이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include<bits/stdc++.h>
using namespace std;
int main(){
ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
int n, k;
cin >> n >> k;
int a[n + 1];
for(int i = 1; i <= n; i++){
cin >> a[i];
}
sort(a + 1, a + n + 1);
reverse(a + 1 + n - k, a + n + 1);
int ans = 0;
for(int i = n; i >= 1; i--){
ans += (a[i] > ans);
}
if(ans != k){
return cout << "-1", 0;
}
for(int i = 1; i <= n; i++){
cout << a[i] << " ";
}
}
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