allvowels.cpp

/* TODO: Write a function that takes a string parameter, and returns a boolean
 * value indicating whether or not *all* vowels (a,e,i,o,u) are present
 * somewhere in the string.  For example, if the input is "hello world", the
 * return value should be false, and on input "programming is super fun!" the
 * return value should be true.
 * NOTE: to simplify things, you can assume the input string is all lower case.
 * */

#include <iostream>
using std::cin;
using std::cout;
using std::endl;
#include <string>
using std::string;

bool all_volwels(const string& s){ //pass by reference
  bool a=false, e=false, i=false,o=false, u=false;
//Loop through each item in
  for(char ch:s){ //“For every character in the string s, temporarily store it in a variable called ch, and do something with it.”
    if (ch=='a') a=true;
    else if (ch=='e') e=true;
    else if (ch=='i') i=true;
    else if (ch=='o') o=true;
    else if (ch=='u') u=true;
    }
    return a && e && i && o && u; //“Return true only if all five of these are true.”
  }                               // logical AND operator.


int main()
{
	string input;// string variable named input to store whatever I type
        cout << " enter a string: ";
        getline(cin, input); //Fills that string with what I typed,Gets the full line of input (spaces too)

        if (all_volwels(input)){
          cout << "all vowels are present" << endl;
        }else{
          cout << "not all vowels are present" << endl;
          }
	return 0;
}

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