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1) Find the output for the following C program

main()
{
char *p1="Name";
char *p2;
p2=(char *)malloc(20);
while(*p2++=*p1++);
printf("%s\n",p2);
}

�Ans. An empty string


2) Find the output for the following C program

main()
{
int x=20,y=35;
x = y++ + x++;
y = ++y + ++x;
printf("%d %d\n",x,y);
}

Ans. 57 94


3) Find the output for the following C program

main()
{
int x=5;
printf("%d %d %d\n",x,x<<2,x»2);
}

Ans. 5 20 1


4) Find the output for the following C program

#define swap1(a,b) a=a+b;b=a-b;a=a-b;
main()
{
int x=5,y=10;
swap1(x,y);
printf("%d %d\n",x,y);
swap2(x,y);
printf("%d %d\n",x,y);
}
int swap2(int a,int b)
{
int temp;
temp=a;
b=a;
a=temp;
return;
}

Ans. 10 5


5) Find the output for the following C program

main()
{
char *ptr = "Ramco Systems";
(*ptr)++;
printf("%s\n",ptr);
ptr++;
printf("%s\n",ptr);
}

Ans. Samco Systems


6) Find the output for the following C program

#include<stdio.h>
main()
{
char s1[]="Ramco";
char s2[]="Systems";
s1=s2;
printf("%s",s1);
}

Ans. Compilation error giving it cannot be an 
modifiable 'lvalue'


7) Find the output for the following C program

#include<stdio.h>
main()
{
char *p1;
char *p2;
p1=(char *) malloc(25);
p2=(char *) malloc(25);
strcpy(p1,"Ramco");
strcpy(p2,"Systems");
strcat(p1,p2);
printf("%s",p1);
}

&#65533;Ans. RamcoSystems


8) Find the output for the following C program given that
[1]. The following variable is available in file1.c
static int average_float;

Ans. All the functions in the file1.c can access the 
variable


9) Find the output for the following C program

# define TRUE 0
some code
while(TRUE)
{
some code
}

Ans. This won't go into the loop as TRUE is defined as 0


10) Find the output for the following C program

main()
{
int x=10;
x++;
change_value(x);
x++;
Modify_value();
printf("First output: %d\n",x);
}
x++;
change_value(x);
printf("Second Output : %d\n",x);
Modify_value(x);
printf("Third Output : %d\n",x);
}
Modify_value()
{
return (x+=10);
}
change_value()
{
return(x+=1);
}

Ans. 12 1 1


11) Find the output for the following C program

main()
{
int x=10,y=15;
x=x++;
y=++y;
printf("%d %d\n",x,y);
}

Ans. 11 16


12) Find the output for the following C program

main()
{
int a=0;
if(a=0) printf("Ramco Systems\n");
printf("Ramco Systems\n");
}

Ans. Ony one time "Ramco Systems" will be printed


13) Find the output for the following C program

#include<stdio.h>
int SumElement(int *,int);
void main(void)
{
int x[10];
int i=10;
for(;i;)
{
i--;
*(x+i)=i;
}
printf("%d",SumElement(x,10));
}
int SumElement(int array[],int size)
{
int i=0;
float sum=0;
for(;i<size;i++)
sum+=array[i];
return sum;
}


Q14) Find the output for the following C program

#include<stdio.h>
void main(void);
int printf(const char*,...);
void main(void)
{
int i=100,j=10,k=20;
-- int sum;
float ave;
char myformat[]="ave=%.2f";
sum=i+j+k;
ave=sum/3.0;
printf(myformat,ave);
}


Q15)&#65533; Find the output for the following C program

#include<stdio.h>
void main(void);
{
int a[10];
printf("%d",((a+9) + (a+1)));
}


Q16)&#65533; Find the output for the following C program

#include<stdio.h>
void main(void)
{
struct s{
int x;
float y;
}s1={25,45.00};
union u{
int x;
float y;
} u1;
u1=(union u)s1;
printf("%d and %f",u1.x,u1.y);
}


Q17)&#65533; Find the output for the following C program

#include<stdio.h>
void main(void)
{
unsigned int c;
unsigned x=0x3;
scanf("%u",&c);
switch(c&x)
{
case 3: printf("Hello!\t");
case 2: printf("Welcome\t");
case 1: printf("To All\t");
default:printf("\n");
}
}


Q18)&#65533; Find the output for the following C program

#include<stdio.h>
int fn(void);
void print(int,int(*)());
int i=10;
void main(void)
{
int i=20;
print(i,fn);
}
void print(int i,int (*fn1)())
{
printf("%d\n",(*fn1)());
}
int fn(void)
{
return(i-=5);
}


