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Submission #210548

# Submission time Handle Problem Language Result Execution time Memory
210548 2020-03-17T16:52:12 Z mayhoubsaleh Mountains (NOI20_mountains) C++14
100 / 100
 560 ms 26232 KB 
#include <bits/stdc++.h>
#include <string>
#define ll long long
#define pb push_back
#define IOS ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);


using namespace std;
map<ll,ll>m;
ll ans;
const ll maxn=3e5+100;
ll n,a[maxn];
ll tr[maxn],lft[maxn];
ll cnt=1;
ll sum(ll id){
    ll ret=0;
    for(;id;id-=id&(-id))ret+=tr[id];
    return ret;
}

void add(ll id){
    for(;id<=cnt;id+=id&(-id))tr[id]++;
}
ll qur(ll l,ll r){
    if(r==0)return 0;
    return sum(r)-sum(l-1);
}
int main()
{
    IOS
    cin>>n;
    for(ll i=0;i<n;i++){
        cin>>a[i];
        m[a[i]]=1;
    }

    for(auto &x:m){
        x.second=cnt++;
    }
    for(ll i=0;i<n;i++){
        a[i]=m[a[i]];
        //cout<<a[i]<<' ';
    }
    cnt--;
    for(ll i=0;i<n;i++){
        lft[i]=qur(1,a[i]-1);
        add(a[i]);
        //cout<<lft[i]<<' ';
    }

    for(ll i=0;i<n;i++){
        ll righ=qur(1,a[i]-1)-lft[i];
        ans+=righ*lft[i];
    }
    cout<<ans<<endl;
    return 0;
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 220 ms 26104 KB Output is correct
3 Correct 226 ms 26136 KB Output is correct
4 Correct 218 ms 26104 KB Output is correct
5 Correct 220 ms 26104 KB Output is correct
6 Correct 221 ms 26104 KB Output is correct
7 Correct 221 ms 26232 KB Output is correct
8 Correct 220 ms 26104 KB Output is correct
9 Correct 182 ms 15992 KB Output is correct
10 Correct 182 ms 15992 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 4988 KB Output is correct
2 Correct 34 ms 5112 KB Output is correct
3 Correct 37 ms 5016 KB Output is correct
4 Correct 34 ms 4984 KB Output is correct
5 Correct 33 ms 4984 KB Output is correct
6 Correct 33 ms 4984 KB Output is correct
7 Correct 32 ms 4984 KB Output is correct
8 Correct 26 ms 4984 KB Output is correct
9 Correct 32 ms 4984 KB Output is correct
10 Correct 5 ms 376 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 4988 KB Output is correct
2 Correct 34 ms 5112 KB Output is correct
3 Correct 37 ms 5016 KB Output is correct
4 Correct 34 ms 4984 KB Output is correct
5 Correct 33 ms 4984 KB Output is correct
6 Correct 33 ms 4984 KB Output is correct
7 Correct 32 ms 4984 KB Output is correct
8 Correct 26 ms 4984 KB Output is correct
9 Correct 32 ms 4984 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 66 ms 4988 KB Output is correct
12 Correct 62 ms 4984 KB Output is correct
13 Correct 60 ms 4984 KB Output is correct
14 Correct 61 ms 5048 KB Output is correct
15 Correct 62 ms 4984 KB Output is correct
16 Correct 61 ms 4984 KB Output is correct
17 Correct 62 ms 5112 KB Output is correct
18 Correct 37 ms 4984 KB Output is correct
19 Correct 34 ms 5112 KB Output is correct
20 Correct 5 ms 376 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct

Subtask #5
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 11 ms 1144 KB Output is correct
12 Correct 12 ms 1272 KB Output is correct
13 Correct 12 ms 1272 KB Output is correct
14 Correct 12 ms 1272 KB Output is correct
15 Correct 11 ms 1144 KB Output is correct
16 Correct 11 ms 1148 KB Output is correct
17 Correct 11 ms 1144 KB Output is correct
18 Correct 10 ms 760 KB Output is correct
19 Correct 7 ms 504 KB Output is correct
20 Correct 4 ms 376 KB Output is correct

