View Code of Problem 25

#include <stdio.h>
int main(){
	char a,b;
  	a=getchar();
  if(a>=0&&a<=9){
  	return 0;
  }
  else
  
  {
  	b=a+32;
  	prinf("%d,%c",b,b);
  	return 0;
  }

}
/*
Main.c: In function 'main':
Main.c:12:4: warning: implicit declaration of function 'prinf' [-Wimplicit-function-declaration]
    prinf("%d,%c",b,b);
    ^
/tmp/cccUE5c7.o: In function `main':
Main.c:(.text+0x42): undefined reference to `prinf'
collect2: error: ld returned 1 exit status
*/