Problem from code coach.

Question

https://www.sololearn.com/coach/55?ref=app.

my solution in C++ is below (it's not working) :

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

bool is_letter(char a)
{
int b;
b = (int)a;/*converts char to int(ASCII value)*/
if(b==32)/* 32 is the ASCII value of space */
{
return true;
}
if((b>=65||b<=90)||(b>=97||b<=122)) /*letters 'A' to 'Z' & 'a' to 'z' respectively */
{
return true;
}
return false;
};

int main() {
string message,hidden;
getline(cin,message);
int length = message.size();
int i,j=0;
for(i=(length-1);i>=0;i--)
{
if(is_letter(message[i]))
{
hidden[j]=message[i];
j++;
}
}
cout<<hidden<<endl;
return 0;
}

Answer 1

Do it like this:
https://sololearn.com/compiler-playground/c0eFsLlK2g9F/?ref=app

Answer 2

Rowlet ,

i did a try that is easy to read, to understand.

for checking if the input characters are alphabetical or a space, we can use the functions: isalpha() and isspace() in an if... conditional. this runs inside a for loop that picks the characters one at a time.

inside the if conditional the new string will be built.

to reverse the newly created string, we can use the reverse()

>> to open the file, do not click the pur text link but the other one.

https://sololearn.com/compiler-playground/c39N5ZxZWEIy/?ref=app

Answer 3

Mila ,

the code you presented has a truncated output - the first letter of each word is missing.