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- #include<bits/stdc++.h>
- using namespace std;
- #define ll long long
- #define ull unsigned long long
- #define nl '\n'
- #define sz(x) int(x.size())
- #define all(x) x.begin(),x.end()
- #define rall(s) s.rbegin(), s.rend()
- #define getline(s) getline(cin>>ws,s)
- #define ceill(n, m) (((n) / (m)) + ((n) % (m) ? 1 : 0))
- #define pi 3.141592653589793
- /*
- ███╗░░██╗███████╗░██████╗░███╗░░░███╗
- ████╗░██║██╔════╝██╔════╝░████╗░████║
- ██╔██╗██║█████╗░░██║░░██╗░██╔████╔██║
- ██║╚████║██╔══╝░░██║░░╚██╗██║╚██╔╝██║
- ██║░╚███║███████╗╚██████╔╝██║░╚═╝░██║
- ╚═╝░░╚══╝╚══════╝░╚═════╝░╚═╝░░░░░╚═╝
- */
- void Fast_IO(){
- ios_base::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr);
- // freopen("filename.in", "r", stdin), freopen("filename.txt", "w", stdout);
- #ifndef ONLINE_JUDGE
- freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout);
- #endif
- }
- bool comp(pair<ll,ll>&a,pair<ll,ll>&b){
- if(a.first==b.first) return a.second<b.second;
- return a.first<b.first;
- }
- void solve(){
- ll n; cin>>n;
- vector<pair<ll,ll>>v;
- for(int i=1; i<=n; i++){
- ll x; cin>>x;
- v.push_back({x,i});
- }
- sort(all(v),comp);
- vector<ll>res;
- while(1){
- auto maxe = *max_element(all(v));
- if(maxe.first==0) break;
- for(int i=0; i<n; i++){
- if(v[i].first==maxe.first){
- res.push_back(v[i].second);
- v[i].first--;
- break;
- }
- }
- }
- for(int i=1; i<sz(res); i++){
- if(res[i] == res[i-1]) return void(cout<<"-1");
- }
- for(auto&i:res) cout<<i<<' ';
- }
- int main(){
- Fast_IO();
- int t =1;
- //cin>>t;
- while(t--){
- solve();
- }
- return 0;
- }
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