题目描述
Do you remember the game in which we find difference among several similar pictures? Now we change it into digital version. There are N digits, same or different. Please find how many different digits there are among them and output the number.
输入
Each group of the first line is N (1<=N<=10000). The second line consists N integers.
输出
The number of different digits.
样例输入
2
1 1
3
1 2 3
样例输出
1
3
参考代码
#include <stdio.h>
int main()
{
int s,a[10000],n=1,i,j;
while (~scanf("%d",&s)&&s)
{
for (i=0; i<s; i++)scanf("%d",a+i);
for (i=1; i<s; i++)
for (j=i-1; j>=0; j--)
{
if (a[j]==a[i])break;
if (j==0)n++;
}
printf("%dn",n);
}
return 0;
}
解析
暂无
