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- #include <iostream>
- using namespace std;
- int main(){
- int n, k, res=0;
- cin>>n>>k;
- unsigned long long int display[k], message[n];
- for(int i=0; i<n; i++){
- cin>>message[i];
- }
- for(int i=0; i<k; i++){
- display[i] = 0;
- }
- for(int i=0; i<n; i++){
- int flag = 0;
- for(int j=0; j<k; j++){
- if(display[j] == message[i]){
- flag = 1;
- break;
- }
- }
- if(flag == 0){
- for(int j=k-1; j>0; j--){
- display[j] = display[j-1];
- }
- display[0] = message[i];
- }
- /**for(int j=0; j<k; j++){
- cout<<display[j]<<" ";
- }
- cout<<endl;**/
- }
- for(int i=0; i<k; i++){
- if(display[i] != 0){
- res++;
- }
- else{
- break;
- }
- }
- cout<<res<<endl;
- for(int i=0; i<res-1; i++){
- cout<<display[i]<<" ";
- }
- cout<<display[res-1];
- return 0;
- }
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