zoj 2481 Unique Ascending Array

#include <iostream>#include <cstdio>#include <set>using namespace std;typedef set<int> Set;typedef Set::iterator It;int main(){int n, x, i;while (scanf("%d", &n) && n){Set st;for (i = 0; i < n; i++){scanf("%d", &x);st.insert(x);}i = 0;for (It it = st.begin(); it != st.end(); it++){if (i++)putchar(32);printf("%d", *it);}putchar(10);}return 0;}