#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int, int>
#define ull unsigned ll
#define f first
#define s second
#define ALL(x) x.begin(),x.end()
#define SZ(x) (int)x.size()
#define SQ(x) (x)*(x)
#define MN(a,b) a = min(a,(__typeof__(a))(b))
#define MX(a,b) a = max(a,(__typeof__(a))(b))
#define pb push_back
#define SORT_UNIQUE(c) (sort(c.begin(),c.end()), c.resize(distance(c.begin(),unique(c.begin(),c.end()))))
#ifdef BALBIT
#define IOS()
#define bug(...) fprintf(stderr,"#%d (%s) = ",__LINE__,#__VA_ARGS__),_do(__VA_ARGS__);
template<typename T> void _do(T &&x){cerr<<x<<endl;}
template<typename T, typename ...S> void _do(T &&x, S &&...y){cerr<<x<<", ";_do(y...);}
#else
#define IOS() ios_base::sync_with_stdio(0);cin.tie(0);
#define endl '\n'
#define bug(...)
#endif
const int iinf = 1<<29;
const ll inf = 1ll<<60;
const ll mod = 1e9+7;
void GG(){cout<<"-1\n"; exit(0);}
ll mpow(ll a, ll n, ll mo = mod){ // a^n % mod
ll re=1;
while (n>0){
if (n&1) re = re*a %mo;
a = a*a %mo;
n>>=1;
}
return re;
}
ll inv (ll b, ll mo = mod){
if (b==1) return b;
return (mo-mo/b) * inv(mo%b) % mo;
}
const int maxn = 3e5+5;
signed main(){
IOS();
int n; cin>>n;
vector<int> nof(n*2+1);
vector<int> a(n);
for (int i = 0; i<n; i++) {
cin>>a[i]; nof[a[i]] ++;
}
set<int> p;
for (int i = 1; i<=2*n-1; i++) {
if (nof[i] == 0) p.insert(i);
}
vector<int> b;
for (int i = n-2; i>=0; i--) {
nof[a[i+1]] --;
if (nof[a[i+1]] == 0) {
p.insert(a[i+1]);
}
if (a[i+1] > a[i]) {
b.pb(*(p.rbegin())); p.erase(*(p.rbegin()));
b.pb(*(p.rbegin())); p.erase(*(p.rbegin()));
}
if (a[i+1] < a[i]) {
b.pb(*(p.begin())); p.erase(*(p.begin()));
b.pb(*(p.begin())); p.erase(*(p.begin()));
}
if (a[i+1] == a[i]) {
b.pb(*(p.rbegin())); p.erase(*(p.rbegin()));
b.pb(*(p.begin())); p.erase(*(p.begin()));
}
}
b.pb(a[0]);
for (int i = SZ(b)-1; i>=0; --i) {
cout<<b[i]<<' ';
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
5 ms |
376 KB |
Output isn't correct |
2 |
Incorrect |
5 ms |
376 KB |
Output isn't correct |
3 |
Correct |
5 ms |
376 KB |
Output is correct |
4 |
Incorrect |
5 ms |
380 KB |
Output isn't correct |
5 |
Incorrect |
5 ms |
376 KB |
Output isn't correct |
6 |
Correct |
5 ms |
376 KB |
Output is correct |
7 |
Incorrect |
5 ms |
376 KB |
Output isn't correct |
8 |
Incorrect |
5 ms |
376 KB |
Output isn't correct |
9 |
Incorrect |
5 ms |
376 KB |
Output isn't correct |
10 |
Incorrect |
5 ms |
376 KB |
Output isn't correct |
11 |
Incorrect |
6 ms |
352 KB |
Output isn't correct |
12 |
Incorrect |
5 ms |
376 KB |
Output isn't correct |
13 |
Incorrect |
5 ms |
504 KB |
Output isn't correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
7 ms |
632 KB |
Output isn't correct |
2 |
Incorrect |
8 ms |
764 KB |
Output isn't correct |
3 |
Incorrect |
11 ms |
1400 KB |
Output isn't correct |
4 |
Incorrect |
17 ms |
2424 KB |
Output isn't correct |
5 |
Incorrect |
32 ms |
4600 KB |
Output isn't correct |
6 |
Incorrect |
65 ms |
8440 KB |
Output isn't correct |
7 |
Incorrect |
102 ms |
12908 KB |
Output isn't correct |