%d%d%d%d%d",i,j,k,l,m);
} explain why.?

5)#include<stdio.h>
int main()
{
int i;
char s[3]="man";
for(i=0;i<3;i++)
{
printf("\n%c%c%c%c",s[i],i[s],*(i+s),*(s+i));
}
return 1;
}


6)#include<stdio.h>
int main()
{
extern int i;
i=20;
printf("%d",i);
return 1;
}


7) difference between function overloading and operator overloading.?

8) Triangle(ans : 12) How many triangles are there inside the triangle.?

9) How Variables declared in C are different from c++?

10) What is the use of enum data type?

11) What is array of pointers and pointers of array.?

12) What is copy constructor ?

13) What is dangling pointer?

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