hi, i have some doubt in following program i need to change the vowels into # symbol in first string and consonants into $ symbo

Question

#include <iostream>
#include <string>

using namespace std;

int main()
{
string a,b,c;
getline(cin,a);
getline(cin,b);
getline(cin,c);
for(int i=0;i<a.size();i++)
{
if(a[i]=='a'||'e'||'i'||'o'||'u')
{
cout<<"#";
}
else
{
cout<<a[i];
}
}
for(int i=0;i<b.size();i++)
{
if(b[i]!='a'||'e'||'i'||'o'||'u')
{
cout<<"

Answer 1

Here I have modified the Mohamed ELomari's code

#include <iostream>
#include <string>

using namespace std;

bool VowelOrConsonant(char alpha) {
if(alpha == 'a' || alpha == 'e' || alpha == 'i' || alpha == 'o' || alpha == 'u')
return true;
else
return false;
}

int main() {
string a,b,c;
getline(cin,a);
getline(cin,b);
getline(cin,c);
for(int i=0;i<a.size();i++) {
if(VowelOrConsonant(a[i]))
cout << "#";
else
cout << a[i];

}
cout << endl;

for(int i=0;i<b.size();i++) {
if(!VowelOrConsonant(b[i]))
cout << "quot;;
else
cout << b[i];
}
cout << endl;

for(int i = 0; i <c.size(); i++)
{
c[i] = toupper(c[i]);
cout<<c[i];
}
return 0;
}

Answer 2

Change a[i]=='a'||'e'...
to (a[i]=='a')||(a[i]=='e')
Same for second if