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Submission #386903

# Submission time Handle Problem Language Result Execution time Memory
386903 2021-04-07T15:49:29 Z fadi57 Mountains (NOI20_mountains) C++14
100 / 100
 1022 ms 35820 KB 
#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
const ll mx=4e5+20;
const int mod= 1e9+7 ;
const ll inf=1e9+5;

//***while there is life there is hope
int n;

int arr[mx*4];



map<ll,int>mp;

void compres(){
int cnt=0;
for(auto &it:mp){
        //cout<<it.first;
    it.second=cnt;
    cnt++;
}

}
void update(int node,int st,int en,int pos){


if(st==en){
    arr[node]++;
    return;
}
int mid=(st+en)/2;

if(pos<=mid){
    update(node*2,st,mid,pos);
}else{
 update(node*2+1,mid+1,en,pos);
 }
 arr[node]=arr[node*2]+arr[node*2+1];
 return ;



}
int query(int node,int st,int en,int l,int r){

if(st>r||en<l){return 0;}

if(st>=l&&en<=r){return arr[node];}
int mid=(st+en)/2;
return query(node*2,st,mid,l,r)+query(node*2+1,mid+1,en,l,r);


}
int l[mx];int r[mx];
int main() {
cin>>n;
vector<ll>v(n);
for(int i=0;i<n;i++){


   cin>>v[i];
  mp[v[i]];
}
compres();
for(int i=0;i<n;i++){


    v[i]=mp[v[i]];
   // cout<<v[i];
}

for(int i=0;i<n;i++){
    l[i]=query(1,0,mx,0,v[i]-1);
   // cout<<l[i]<<" ";
    update(1,0,mx,v[i]);
}
memset(arr,0,sizeof(arr));ll ans=0;
for(int i=n-1;i>=0;i--){
    r[i]=query(1,0,mx,0,v[i]-1);
    //cout<<r[i]<<" ";
    update(1,0,mx,v[i]);
    ans+=1LL*r[i]*l[i];
}cout<<ans;

}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 6636 KB Output is correct
2 Correct 536 ms 34040 KB Output is correct
3 Correct 514 ms 34176 KB Output is correct
4 Correct 530 ms 34032 KB Output is correct
5 Correct 517 ms 34028 KB Output is correct
6 Correct 530 ms 34028 KB Output is correct
7 Correct 514 ms 34052 KB Output is correct
8 Correct 510 ms 33644 KB Output is correct
9 Correct 481 ms 24556 KB Output is correct
10 Correct 481 ms 24684 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 190 ms 11836 KB Output is correct
2 Correct 182 ms 11884 KB Output is correct
3 Correct 181 ms 12012 KB Output is correct
4 Correct 181 ms 11884 KB Output is correct
5 Correct 188 ms 11884 KB Output is correct
6 Correct 180 ms 11884 KB Output is correct
7 Correct 180 ms 12012 KB Output is correct
8 Correct 173 ms 12012 KB Output is correct
9 Correct 172 ms 11904 KB Output is correct
10 Correct 4 ms 6636 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 190 ms 11836 KB Output is correct
2 Correct 182 ms 11884 KB Output is correct
3 Correct 181 ms 12012 KB Output is correct
4 Correct 181 ms 11884 KB Output is correct
5 Correct 188 ms 11884 KB Output is correct
6 Correct 180 ms 11884 KB Output is correct
7 Correct 180 ms 12012 KB Output is correct
8 Correct 173 ms 12012 KB Output is correct
9 Correct 172 ms 11904 KB Output is correct
10 Correct 4 ms 6636 KB Output is correct
11 Correct 275 ms 12140 KB Output is correct
12 Correct 272 ms 12268 KB Output is correct
13 Correct 270 ms 12140 KB Output is correct
14 Correct 274 ms 12416 KB Output is correct
15 Correct 270 ms 12140 KB Output is correct
16 Correct 269 ms 12140 KB Output is correct
17 Correct 274 ms 12268 KB Output is correct
18 Correct 218 ms 12268 KB Output is correct
19 Correct 210 ms 12192 KB Output is correct
20 Correct 4 ms 6636 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 6636 KB Output is correct
2 Correct 6 ms 6636 KB Output is correct
3 Correct 5 ms 6636 KB Output is correct
4 Correct 5 ms 6636 KB Output is correct
5 Correct 5 ms 6636 KB Output is correct
6 Correct 5 ms 6636 KB Output is correct
7 Correct 5 ms 6636 KB Output is correct
8 Correct 5 ms 6636 KB Output is correct
9 Correct 5 ms 6636 KB Output is correct
10 Correct 4 ms 6636 KB Output is correct

Subtask #5
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 6636 KB Output is correct
2 Correct 6 ms 6636 KB Output is correct
3 Correct 5 ms 6636 KB Output is correct
4 Correct 5 ms 6636 KB Output is correct
5 Correct 5 ms 6636 KB Output is correct
6 Correct 5 ms 6636 KB Output is correct
7 Correct 5 ms 6636 KB Output is correct
8 Correct 5 ms 6636 KB Output is correct
9 Correct 5 ms 6636 KB Output is correct
10 Correct 4 ms 6636 KB Output is correct
11 Correct 24 ms 7532 KB Output is correct
12 Correct 24 ms 7532 KB Output is correct
13 Correct 24 ms 7532 KB Output is correct
14 Correct 24 ms 7532 KB Output is correct
15 Correct 24 ms 7532 KB Output is correct
16 Correct 25 ms 7532 KB Output is correct
17 Correct 24 ms 7532 KB Output is correct
18 Correct 22 ms 7148 KB Output is correct
19 Correct 15 ms 6764 KB Output is correct
20 Correct 5 ms 6636 KB Output is correct

