View Code of Problem 43

#include <iostream>
#include <string.h>
using namespace std;

int main(){
  char str[91];
  cin>>str;
  int len = strlen(str);
  for(int j = 0;j < len;j ++){
    if((str[j]>='a'&&str[j]<='z')||(str[j]>='A'&&str[j]<='Z'))
      printf("%c",str[j]);
  }
  return 0;
}