题解 | #字符个数统计#
字符个数统计
http://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
include <stdio.h>
int main()
{
char buff[1024]={0};
char table[128]={0};
int total=0;
gets(buff);
for(int i=0;i<strlen(buff); i++)
{
table[buff[i]]++;
if(table[buff[i]] == 1)//如果第一次出现则总数加一
total++;
}
printf("%d\n",total);
return 0;}