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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. class A{
  4. public:
  5.     int a;
  6.     string s;
  7. };
  8.  
  9. template <typename T> class myClass {
  10.     vector<T>arr;
  11. public:
  12.     myClass(vector<T> param) : arr(param) {}
  13.     T add() {
  14.         T sum={};
  15.         for(int i=0;i<arr.size();i++){
  16.             // cout<<arr[i]<<"  ";
  17.             sum+=arr[i];
  18.         }
  19.  
  20.         return sum;
  21.     }
  22. };
  23.  
  24. template <> class myClass<A> {
  25.     vector<A>arr;
  26. public:
  27.     myClass(vector<A> param) : arr(param) {}
  28.     A add() {
  29.         A sum={};
  30.         for(int i=0;i<arr.size();i++){
  31.             sum.a+=arr[i].a;
  32.             sum.s+=" "+arr[i].s;
  33.         }
  34.         return sum;
  35.     }
  36. };
  37. int main()
  38. {
  39.     vector<int>v;
  40.     v.push_back(2);
  41.     v.push_back(5);
  42.     myClass<int> obj(v);
  43.  
  44.     int s=obj.add();
  45.     cout<<s<<endl;
  46.  
  47.     vector<A>vOfA;
  48.     vOfA.push_back({3, "abc"});
  49.     vOfA.push_back({5, "xyz"});
  50.  
  51.     myClass<A> objOfA(vOfA);
  52.     A ss=objOfA.add();
  53.     cout<<ss.a<<"  "<<ss.s<<endl;
  54. }
Success #stdin #stdout 0s 5316KB
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Standard input is empty
stdout
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7
8   abc xyz
https://ideone.com/oSgW4Q
language:
C++ (gcc 8.3)
created:
1 hour ago
visibility:
public

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