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  1. #include<iostream>
  2.  using namespace std;
  3.  class polynomial;
  4.  class term
  5.  {
  6.  private:
  7.  friend class polynomial;
  8.  float coef;
  9.  int exp;
  10.  };
  11.  class polynomial
  12.  {
  13.  term *termarry;
  14.  int capacity,terms;
  15.  public:
  16.  polynomial();
  17.  void display(int);
  18.  void add(polynomial);
  19.  void newterm(float,int);
  20.  };
  21.  polynomial::polynomial()
  22.  {
  23.  capacity=1;
  24.  terms=0;
  25.  termarry=new term[capacity];
  26.  }
  27.  void polynomial::newterm(float coef,int ex)
  28.  {
  29.  if(terms==capacity)
  30.  {
  31.  capacity*=2;
  32.  term *temp=new term[capacity];
  33.  copy(termarry,termarry+terms,temp);
  34.  termarry=temp;
  35.  delete temp;
  36.  }
  37.  termarry[terms].coef=coef;
  38.  termarry[terms++].exp=ex;
  39.  }
  40.  void polynomial:: add(polynomial b)
  41.  {
  42.  polynomial c;
  43.  int apos=0,bpos=0,cpos=0;
  44.  if(termarry[apos].exp==termarry[bpos].exp)
  45.  {
  46.  float t=(termarry[apos].coef)+(termarry[bpos].coef);
  47.  c.newterm(t,termarry[apos].exp);
  48.  apos++; bpos++;cpos++;
  49.  }
  50.  else if(termarry[apos].exp<b.termarry[bpos].exp)
  51.  {
  52.  c.newterm(b.termarry[bpos].coef,b.termarry[bpos].exp);
  53.  bpos++;cpos++;
  54.  }
  55.  else
  56.  {
  57.  c.newterm(termarry[apos].coef,termarry[apos].exp);
  58.  apos++;
  59.  cpos++;
  60.  }
  61.  for(;apos<terms;apos++)
  62.  {
  63.  c.newterm(termarry[apos].coef,termarry[apos].exp);
  64.  cpos++;
  65.  }
  66.  for(;bpos<b.terms;bpos++)
  67.  {
  68.  c.newterm(b.termarry[bpos].coef,b.termarry[bpos].exp);
  69.  cpos++;
  70.  }
  71.  c.display(cpos);
  72.  }
  73.  void polynomial::display(int pos)
  74.  {
  75.  int i;
  76.  for(i=0;i<pos;i++)
  77.  {
  78.  cout<<termarry[i].coef<<" "<<termarry[i].exp<<"+";
  79.  }
  80.  }
  81.  
  82.  int main()
  83.  {
  84.  polynomial a,b;
  85.  float coef1,coef2;
  86.  int e1=0,e2=0,l1,l2;
  87.  cout<<"Enter lowest deg: ";
  88.  cin>>l1;
  89.  cout<<"\nEnter first polynomial: ";
  90.  while(1)
  91.  {
  92.  cin>>coef1>>e1;
  93.  a.newterm(coef1,e1);
  94.  if(e1==l1)
  95.  break;
  96.  }
  97.  cout<<"Enter lowest deg: ";
  98.  cin>>l2;
  99.  cout<<"\nEnter second polynomial: ";
  100.  while(1)
  101.  {
  102.  cin>>coef2>>e2;
  103.  b.newterm(coef2,e2);
  104.  if(e2==l2)
  105.  break;
  106.  }
  107.  cout<<"\nPolynomial after addition: \n";
  108.  a.add(b);
  109.  return 0;
  110.  }
Success #stdin #stdout 0s 2988KB
comments (?)
stdin
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0
4 2
5 1
2 0
0
1 2
2 1
3 0
stdout
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Enter lowest deg: 
Enter first polynomial: Enter lowest deg: 
Enter second polynomial: 
Polynomial after addition: 
0 2+2 1+3 0+2 1+3 0+
https://ideone.com/cvSx7N
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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