Variables en C

int x = 5;
printf("%d", x);

int a = 3;
int b = 2;
printf("%d", a+b);

int x;
x = 10;

int x = 4;
printf("%d", x*2);

int x = 7;
x = x + 3;
printf("%d", x);

int a = 2;
int b = 5;
printf("%d", b-a);

int x = 3;
int y = 4;
printf("%d", x*y);

int x = 9;
printf("%d", x-4);

int x = 2;
printf("%d", x+5);

int edad = 20;

int x = 10;
x = x/2;
printf("%d", x);

int x = 6;
printf("%d", x+1);

int x = 8;
printf("%d", x/2);

int x = 5;
int y = x + 2;
printf("%d", y);

int x = 4;
printf("%d", x*x);

int x = 12;
printf("%d", x-2);