#include <bits/stdc++.h> //Andrei Alexandru a.k.a Sho10
#define ll long long
#define double long double
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#define all(a) (a).begin(), (a).end()
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define pi pair
#define rc(s) return cout<<s,0
#define endl '\n'
#define mod 1000000007
#define PI 3.14159265359
#define MAXN 100005
#define INF 1000000005
#define LINF 1000000000000000005ll
#define CODE_START ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
ll n,a[200005],bit[200005];
void update(ll pos,ll val){
for(;pos<=n;pos+=pos&(-pos)){
bit[pos]+=val;
}
}
ll query(ll pos){
ll res=0;
for(;pos;pos-=pos&(-pos)){
res+=bit[pos];
}
return res;
}
vector<ll>g[200005];
int32_t main(){
CODE_START;
cin>>n;
for(ll i=1;i<=n;i++)
{
cin>>a[i];
g[a[i]].pb(i);
}
for(ll i=1;i<=n;i++)
{
update(i,1ll);
}
priority_queue<ll>q;
ll ans=0;
for(ll i=n;i>=1;i--){
for(auto it : g[i]){
q.push(it);
}
if(q.size()==0){
rc("-1");
}
ll x=q.top();
q.pop();
update(n-x+1,-1);
ans+=query(n-x+1);
}
cout<<ans<<endl;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 2 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 3 |
Correct |
5 ms |
5240 KB |
Output is correct |
| 4 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 5 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 6 |
Correct |
7 ms |
5228 KB |
Output is correct |
| 7 |
Correct |
6 ms |
5240 KB |
Output is correct |
| 8 |
Correct |
5 ms |
5356 KB |
Output is correct |
| 9 |
Correct |
5 ms |
5356 KB |
Output is correct |
| 10 |
Correct |
5 ms |
5356 KB |
Output is correct |
| 11 |
Correct |
6 ms |
5356 KB |
Output is correct |
| 12 |
Correct |
6 ms |
5356 KB |
Output is correct |
| 13 |
Correct |
7 ms |
5228 KB |
Output is correct |
| 14 |
Correct |
5 ms |
5260 KB |
Output is correct |
| 15 |
Correct |
7 ms |
5228 KB |
Output is correct |
| 16 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 17 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 18 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 19 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 20 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 21 |
Correct |
6 ms |
5356 KB |
Output is correct |
| 22 |
Correct |
7 ms |
5228 KB |
Output is correct |
| 23 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 24 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 25 |
Correct |
7 ms |
5228 KB |
Output is correct |
| 26 |
Correct |
7 ms |
5228 KB |
Output is correct |
| 27 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 28 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 29 |
Correct |
7 ms |
5228 KB |
Output is correct |
| 30 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 31 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 32 |
Correct |
5 ms |
5356 KB |
Output is correct |
| 33 |
Correct |
5 ms |
5356 KB |
Output is correct |
| 34 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 35 |
Correct |
6 ms |
5232 KB |
Output is correct |
| 36 |
Correct |
5 ms |
5368 KB |
Output is correct |
| 37 |
Correct |
7 ms |
5356 KB |
Output is correct |
| 38 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 39 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 40 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 41 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 42 |
Correct |
7 ms |
5228 KB |
Output is correct |
| 43 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 44 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 45 |
Correct |
5 ms |
5100 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 2 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 3 |
Correct |
5 ms |
5240 KB |
Output is correct |
| 4 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 5 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 6 |
Correct |
7 ms |
5228 KB |
Output is correct |
| 7 |
Correct |
6 ms |
5240 KB |
Output is correct |
| 8 |
Correct |
5 ms |
5356 KB |
Output is correct |
| 9 |
Correct |
5 ms |
5356 KB |
Output is correct |
| 10 |
Correct |
5 ms |
5356 KB |
Output is correct |
| 11 |
Correct |
6 ms |
5356 KB |
Output is correct |
| 12 |
Correct |
6 ms |
5356 KB |
Output is correct |
| 13 |
Correct |
7 ms |
5228 KB |
Output is correct |
