# Paper 1
Sec 1: 20 tech (full c) 30 min -ve marking 0.5 marks so no guessing.........
Sec 2: Programming - 30 min
The questions are not in order...
paper code- #TC 07
1) main(){
int x;
printf("n%d",x=0,x=20,x=40);
}
ans: 0
2) question om Macro sunstitution ( very easy)
3)main(){
int a[]={1,2,5,6,9,10};
int *b=&a[4];
printf("n%d",b[-3]);
}
ans:6
4)main(){
int x=0,y=1;
if(x=y) y= 7;
else
y=2;
value of y?
}
ans:7
5)question on switch....
case A:case B...
some code.
ans:runtime error
6)main(){
int n=39,count=0;
while( i & 1) //some condition like this
{
count++;
i>>1;
}
}
value of count?
ans:4
7)main(){
int x=128;
printf("n%d",1+x++);
}
ans:129
8)printf(const char,...);
main(){
some code
}
ans:complier error
9)main(){
FILE *f1;
FILE *f2;
f1=fopen("myfile","w");
f2=fopen("myfile","w");
fputc('A',f1);
fputc('B',f2);
fclose(f1);
fclose(f2);
}
what does f1 n f2 conatins?
ans:check out this
10)if i/p is code friday monday sunday in commad line then
main(int argc,char *argv[]){
printf("n%c",**++argv);
}
ans:may be f (check out not sure...)
11)#define max 10
main(){
printf("n%d",max++);
}
ans:compiler error
12)main(){
int a[]={1,2,9,8,6,3,5,7,8,9};
int *p=a+1;
int *q=a+6;
printf("n%d",q-p);
}
ans:5
13)main(){
int i=3;
while(i--){
int i=100;
i--;
printf("n%d",i);
}
}
o/p?
ans: 99,99,99
(this is not infinite loop)
14)what does (*a)[10] means?
ans: a is pointer to an array of 10 inegers
15)a big program involving malloc, strlen, strcmp...
ans:runtime error
1.
void main()
{
enum bool{true,false};
if(true==(2==3)
printf(?..
else
printf(?..
}
2.
void main()
{
printf(?%d?,(float)3/2);
}
3.
void main()
{
int (*func)(const *char)=strlen;
printf(?%d?, func(?Hello?);
}
4.
void main() {
char *s=?Hello World?;
printf(?%c?,s);
}
5.
File fp,fs;
fp=fopen(?tc.dat?,?w?);
fs=fopen(?tc.dat?,?w?);
putch(?A?,fp);
putch(?B?,fs); What will happen?
6.
What is the equivalent of a[i] Ans: *(a+i)
7.
int (*func)(int,int) is a pointer to a function with 2 integers as parameters and returning an integer value.
8.
int *(*func)(int *,int *) is a pointer to a function with 2 integer pointers as parameters and returning a pointer to
an integer Which of a and b is true?
Ans: Both are true.
9.
switch(float value) this is compiler error.
10.
int a[5]={1,2,3,4,5};
int *p=a+1;
int *q=a+5;
int dif=q-p;
value of dif is 4 ( q-p is evalueated as q-p/sizeof int)
11.
Switch(NULL)
ans: case 0: will be executed.
12.
#define exp 5
printf("%d",exp++);
ans: compilation error lvalue required
13.
strcat(str,str);
ans: compilation error
14.
Pointers can be subtracted from each other, can be added, constant cab be added or subtrated from pointer, but multipilcation with constant to pointer is not possible.
15.
int(*ptr)[10] pointer to array of 10 integers.
