C语言基础编程求解答

#include
int main()
{
    ch = getchar();
     if ((ch>='A')&&(ch<='Z');
         printf("%d\n",ch);
     else
         ch=ch-32;
         printf("%d\n",ch);
         return 0;
}

错在哪里了，求解答

if语句后面的分号删掉
else要加大括号，将下面两行括起来

#include<stdio.h>
int main()
{
    ch = getchar();
     if ((ch>='A')&&(ch<='Z'))
         printf("%c\n",ch);
     else if(ch>='a' && ch<='z')
      {
         ch=ch-32;
         printf("%c\n",ch);
      }
         return 0;
}

#include<stdio.h>
int main(void)
{
     char n, m;
     n = getchar();
     if(n >= 'A'&&n <= 'Z')
     {
          printf("%d",n);
     }
     else if(n >= 'a'&&n <= 'z')
     {
          m = n - 32;
          printf("%c",m);
     }
     
     return 0;
}