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  1. #include<iostream>
  2. #include<list>
  3. #include<algorithm>
  4. #include<vector>
  5.  
  6.  
  7. using namespace std;
  8.  
  9. class student
  10. {
  11.     public:
  12.     string name;
  13.     int roll_number;
  14.  
  15.     student(string n,int rn)
  16.     {
  17.         name=n;
  18.         roll_number=rn;
  19.     }
  20. };
  21. bool operator==(const student& lhs, const student& rhs)
  22. {
  23.     return lhs.name == rhs.name;
  24. }
  25.  
  26.  
  27. void display(list<student> &s)
  28. {
  29.     list<student> :: iterator p;
  30.     for(p=s.begin();p!=s.end();p++)
  31.     cout<<p->name<<" "<<p->roll_number<<endl;
  32. }
  33. int main()
  34. {
  35.     student s1("J",63),s2("P",29),s3("M",12),s4("S",71),s5("R",04);
  36.     list<student> student_list;
  37.  
  38.     student_list.push_back(s1);
  39.     student_list.push_back(s2);
  40.     student_list.push_back(s3);
  41.     student_list.push_back(s4);
  42.     student_list.push_back(s5);
  43.  
  44.    display(student_list);
  45.  
  46.    list<student> :: iterator q;
  47.    string temp;
  48.     list<student> :: iterator s,e;
  49.     s=student_list.begin();
  50.     e=student_list.end();
  51. //Accepting name of the student from the user to display roll number of it.
  52.  
  53.    cout<<"Please Enter the name of student:"<<endl;
  54.    cin>>temp;
  55.  
  56.  
  57.    q=find(s, e, student(temp, 0));
  58.  
  59.    cout<<"The number is "<<q->roll_number<<endl;
  60.     return 0;
  61. }
  62.  
Success #stdin #stdout 0s 3036KB
comments (?)
stdin
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S
stdout
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J 63
P 29
M 12
S 71
R 4
Please Enter the name of student:
The number is 71
https://ideone.com/DLLNkV
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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