C programming solution

c program to remove characters in string except alphabets if you enter any string then it removes all character from string except alphabet. #include<stdio.h> int main() {     char line[150];     int i, j;     printf("Enter a string: ");     gets(line);     for(i = 0; line[i] != '\0'; ++i)     {         while (!( (line[i] >= 'a' && line[i] <= 'z') || (line[i] >= 'A' && line[i] <= 'Z') || line[i] == '\0') )         {             for(j = i; line[j] != '\0'; ++j)             {                 line[j] = line[j+1];             }             line[j] = '\0';         }     }     printf("Output String: "); ...