#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 an array X that contains n positive integers. A subarray of X is defined to be a sequence of array locations with consecutive indices.

The C code snippet given below has been written to compute the length of the longest subarray of X that contains at most two distinct integers. The code has two missing expressions labelled (P) and (Q).

int first=0, second=0, len1=0, len2=0, maxlen=0;
for (int i=0; i < n; i++) {
  if (X[i] == first) {
    len2++;
    len1++;
  } else if (X[i] == second) {
    len2++;
    len1 = (P);
    second = first;
  } else {
    len2 = (Q);
    len1 = 1;
    second = first;
  }
  if (len2 > maxlen) {
    maxlen = len2;
  }
  first = X[i];
}

Which one of the following options gives the CORRECT missing expressions?

(Hint: At the end of the i-th iteration, the value of len1 is the length of the longest subarray ending with X[i] that contains all equal values, and len2 is the length of the longest subarray ending with X[i] that contains at most two distinct values.)

Consider the following program:

Which one of the following options represents the activation tree corresponding to the main function?