Subtask #6
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 190 ms 11836 KB Output is correct
2 Correct 182 ms 11884 KB Output is correct
3 Correct 181 ms 12012 KB Output is correct
4 Correct 181 ms 11884 KB Output is correct
5 Correct 188 ms 11884 KB Output is correct
6 Correct 180 ms 11884 KB Output is correct
7 Correct 180 ms 12012 KB Output is correct
8 Correct 173 ms 12012 KB Output is correct
9 Correct 172 ms 11904 KB Output is correct
10 Correct 4 ms 6636 KB Output is correct
11 Correct 275 ms 12140 KB Output is correct
12 Correct 272 ms 12268 KB Output is correct
13 Correct 270 ms 12140 KB Output is correct
14 Correct 274 ms 12416 KB Output is correct
15 Correct 270 ms 12140 KB Output is correct
16 Correct 269 ms 12140 KB Output is correct
17 Correct 274 ms 12268 KB Output is correct
18 Correct 218 ms 12268 KB Output is correct
19 Correct 210 ms 12192 KB Output is correct
20 Correct 4 ms 6636 KB Output is correct
21 Correct 588 ms 19052 KB Output is correct
22 Correct 605 ms 19052 KB Output is correct
23 Correct 573 ms 18924 KB Output is correct
24 Correct 608 ms 19032 KB Output is correct
25 Correct 606 ms 18924 KB Output is correct
26 Correct 569 ms 19052 KB Output is correct
27 Correct 576 ms 18924 KB Output is correct
28 Correct 327 ms 19052 KB Output is correct
29 Correct 329 ms 18924 KB Output is correct
30 Correct 4 ms 6636 KB Output is correct

Subtask #7
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 6636 KB Output is correct
2 Correct 536 ms 34040 KB Output is correct
3 Correct 514 ms 34176 KB Output is correct
4 Correct 530 ms 34032 KB Output is correct
5 Correct 517 ms 34028 KB Output is correct
6 Correct 530 ms 34028 KB Output is correct
7 Correct 514 ms 34052 KB Output is correct
8 Correct 510 ms 33644 KB Output is correct
9 Correct 481 ms 24556 KB Output is correct
10 Correct 481 ms 24684 KB Output is correct
11 Correct 190 ms 11836 KB Output is correct
12 Correct 182 ms 11884 KB Output is correct
13 Correct 181 ms 12012 KB Output is correct
14 Correct 181 ms 11884 KB Output is correct
15 Correct 188 ms 11884 KB Output is correct
16 Correct 180 ms 11884 KB Output is correct
17 Correct 180 ms 12012 KB Output is correct
18 Correct 173 ms 12012 KB Output is correct
19 Correct 172 ms 11904 KB Output is correct
20 Correct 4 ms 6636 KB Output is correct
21 Correct 275 ms 12140 KB Output is correct
22 Correct 272 ms 12268 KB Output is correct
23 Correct 270 ms 12140 KB Output is correct
24 Correct 274 ms 12416 KB Output is correct
25 Correct 270 ms 12140 KB Output is correct
26 Correct 269 ms 12140 KB Output is correct
27 Correct 274 ms 12268 KB Output is correct
28 Correct 218 ms 12268 KB Output is correct
29 Correct 210 ms 12192 KB Output is correct
30 Correct 4 ms 6636 KB Output is correct
31 Correct 5 ms 6636 KB Output is correct
32 Correct 6 ms 6636 KB Output is correct
33 Correct 5 ms 6636 KB Output is correct
34 Correct 5 ms 6636 KB Output is correct
35 Correct 5 ms 6636 KB Output is correct
36 Correct 5 ms 6636 KB Output is correct
37 Correct 5 ms 6636 KB Output is correct
38 Correct 5 ms 6636 KB Output is correct
39 Correct 5 ms 6636 KB Output is correct
40 Correct 4 ms 6636 KB Output is correct
41 Correct 24 ms 7532 KB Output is correct
42 Correct 24 ms 7532 KB Output is correct
43 Correct 24 ms 7532 KB Output is correct
44 Correct 24 ms 7532 KB Output is correct
45 Correct 24 ms 7532 KB Output is correct
46 Correct 25 ms 7532 KB Output is correct
47 Correct 24 ms 7532 KB Output is correct
48 Correct 22 ms 7148 KB Output is correct
49 Correct 15 ms 6764 KB Output is correct
50 Correct 5 ms 6636 KB Output is correct
51 Correct 588 ms 19052 KB Output is correct
52 Correct 605 ms 19052 KB Output is correct
53 Correct 573 ms 18924 KB Output is correct
54 Correct 608 ms 19032 KB Output is correct
55 Correct 606 ms 18924 KB Output is correct
56 Correct 569 ms 19052 KB Output is correct
57 Correct 576 ms 18924 KB Output is correct
58 Correct 327 ms 19052 KB Output is correct
59 Correct 329 ms 18924 KB Output is correct
60 Correct 4 ms 6636 KB Output is correct
61 Correct 992 ms 35740 KB Output is correct
62 Correct 1000 ms 35564 KB Output is correct
63 Correct 972 ms 35564 KB Output is correct
64 Correct 1022 ms 35692 KB Output is correct
65 Correct 970 ms 35644 KB Output is correct
66 Correct 973 ms 35820 KB Output is correct
67 Correct 1006 ms 35820 KB Output is correct
68 Correct 796 ms 26604 KB Output is correct
69 Correct 649 ms 21228 KB Output is correct
70 Correct 4 ms 6636 KB Output is correct