What will be the output of the program?

#include<stdio.h>
int

What will be the output of the program?

#include<stdio.h>
int check(int);
int main()
 {
     int i=45, c;
     c = check(i);
     printf("%d\n", c);
     return 0;
 }
int check(int ch)
 {
     if(ch >= 45)
         return 100;
     else
         return 10;
 }

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1) What will be the output of the program?

#include<stdio.h>
int i;
int fun1(int);
int fun2(int);

int main()
 {
     extern int j;
     int i=3;
     fun1(i);
     printf("%d,", i);
     fun2(i);
     printf("%d", i);
     return 0;
 }
int fun1(int j)
 {
     printf("%d,", ++j);
     return 0;
 }
 int fun2(int i)
 {
     printf("%d,", ++i);
     return 0;
 }
 int j=1;

2) What will be the output of the program?

#include<stdio.h>
int sumdig(int);
int main()
{
     int a, b;
     a = sumdig(123);
     b = sumdig(123);
     printf("%d, %d\n", a, b);
     return 0;
 }
int sumdig(int n)
 {
     int s, d;
     if(n!=0)
     {
         d = n%10;
         n = n/10;
         s = d+sumdig(n);
     }
     else
         return 0;
     return s;
 }

3) Point out the error in the program

#include<stdio.h>
int f(int a)
 {
   a > 20? return(10): return(20);
 }
int main()
 {
     int f(int);
     int b;
     b = f(20);
     printf("%d\n", b);
     return 0;
 }

4) Which of the following statements are correct about the program?

#include<stdio.h>
int main()
 {
     printf("%p\n", main());
     return 0;
 }

5) What will be the output of the program?

#include<stdio.h>
int main()
 {
     int i=1;
     if(!i)
         printf("Study2Online,");
     else
     {
         i=0;
         printf("C-Program");
         main();
     }
     return 0;
 }