1.#include <stdio.h>
int main()
{
char c = " ";
while( c==" " || c==" " || c=="
" )
{
scanf("%c", &c);
}
return 0;
}
2.#include <stdio.h>
int main()
{
char* p1 = 1 ;
char* p2 = '1';
char* p3 = "1";
printf("%s, %s, %s", p1, p2, p3);
printf('
');
printf("
");
return 0;
}