TCS Placement Questions & Answers :: TCS

A calculator has a key for squaring and one for inverting. So if x is the displayed number, then pressing the square key will replace x by x2 and pressing the invert key will replace x by 1/x. If initially the number displayed is 6 and one alternately presses the invert and square key 16 times each, then the final number displayed (assuming no roundoff or overflow errors) will be

#include <stdio.h>
int main()
{
static int i;
int j;
for(j=0;j<10;j++)
{
i= i+2;
i = i-j;
}
printf("%d",i);
return 0;
}

#include <stdio.h>
int main()
{
       int ones, twos, threes, others;
       int c;
       ones = twos = threes = others = 0;
       while ((c = getchar ()) != EOF)
       {
                  switch (c)
                  {
                     case '1': ++ones;
                     case '2': ++twos;
                     case '3': ++threes;
                                       break;
                     default: ++others;
                                       break;
                  }
       }
       printf ("%d  %d", ones, others);
       return 0;
    }

#include <stdio.h>
void print(char *p);
int main()
{
char s[] = "T.C.S", *A;
print(s);
return 0;
}
void print(char *p)
{
while (*p != '\0')
{
if (*p != '.')
printf ("%c", *p);
p++;
}
}

Which of the choices is true for the mentioned declaration?

const char *p;
and
char * const p;

Choose one of them:

#include<stdio.h>
int main(){
char p[]="String";
int x;
if(p=="String"){
printf("Pass 1");
if(p[sizeof(p)-2]=='g')
printf("Pass 2");
else
printf("Fail 2");
}
else{
printf("Fail 1");
if(p[sizeof(p)-2]=='g')
printf("Pass 2");
else
printf("Fail 2");
}
return 0;
}

#include<stdio.h>
#include<malloc.h>
int myalloc(char *x, int n){
x= (char *)malloc(n*sizeof(char));
memset(x,\0,n*sizeof(char));
}
int main(){
char *g="String";
myalloc(g,20);
printf("The string is %s",g);
return 0;
}

#include<stdio.h>
#include<string.h>
char *gxxx(){
static char xxx[1024];
return xxx;
}
int main(){
char *g="string";
strcpy(gxxx(),g);
g = gxxx();
strcpy(g,"oldstring");
printf("The string is : %s",gxxx());
return 0;
}

#include<stdio.h>
int main(){
unsigned int x=-1;
int y;
y = ~0;
if(x == y)
printf("same");
else
printf("not same");
printf("%u %d",x,y);
return 0;
}

#include<stdio.h>
#include<string.h>
#include<malloc.h>
int main(){
int i;
char a[]="String";
char *p="New Sring";
char *Temp;
Temp=a;
a=malloc(strlen(p) + 1);
strcpy(a,p); //Line no:9//
p = malloc(strlen(Temp) + 1);
strcpy(p,Temp);
printf("(%s, %s)",a,p);
free(p);
free(a);
return 0;
} 

Chose correct option