The document contains code snippets demonstrating the use of static and auto variables in C functions. In the first snippet, a function declares an auto integer x which prints uninitialized on the first call but retains its value between calls after being assigned. The second snippet demonstrates both a static and auto variable, with the static y retaining its value between calls and x resetting. The third snippet initializes x and y as static to increment between repeated calls. The final snippet uses static variables to track scores in a game, incrementing the appropriate variable when called and printing the running score.

1. #include<stdio.h>
f1()
{
auto int x;
printf("x = %dn",x);
x=12;
}
main()
{
f1();
system("pause");
f1();
}
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#include<stdio.h>
f1()
{
auto int x;
static int y;
printf("x = %d e y=%dn",x,y);
x=12;
y=7;
}
main()
{
f1();
system("pause");
f1();
}
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#include<stdio.h>
f1()
{
auto int x=10;
static int y=10;
printf("x = %d e y=%dn",x,y);
x=x+1;
y=y+1;
}
main()
{
f1();
f1();
f1();
f1();
f1();
}
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{ //atualiza == 0: apenas mostro placar
//atualiza == 1: alguem fez gol
// quemFezGol == 0 : Time Local
// quemFezGol == 1: Time Visitante
static int g1 =0, g2=0;
// g1: gols do time local
// g2: gols do time visitante

2. if (atualiza ==1)
if (quemFezGol == 0) g1++;
else g2++;
printf(" Corinthians %d x %d Santosn", g1,g2);
}
main()
{
placar(0,0);
placar(1,1);
placar(1,1);
placar(1,0);
placar(0,0);
}
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