#include <iostream>
#include <vector>
#include <string>

using namespace std;

int main(){
  cout << endl << " **** Exercise 4.8 ****" << endl<< endl;

  cout << "First we initialise 3 arrays, two of which are equal and a third one which is different..."<< endl;
  size_t sizea1=3,sizea2=3,sizea3=4;
  string a1[]={"abc","123","ABC"},a2[]={"abc","123","ABC"},a3[]={"ijk","uuu","blabla","oops"};

  for(size_t i=0;i!=sizea1;i++){
    cout << "a1["<< i<<"] = " << a1[i]<< endl;
  }
  cout << endl;
  for(size_t i=0;i!=sizea2;i++){
    cout << "a2["<< i<<"] = " << a2[i]<< endl;
  }
  cout << endl;
  for(size_t i=0;i!=sizea3;i++){
    cout << "a3["<< i<<"] = " << a3[i]<< endl;
  }
  cout << endl;

  cout << "We note that actually the array which is different has a different size! So we must include something one more test which is annoying." << endl; 
  
  cout <<"Comparing arrays..."<< endl;
  bool a1a2=true;
  if(sizea1==sizea2){
    for(size_t i=0;i!=sizea1 && a1a2;i++){
      if(a1[i]!=a2[i])
	a1a2=false;
    }
  }
  else
    a1a2=false;

  cout << "Logical result of testing a1 against a2 = " << a1a2 << endl;
  
  bool a1a3=true;
  if(sizea1==sizea3){
    for(size_t i=0;i!=sizea1 && a1a3;i++){
      if(a1[i]!=a3[i])
	a1a3=false;
    }
  }
  else
    a1a3=false;
  cout << "Logical result of testing a1 against a3 = " << a1a3 << endl << endl;

  cout << "Now let's do this with vectors!" << endl;

  vector<string> vec1,vec2,vec3;
  
  vec1.push_back("abc");
  vec1.push_back("123");
  vec1.push_back("ABC");

  vec2.push_back("abc");
  vec2.push_back("123");
  vec2.push_back("ABC");

  vec3.push_back("ijk");
  vec3.push_back("uuu");
  vec3.push_back("blabla");
  vec3.push_back("oops");

  cout << "Logical result of testing vec1 against vec2 = " << (vec1==vec2) << endl;

  cout << "Logical result of testing vec1 against vec3 = " << (vec1==vec3) << endl;
  
  
  
 
}