UVa 00489 - Hangman Judge * (just do as asked)

Link: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=6&page=show_problem&problem=430
Sol:

#include <cstdio>
	#include <cmath>
	#include <cstring>
	#include <cctype>
	#include <iostream>
	#include <algorithm>
	#include <stack>
	#include <queue>
	#include <vector>
	#include <map>
	#include <set>
	#include <limits>
	#define iter(a,b,c,d) for(a = b; a < c; a+=d)
	#define ited(a,b,c,d) for(a = b; a > c; a-=d)
	#define li long int
	#define uli unsigned li
	#define ll long li
	#define ull unsigned ll
	#define si(a) scanf("%d",&a)
	#define sli(a) scanf("%ld",&a)
	#define sll(a) scanf("%lld",&a)
	#define slu(a) scanf("%llu",&a)
	#define sf(a) scanf("%f",&a)
	#define slf(a) scanf("%lf",&a)
	#define PI 3.1415926
	using namespace std;
	int main()
	{
	/*freopen("1in.txt", "r", stdin);
	freopen("1out.txt", "w", stdout);*/
	ll charmask;
	int n;
	while(scanf("%d\n",&n) && n != -1)
	{
	charmask = 0;
	string s1,s2;
	cin >> s1;
	int i;
	iter(i,0,s1.size(),1)
	{
	charmask |= (1 << (s1[i] - 'a'));
	}
	//cout << charmask << endl;
	cin >> s2;
	int wrong = 0;
	ll mask2 = 0;
	iter(i,0,s2.size(),1)
	{
	ll temp = charmask & (1 << (s2[i] - 'a'));
	//cout << temp << endl;
	if(temp)
	{
	mask2 |= temp;
	if(charmask == mask2)
	break;
	}
	else
	{
	wrong++;
	if(wrong >= 7) break;
	}
	}
	//cout << wrong << endl;
	if(charmask == mask2 && wrong < 7)
	printf("Round %d\nYou win.\n",n);
	else if(charmask != mask2 && wrong < 7)
	printf("Round %d\nYou chickened out.\n",n);
	else
	printf("Round %d\nYou lose.\n",n);
	}
	return 0;
	}