Being unique is so important to people on Mars that even their lottery is designed in a unique way. The rule of winning is simple: one bets on a number chosen from [1, 10]. The first one who bets on a unique number wins. For example, if there are 7 people betting on 5 31 5 88 67 88 17, then the second one who bets on 31 wins.

Input Specification:

Each input file contains one test case. Each case contains a line which begins with a positive integer N (<=10) and then followed by N bets. The numbers are separated by a space.

Output Specification:

For each test case, print the winning number in a line. If there is no winner, print "None" instead.

Sample Input 1:

7 5 31 5 88 67 88 17

Sample Output 1:

31

Sample Input 2:

5 888 666 666 888 888

Sample Output 2:

None
 #include <stdio.h>
int lottery(int *,int);
int main(void)
{
//freopen("in.txt","r",stdin);
int n;
int num[];
int i; scanf("%d",&n);
for(i=;i<n;i++)
{
scanf("%d",&num[i]);
}
lottery(num,n);
return ;
}
int lottery (int *num,int n)
{
int i,j;
int flag;
int count[]={}; for(i=;i<n;i++)
{
count[num[i]]++;
} for(i=;i<n;i++)
{
if(count[num[i]]==)
{
printf("%d\n",num[i]);
return ;
}
} printf("None\n");
return ;
}
05-11 09:23