杭电acm2027

http://acm.hdu.edu.cn/showproblem.php?pid=2027

利用数组下标和ascii码的性质存储数据

#include<stdio.h>
int main()
{
 int a[26],i,n;
 char s[200];
 scanf("%d",&n);
     gets(s);
 while(n--) 
    {gets(s);
     for(i=0;i<26;i++)
        a[i]=0;
     for(i=0;s[i]!='\0';i++)
       if(s[i]>='a'&&s[i]<='z')
          a[s[i]-'a']++;
     printf("a:%d\n",a['a'-97]);
     printf("e:%d\n",a['e'-97]);
     printf("i:%d\n",a['i'-97]);
     printf("o:%d\n",a['o'-97]);
     printf("u:%d\n",a['u'-97]);
     if(n)
       printf("\n");
    }
 return 0;
}