Q19)&#65533;Find the output for the following C program

#include<stdio.h>
void main(void);
{
char numbers[5][6]={"Zero","One","Two","Three","Four"};
printf("%s is %c",&numbers[4][0],numbers[0][0]);
}


Q20)&#65533; Find the output for the following C program

int bags[5]={20,5,20,3,20};
void main(void)
{
int pos=5,*next();
*next()=pos;
printf("%d %d %d",pos,*next(),bags[0]);
}
int *next()
{
int i;
for(i=0;i<5;i++)
if (bags[i]==20)
return(bags+i);
printf("Error!");
exit(0);
}


Q21)&#65533; Find the output for the following C program

#include<stdio.h>
void main(void)
{
int y,z;
int x=y=z=10;
int f=x;
float ans=0.0;
f *=x*y;
ans=x/3.0+y/3;
printf("%d %.2f",f,ans);
}


Q22)&#65533; Find the output for the following C program

#include<stdio.h>
void main(void);
{
double dbl=20.4530,d=4.5710,dblvar3;
double dbln(void);
dblvar3=dbln();
printf("%.2f\t%.2f\t%.2f\n",dbl,d,dblvar3);
}
double dbln(void)
{
double dblvar3;
bl=dblvar3=4.5;
return(dbl+d+dblvar3);
}


Q23)&#65533; Find the output for the following C program

#include<stdio.h>
static int i=5;
void main(void)
{
int sum=0;
do
{
sum+=(1/i);
}while(0<i--);
}


Q24)&#65533; Find the output for the following C program

#include<stdio.h>
void main(void)
{
int oldvar=25,newvar=-25;
int swap(int,int);
swap(oldvar,newvar);
printf("Numbers are %d\t%d",newvar,oldvar);
}
int swap(int oldval,int newval)
{
int tempval=oldval;
oldval=newval;
newval=tempval;
}


Q25)&#65533;Find the output for the following C program

#include<stdio.h>
void main(void);
{
int i=100,j=20;
i++=j;
i*=j;
printf("%d\t%d\n",i,j);
}

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Q26)&#65533; Find the output for the following C program

#include<stdio.h>
void main(void);
int newval(int);
void main(void)
{
int ia[]={12,24,45,0};
int i;
int sum=0;
for(i=0;ia[i];i++)
{
sum+=newval(ia[i]);
}
printf("Sum= %d",sum);
}
int newval(int x)
{
static int div=1;
return(x/div++);
}

&#65533;

Q27)&#65533;Find the output for the following C program

#include<stdio.h>
void main(void);
{
int var1,var2,var3,minmax;
var1=5;
var2=5;
var3=6;
minmax=(var1>var2)?(var1>var3)?var1:var3:(var2>var3)?
var2:var3;
printf("%d\n",minmax);


Q28)&#65533; Find the output for the following C program

#include<stdio.h>
void main(void);
{
void pa(int *a,int n);
int arr[5]={5,4,3,2,1};
pa(arr,5);
}
void pa(int *a,int n)
{
int i;
for(i=0;i<n;i++)
printf("%d\n",*(a++)+i);
}


Q29)&#65533; Find the output for the following C program

#include<stdio.h>
void main(void);
void print(void);
{
print();
}
void f1(void)
{
printf("\nf1():");
}


Q30)&#65533;Find the output for the following C program

#include "6.c"
void print(void)
{
extern void f1(void);
f1();
}
static void f1(void)
{
printf("\n static f1().");
}


Q31)&#65533; Find the output for the following C program

#include<stdio.h>
void main(void);
static int i=50;
int print(int i);
void main(void)
{
static int i=100;
while(print(i))
{
printf("%d\n",i);
i--;
}
}
int print(int x)
{
static int i=2;
return(i--);
}


Q32)&#65533; Find the output for the following C program

#include<stdio.h>
void main(void);
typedef struct NType
{
int i;
char c;
long x;
} NewType;
void main(void)
{
NewType *c;
c=(NewType *)malloc(sizeof(NewType));
c->i=100;
c->c='C';
(*c).x=100L;
printf("(%d,%c,%4Ld)",c->i,c->c,c->x);
}


Q33)&#65533; Find the output for the following C program

#include<stdio.h>
void main(void);
const int k=100;
void main(void)
{
int a[100];
int sum=0;
for(k=0;k<100;k++)
*(a+k)=k;
sum+=a[--k];
printf("%d",sum);
} 

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