Subtask #6
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 4988 KB Output is correct
2 Correct 34 ms 5112 KB Output is correct
3 Correct 37 ms 5016 KB Output is correct
4 Correct 34 ms 4984 KB Output is correct
5 Correct 33 ms 4984 KB Output is correct
6 Correct 33 ms 4984 KB Output is correct
7 Correct 32 ms 4984 KB Output is correct
8 Correct 26 ms 4984 KB Output is correct
9 Correct 32 ms 4984 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 66 ms 4988 KB Output is correct
12 Correct 62 ms 4984 KB Output is correct
13 Correct 60 ms 4984 KB Output is correct
14 Correct 61 ms 5048 KB Output is correct
15 Correct 62 ms 4984 KB Output is correct
16 Correct 61 ms 4984 KB Output is correct
17 Correct 62 ms 5112 KB Output is correct
18 Correct 37 ms 4984 KB Output is correct
19 Correct 34 ms 5112 KB Output is correct
20 Correct 5 ms 376 KB Output is correct
21 Correct 284 ms 11768 KB Output is correct
22 Correct 270 ms 11768 KB Output is correct
23 Correct 298 ms 11696 KB Output is correct
24 Correct 265 ms 11768 KB Output is correct
25 Correct 271 ms 11768 KB Output is correct
26 Correct 298 ms 11768 KB Output is correct
27 Correct 261 ms 11772 KB Output is correct
28 Correct 127 ms 11768 KB Output is correct
29 Correct 126 ms 11768 KB Output is correct
30 Correct 5 ms 376 KB Output is correct

Subtask #7
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 220 ms 26104 KB Output is correct
3 Correct 226 ms 26136 KB Output is correct
4 Correct 218 ms 26104 KB Output is correct
5 Correct 220 ms 26104 KB Output is correct
6 Correct 221 ms 26104 KB Output is correct
7 Correct 221 ms 26232 KB Output is correct
8 Correct 220 ms 26104 KB Output is correct
9 Correct 182 ms 15992 KB Output is correct
10 Correct 182 ms 15992 KB Output is correct
11 Correct 36 ms 4988 KB Output is correct
12 Correct 34 ms 5112 KB Output is correct
13 Correct 37 ms 5016 KB Output is correct
14 Correct 34 ms 4984 KB Output is correct
15 Correct 33 ms 4984 KB Output is correct
16 Correct 33 ms 4984 KB Output is correct
17 Correct 32 ms 4984 KB Output is correct
18 Correct 26 ms 4984 KB Output is correct
19 Correct 32 ms 4984 KB Output is correct
20 Correct 5 ms 376 KB Output is correct
21 Correct 66 ms 4988 KB Output is correct
22 Correct 62 ms 4984 KB Output is correct
23 Correct 60 ms 4984 KB Output is correct
24 Correct 61 ms 5048 KB Output is correct
25 Correct 62 ms 4984 KB Output is correct
26 Correct 61 ms 4984 KB Output is correct
27 Correct 62 ms 5112 KB Output is correct
28 Correct 37 ms 4984 KB Output is correct
29 Correct 34 ms 5112 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 5 ms 376 KB Output is correct
32 Correct 5 ms 376 KB Output is correct
33 Correct 5 ms 376 KB Output is correct
34 Correct 5 ms 376 KB Output is correct
35 Correct 5 ms 376 KB Output is correct
36 Correct 5 ms 376 KB Output is correct
37 Correct 5 ms 376 KB Output is correct
38 Correct 5 ms 376 KB Output is correct
39 Correct 5 ms 376 KB Output is correct
40 Correct 5 ms 376 KB Output is correct
41 Correct 11 ms 1144 KB Output is correct
42 Correct 12 ms 1272 KB Output is correct
43 Correct 12 ms 1272 KB Output is correct
44 Correct 12 ms 1272 KB Output is correct
45 Correct 11 ms 1144 KB Output is correct
46 Correct 11 ms 1148 KB Output is correct
47 Correct 11 ms 1144 KB Output is correct
48 Correct 10 ms 760 KB Output is correct
49 Correct 7 ms 504 KB Output is correct
50 Correct 4 ms 376 KB Output is correct
51 Correct 284 ms 11768 KB Output is correct
52 Correct 270 ms 11768 KB Output is correct
53 Correct 298 ms 11696 KB Output is correct
54 Correct 265 ms 11768 KB Output is correct
55 Correct 271 ms 11768 KB Output is correct
56 Correct 298 ms 11768 KB Output is correct
57 Correct 261 ms 11772 KB Output is correct
58 Correct 127 ms 11768 KB Output is correct
59 Correct 126 ms 11768 KB Output is correct
60 Correct 5 ms 376 KB Output is correct
61 Correct 541 ms 26104 KB Output is correct
62 Correct 560 ms 26104 KB Output is correct
63 Correct 547 ms 26104 KB Output is correct
64 Correct 537 ms 26232 KB Output is correct
65 Correct 539 ms 26104 KB Output is correct
66 Correct 548 ms 26104 KB Output is correct
67 Correct 548 ms 26104 KB Output is correct
68 Correct 424 ms 15992 KB Output is correct
69 Correct 342 ms 14200 KB Output is correct
70 Correct 5 ms 376 KB Output is correct