课后作业,求最小值等题目答案

#include <stdio.h>

int main()

{

int letter=0,blank=0,digit=0,other=0;

char c;

while((c=getchar())!='\n'){

if(c==' ')

blank++;

else if(c>='0'&&c<='9')

digit++;

else if((c>='a'&&c<='z')||c>='A'&&c<='Z')

letter++;

else other++;

}

printf("letter=%d, blank=%d, digit=%d, other=%d\n",letter,blank,digit,other);

return 0;

}

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