Çàäà÷à . Ñîðòèðîâêà ïî ïîñëåäíåé öèôðå

#include <algorithm>
#include <iostream>
#include <vector>
using namespace std;


bool cmp(int first, int second) {
    
   

}

int main() {

int N;

cin >> N;
vector<int> A (N);

    for(int i = 0; i < N; i++)
        cin>>A[i];
		        
    sort(A.begin(), A.end(), cmp );
  
    for(int i = 0;i< N; i ++)
      cout<<A[i]<<" ";

    
}