救命啊，大学C语言真的想不出，希望有解释

Question

#include<stdio.h>

int main( )

{

int x = 1 , y = 2 ;

printf( "x=%d y=%d sum=%d\n" , x , y , x + y ) ;

printf( "10 squared is : %d\n" , 10 * 10 ) ;

   return 0 ;

}

Answer 1

#include<stdio.h>
int main( )
{
    int x = 1,y = 2 ;   //声明变并赋初值，x = 1  y=2
    printf( "x=%d y=%d sum=%d\n" , x , y , x + y ) ; //打印
    printf( "10 squared is : %d\n" , 10 * 10 ) ;
   return 0 ;
}