View Code of Problem 43

#include<stdio.h>
#include<string.h>
#include<math.h>
#include<algorithm>
using namespace std;

int main()
{
    char str[100];
    char an[100];
    scanf("%s",str);
    int j = 0;
    for(int i =0;i<strlen(str);i++)
    {
        if((str[i] >= 'a' && str[i] <= 'z') || (str[i] >= 'A' && str[i] <= 'Z'))
        {
            an[j++] = str[i];
        }
        an[j] = '\0';
    }
    printf("%s\n",an);
}