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typedef unsigned long va_list;
#define va_start(list, arg) ((list) = (unsigned long)&arg)
#define va_arg(list, type) (*((type *)(list += ((sizeof(type) + 7) & 0xfffffffffffffff8))))
#define va_end(list)
int sum(int n, ...) {
va_list args;
int i;
int total = 0;
va_start(args, n);
for (i = 0; i < n; ++i) {
total += va_arg(args, int);
}
return total;
}
long factorial(long x) {
if (x == 0) {
return 1;
} else {
return x * factorial(x-1);
}
}
long fibonacci(long x) {
return x > 0 ?
x > 1 ?
fibonacci(x-1) + fibonacci(x-2)
: 1
: 0;
}
long gcd(long a, long b) {
while (a != 0) {
long temp = a;
a = b % a;
b = temp;
}
return b;
}
int f() {
lb: goto lb;
}
int main(int argc, char **argv) {
return sum(3, -100, 200, -300);
}
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