| 14 |
Correct |
5 ms |
5260 KB |
Output is correct |
| 15 |
Correct |
7 ms |
5228 KB |
Output is correct |
| 16 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 17 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 18 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 19 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 20 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 21 |
Correct |
6 ms |
5356 KB |
Output is correct |
| 22 |
Correct |
7 ms |
5228 KB |
Output is correct |
| 23 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 24 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 25 |
Correct |
7 ms |
5228 KB |
Output is correct |
| 26 |
Correct |
7 ms |
5228 KB |
Output is correct |
| 27 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 28 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 29 |
Correct |
7 ms |
5228 KB |
Output is correct |
| 30 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 31 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 32 |
Correct |
5 ms |
5356 KB |
Output is correct |
| 33 |
Correct |
5 ms |
5356 KB |
Output is correct |
| 34 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 35 |
Correct |
6 ms |
5232 KB |
Output is correct |
| 36 |
Correct |
5 ms |
5368 KB |
Output is correct |
| 37 |
Correct |
7 ms |
5356 KB |
Output is correct |
| 38 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 39 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 40 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 41 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 42 |
Correct |
7 ms |
5228 KB |
Output is correct |
| 43 |
Correct |
6 ms |
5228 KB |
Output is correct |
| 44 |
Correct |
4 ms |
5100 KB |
Output is correct |
| 45 |
Correct |
5 ms |
5100 KB |
Output is correct |
| 46 |
Correct |
124 ms |
14436 KB |
Output is correct |
| 47 |
Correct |
121 ms |
14448 KB |
Output is correct |
| 48 |
Correct |
106 ms |
14436 KB |
Output is correct |
| 49 |
Correct |
107 ms |
14564 KB |
Output is correct |
| 50 |
Correct |
122 ms |
14444 KB |
Output is correct |
| 51 |
Correct |
114 ms |
14436 KB |
Output is correct |
| 52 |
Correct |
117 ms |
15724 KB |
Output is correct |
| 53 |
Correct |
129 ms |
15724 KB |
Output is correct |
| 54 |
Correct |
102 ms |
15724 KB |
Output is correct |
| 55 |
Correct |
58 ms |
15852 KB |
Output is correct |
| 56 |
Correct |
76 ms |
15724 KB |
Output is correct |
| 57 |
Correct |
81 ms |
15724 KB |
Output is correct |
| 58 |
Correct |
105 ms |
13784 KB |
Output is correct |
| 59 |
Correct |
105 ms |
13804 KB |
Output is correct |
| 60 |
Correct |
99 ms |
13804 KB |
Output is correct |
| 61 |
Correct |
94 ms |
13804 KB |
Output is correct |
| 62 |
Correct |
72 ms |
13676 KB |
Output is correct |
| 63 |
Correct |
82 ms |
13804 KB |
Output is correct |
| 64 |
Correct |
117 ms |
13676 KB |
Output is correct |
| 65 |
Correct |
118 ms |
13676 KB |
Output is correct |
| 66 |
Correct |
102 ms |
13676 KB |
Output is correct |
| 67 |
Correct |
96 ms |
13676 KB |
Output is correct |
| 68 |
Correct |
105 ms |
13676 KB |
Output is correct |
| 69 |
Correct |
103 ms |
13676 KB |
Output is correct |
| 70 |
Correct |
110 ms |
13928 KB |
Output is correct |
| 71 |
Correct |
111 ms |
13928 KB |
Output is correct |
| 72 |
Correct |
111 ms |
14056 KB |
Output is correct |
| 73 |
Correct |
100 ms |
13928 KB |
Output is correct |
| 74 |
Correct |
71 ms |
13856 KB |
Output is correct |
| 75 |
Correct |
104 ms |
13932 KB |
Output is correct |
| 76 |
Correct |
88 ms |
13552 KB |
Output is correct |
| 77 |
Correct |
65 ms |
13460 KB |
Output is correct |
| 78 |
Correct |
48 ms |
15724 KB |
Output is correct |
| 79 |
Correct |
54 ms |
13804 KB |
Output is correct |
| 80 |
Correct |
97 ms |
13928 KB |
Output is correct |
| 81 |
Correct |
65 ms |
13460 KB |
Output is correct |
| 82 |
Correct |
48 ms |
15724 KB |
Output is correct |
| 83 |
Correct |
56 ms |
13804 KB |
Output is correct |
| 84 |
Correct |
118 ms |
14060 KB |
Output is correct |
| 85 |
Correct |
118 ms |
14060 KB |
Output is correct |
| 86 |
Correct |
118 ms |
14064 KB |
Output is correct |
| 87 |
Correct |
75 ms |
13420 KB |
Output is correct |
| 88 |
Correct |
157 ms |
14064 KB |
Output is correct |
