#include<stdio.h>

         int main()
         {

           char ch = 'A';

           printf("%d\n",'ag');

           printf("%d\n",'a');

           printf("%d, %d, %d, %d", sizeof(ch), sizeof('a'), sizeof('Ag'), sizeof(3.14f));

          return 0;
         }

I used to have many doubts on the output of this question while running on g++ and gcc.

But I have cleared almost all the doubts by referring these links:

1. Single and double quotes in C/C++

2. Single quotes vs. double quotes in C

I still need to understand one thing about the output of this question.

Can someone please explain the output of printf("%d\n",'ag'); mentioned above in the program. How is it actually stored in the memory?

The output for the program on the Linux/GCC platform is:

24935
97
1, 4, 4, 4