Second Largest Number in An Array

#include
int main(void) {
int pri, sec, i, v;
int arr[] = {4,10,3,8,6,7,2,7,9,2,0};
pri = sec = 0;
for (i = 0; arr[i]; ++i) {
v = arr[i];
if (v > pri)
{
sec = pri;
pri = v;
}
else if ((v > sec && v < pri)||(pri == sec))
sec = v;
}
printf("pri is %d, sec is %d\n", pri, sec);
return 0;
}