#include <stdio.h>
int x=0;
int y=1;
void add_k_to_xy(int k, int z)
{
int y=0;
x = x + k;
y = y + k;
z = z + k;
}
int main()
{
int z=0;
x = x + 4;
y = y + 4;
z = z + 4;
add_k_to_xy(3,2);
printf("x:%d y:%d z:%d\n", x
,y
,z
);
}
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