C Programming

#include <stdio.h>
void foo(int *p, int x){
    *p=x;
}
int main(){
    int *z;
    int a = 20, b = 25;
    z = &a;
    foo(z,b);
    printf("%d",a);
    return 0;
}

The output of the given C program is __________. (Answer in integer)

#include <stdio.h>
int foo(int S[],int size){
    if(size == 0) return 0;
    if(size == 1) return 1;
    if(S[0] != S[1]) return 1+foo(S+1,size-1);
    return foo(S+1,size-1);
}
int main(){
    int A[]={0,1,2,2,2,0,0,1,1};
    printf("%d",foo(A,9));
    return 0;
}

The value printed by the given C program is _______. (Answer in integer)

Consider the following C program:

#include <stdio.h>
int gate (int n) {
    int d, t, newnum, turn;
    newnum = turn = 0; t=1;
    while (n>=t) t *= 10;
    t /=10;
    while (t>0) {
        d = n/t;
        n = n%t;
        t /= 10;
        if (turn) newnum = 10*newnum + d;
        turn = (turn + 1) % 2;
    }
    return newnum;
}
int main () {
    printf ("%d", gate(14362));
    return 0;
}

The value printed by the given C program is _______. (Answer in integer)

Consider the following C program:

#include <stdio.h>
void stringcopy(char *, char *);
int main(){
  char a[30] = "@#Hello World!";
  stringcopy(a, a + 2);
  printf("%s\n", a);
  return 0;
}
void stringcopy(char *s, char *t) {
  while(*t)
    *s++ = *t++;
}

Which ONE of the following will be the output of the program?

int x=126,y=105;
do {
     if(x>y) x=x-y;
     else y=y-x;
} while(x!=y);
printf("%d",x);

The output of the given C code segment is ________. (Answer in integer)

Consider the following C program:

#include <stdio.h>
int main(){
  int a;
  int arr[5] = {30,50,10};
  int *ptr;
  ptr = &arr[0] + 1;
  a = *ptr;
  (*ptr)++;
  ptr++;
  printf("%d", a + (*ptr) + arr[1]);
  return 0;
}

The output of the above program is ___________. (Answer in integer)

Consider the following C program:

#include <stdio.h>

int g(int n) {
    return (n+10);
}

int f(int n) {
    return g(n*2);
}

int main() {
    int sum, n;
    sum=0;
    for (n=1; n<3; n++)
        sum += g(f(n));
    printf ("%d", sum);
    return 0;
}

The output of the given C program is ________. (Answer in integer)