fork download
copy 
  1. #include <iostream>
  2. #include <fstream>
  3. #include <string>
  4. #include <cstring>
  5. #include <iomanip>
  6. #include <vector>
  7. using namespace std;
  8.  
  9. int main() {
  10.     string input_string;
  11.     //char char_string[20];
  12.     int counter=0;
  13.  
  14.     cout << "type in some input text:$" << endl;
  15.     cin >> /*setw(19) >>*/ input_string;
  16.     cout <<"sizeof(input_string)="<<sizeof(input_string)<<endl;
  17.     cout <<"input_string.size()="<<input_string.size()<<endl;
  18.  
  19.     //strncpy(char_string, input_string.c_str(), sizeof(char_string));
  20.     //char_string[sizeof(char_string)-1]=0;
  21.     //cout << strlen(char_string)<<endl; 
  22.     //if (strlen(char_string)<input_string.size()) 
  23.     //    cout << "Input string was cut: only the first "<<strlen(char_string)<<" chars ar considered"<<endl; 
  24.  
  25.     vector<char>char_string(input_string.begin(), input_string.end());
  26.  
  27.     for (int i = 0;  i < input_string.size(); i++)  // instead of sizeof(input_string)
  28.     {
  29.         if(char_string[i]=='a' || char_string[i]=='b'){
  30.             switch(char_string[i])
  31.             {
  32.              case 'a' :
  33.                  counter++;
  34.                  break;              
  35.              case 'b' :
  36.                  if(counter==1){
  37.                      counter=0;
  38.                  }               
  39.                  break;
  40.             }
  41.          }
  42.          else {
  43.          	counter=0;
  44.          	break;
  45.          }
  46.  
  47.      }
  48.  
  49.      if(counter>=2){
  50.         cout << "String accepted" << endl;
  51.      }
  52.      else{
  53.         cout << "String not accepted" << endl;
  54.      }
  55. }
Success #stdin #stdout 0s 4224KB
comments (?)
stdin
copy 
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbaab
stdout
copy 
type in some input text:$
sizeof(input_string)=32
input_string.size()=34
String accepted
https://ideone.com/owptaP
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!