//字符类型判断
#include <stdio.h>
void count(char *s, int *digit, int *letter, int *other, int *lower, int *k)
{   
 int i;
 for(i=0;i<10;i++) 
 {  
  if(s[i]>='a'&&s[i]<='z') 
   (*letter)++;
  else if(s[i]>='A'&&s[i]<='Z')
  (*lower)++;
  else if(s[i]>'0'&&s[i]<'9') 
   (*digit)++;
   else if(s[i]==' ')
   (*k)++;
  else         
   (*other)++;    
 }
 
}

int main() 
{
 int x=0,y=0,z=0,a=0,b=0; 
 char ch[80];
 printf("Enter a string:");
 gets(ch);
 count(ch,&x,&y,&z,&a,&b);
 printf("小写字母有：%d个,大写字母有：%d个,数字有: %d个,空格有: %d个,其它符号有:%d个\n",x,y,z); 
}

//斐波那契数列
#include <stdio.h>
void fib(int n)
{
int i,a,b,c;
for(i=0;i<n;i++)
{
if(i>1)
{
    c=a+b;
    printf("%d ",c);
    a=b;
    b=c;
}
else
{
    a=1;
    b=1;
    printf("1 ");
}
}
}
 
int main(void)
{
int i;
scanf("%d",&i);
fib(i);  
return 1;
}