Codeforces 1165 B. Polycarp Training solution

Solve in C++:

///**********ALLAH IS ALMIGHTY************///
     ///AH Tonmoy
    ///Department of CSE,23rd batch
    ///Islamic University,Bangladesh

1. #include<iostream>
2. #include<algorithm>
3. using namespace std;
4. int main()
5. {
6. int n,i,a[200900],c=0;
7. cin>>n;
8. for(i=0; i<n; i++)
9. {
10. cin>>a[i];
11. }
12. sort(a,a+n);
13. for (i=0;i<n;i++)
14. {
15. if(a[i]>c)
16. {
17. c++;
18. }
19. }
20. cout<<c<<endl;
21. }