int f(int n)

{ if (n) return f(n - 1) + n;

else return n;

}

void f(int n)

{ if(n<5)

printf("%d", n);

else{

printf("%d", n%5);

f(n/5);

}

}

int f(int m)

{

static int i=0;

int s=0;

for(;i<=0;i++)

s+=i;

return s;

}

#include <stdio.h>

void swap(int *x, int *y){

int *z;

z=x; x=y; y=z;

}

int main(){

int x=8, y=3;

swap(&x, &y);

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

return 0;

}

#include <stdio.h>

int fun3(int x) {

  static int a = 3;

  a += x;

  return (a);

}

int main()

{

  int k = 2, m = 1, n;

  n = fun3(k); n = fun3(m);

  printf("%d\n", n);

  return 0;

}