Submission #4669839

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Source Code Expand

//teja349
#include <bits/stdc++.h>
#include <vector>
#include <set>
#include <map>
#include <string>
#include <cstdio>
#include <cstdlib>
#include <climits>
#include <utility>
#include <algorithm>
#include <cmath>
#include <queue>
#include <stack>
#include <iomanip>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp> 
//setbase - cout << setbase (16); cout << 100 << endl; Prints 64
//setfill -   cout << setfill ('x') << setw (5); cout << 77 << endl; prints xxx77
//setprecision - cout << setprecision (14) << f << endl; Prints x.xxxx
//cout.precision(x)  cout<<fixed<<val;  // prints x digits after decimal in val

using namespace std;
using namespace __gnu_pbds;

#define f(i,a,b) for(i=a;i<b;i++)
#define rep(i,n) f(i,0,n)
#define fd(i,a,b) for(i=a;i>=b;i--)
#define pb push_back
#define mp make_pair
#define vi vector< int >
#define vl vector< ll >
#define ss second
#define ff first
#define ll long long
#define pii pair< int,int >
#define pll pair< ll,ll >
#define sz(a) a.size()
#define inf (1000*1000*1000+5)
#define all(a) a.begin(),a.end()
#define tri pair<int,pii>
#define vii vector<pii>
#define vll vector<pll>
#define viii vector<tri>
#define mod (1000*1000*1000+7)
#define pqueue priority_queue< int >
#define pdqueue priority_queue< int,vi ,greater< int > >
#define flush fflush(stdout) 
#define primeDEN 727999983
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

// find_by_order()  // order_of_key
typedef tree<
int,
null_type,
less<int>,
rb_tree_tag,
tree_order_statistics_node_update>
ordered_set;

int b[1234];
vi vec;
int main(){
    std::ios::sync_with_stdio(false); cin.tie(NULL);
  	int n;
  	cin>>n;
  	int i;
  	f(i,1,n+1){
  		cin>>b[i];
  	}
  	int j,k,flag=0;
  	fd(i,n,1){
  		flag=0;
  		fd(j,i,1){
  			if(b[j]==j){
  				flag=1;
  				vec.pb(j);
  				break;
  			}
  		}
  		if(!flag){
  			cout<<-1<<endl;
  			return 0;
  		}
  		f(k,j,i){
  			b[k]=b[k+1];	
  		}
  	}
  	fd(i,vec.size()-1,0){
  		cout<<vec[i]<<endl;
  	}	

    return 0;   
}

Submission Info

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