Can anyone guide me in solving this problem?

Question

Write a program that reads text from the input, prints all matches to the following pattern (1) <= n in the output:
a𝑏 𝑏…...𝑏c
⏟
n repetition ( b repeated n times)

Input example:

abbbcabababxyz
abaxavabaabcabbc

Output example:
abbbbc
abc
abbc

Answer 1

#include <iostream>
using namespace std;

void printpatt(string);

int main()
{
string str1,str2;
getline(cin,str1);
getline(cin,str2);
printpatt(str1);
printpatt(str2);
return 0;
}

void printpatt(string str)
{
int i=0;
while(i<(str.length()-1))
{
string temp="";
if(str[i]=='a' && str[i+1]=='b')
{
temp+=str[i];
temp+=str[i+1];
i+=2;
while(str[i]=='b' && i<str.length())
{
temp+=str[i];
i++;
}
if(i<str.length())
if(str[i]=='c')
{
temp+=str[i];
cout<<temp<<"\n";
}
}
i++;
}
}

//------------------------------------------------------------
//try this

Answer 2

Good question.
In that case, we can use a linked list. Declare a constant term which when entered as input, we will stop taking input, we can implement this using while loop, and break out of loop when the stopping constant is entered by the user. By doing this we create a linked list of all inputs, then we just traverse through the list and check for the substrings.
Hope this clears you doubt.

Answer 3

Manish Yadav thank you very much for your help,that's a big help to me!Now a question! If I want to make the same program for multiple inputs on multiple lines whose The number of input lines is not given in advance.What changes should I make to it?

Answer 4

May I see that problem?
Please post the exact problem statement.
How does the computer know when to stop taking input? It's either a specific character/constant is given to type when user don't want to input more or the input will be timed i.e. if user doesn't enter input in given time frame the program will automatically stop taking input.

Answer 5

how many input strings are allowed?

Answer 6

Manish Yadav two string

Answer 7

Manish Yadav How to solve this problem without entering a specified constant from the input? The problem is that this constant is not necessarily entered by the input.

Answer 8

Manish Yadav Suppose, for example, a user wants to enter three lines
After entering the third line, hit enter
Then ctrl + z and enter again
Here the program must understand that it must start processing
So how do we understand each other?
while (getline (cin, line));
When eof is entered, the end of the line is actually poured into the getline (which is then poured into the line) and the phrase inside while while becomes wrong (becomes zero) and the iteration loop ends.

I wrote the following code to implement it in main, but apparently there is a problem in implementing it, because nothing is displayed in the output!
Do you know what the problem is?
Int main()
{
string a[20];
int i=0;
while (getline(cin,a[i]))i++;
for(int j=0;j<i;j++)
{
printpatt(a[j]);
}
return 0;
}

Answer 9

Manish Yadav There seems to be a problem with your program. It does not accept all input values.