Find the output of C programs
Program 1
kw.c
#include <stdio.h>
int main()
{
    int _ = 5, __ = 10, ___;
    ___ = _ + __;
    printf("%i\n", ___);
    return 0;
}
kodingwindow@kw:~$ gcc kw.c
kodingwindow@kw:~$ ./a.out
15
kodingwindow@kw:~$
Program 2
kw.c
#include <stdio.h>
int main()
{
    int a = 20;
    {
        int a = 40;
        // variables can have same name in different scope
    }
    printf("%d\n", a);
    return 0;
}
kodingwindow@kw:~$ gcc kw.c
kodingwindow@kw:~$ ./a.out
20
kodingwindow@kw:~$
Program 3
kw.c
#include <stdio.h>
void main()
{
    int x;
    x = 10, 20, 30;
    printf("%d\n", x);
}
kodingwindow@kw:~$ gcc kw.c
kodingwindow@kw:~$ ./a.out
10
kodingwindow@kw:~$
What Next?
C Control Statements
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