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답안 #285473

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
285473 2020-08-29T06:49:20 Z keta_tsimakuridze Mountains (NOI20_mountains) C++14
100 / 100
 557 ms 14864 KB 
#include<bits/stdc++.h>
using namespace std;
const int N=3e5+5;
long long tree[N],h[N],ans,b[N],k,i,bef,n,ind[N];
pair<long long,long long>a[N];
void update(int ind,int val){
           
           for(ind;ind<=i;ind+=ind&(-ind)){
                      tree[ind]+=val;
           }
}
int getans(int ind){
           int pas=0;
           for(ind;ind>=1;ind-=ind&(-ind)){
                     pas+=tree[ind]; 
           }
           return pas;
}
int main(){
           cin>>n; 
           for(k=1;k<=n;k++){
                      cin>>h[k];
                      a[k].first=h[k];
                      a[k].second=k;
           }
           sort(a+1,a+n+1); bef=-1;
           for(k=1;k<=n;k++){
                      if(a[k].first!=bef){
                          bef=a[k].first;
                          i++;
                      }
                      ind[a[k].second]=i;
           }
           for(k=1;k<=n;k++){ 
                      update(ind[k],1);
                     if(ind[k]!=1) b[k]=getans(ind[k]-1);
                    // cout<<k<<" "<<b[k]<<endl;
           }
            for(k=1;k<=n;k++){
                      update(ind[k],-1);
           }
           for(k=n;k>=1;k--){
                      update(ind[k],1);
                      if(ind[k]!=1)ans+=b[k]*(getans(ind[k]-1));
           }
           cout<<ans;
           
           
}

Compilation message

Mountains.cpp: In function 'void update(int, int)':
Mountains.cpp:8:16: warning: statement has no effect [-Wunused-value]
    8 |            for(ind;ind<=i;ind+=ind&(-ind)){
      |                ^~~
Mountains.cpp: In function 'int getans(int)':
Mountains.cpp:14:16: warning: statement has no effect [-Wunused-value]
   14 |            for(ind;ind>=1;ind-=ind&(-ind)){
      |                ^~~

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 483 ms 14620 KB Output is correct
3 Correct 477 ms 14712 KB Output is correct
4 Correct 484 ms 14712 KB Output is correct
5 Correct 484 ms 14584 KB Output is correct
6 Correct 479 ms 14712 KB Output is correct
7 Correct 493 ms 14864 KB Output is correct
8 Correct 498 ms 14684 KB Output is correct
9 Correct 483 ms 13560 KB Output is correct
10 Correct 487 ms 13560 KB Output is correct

Subtask #2
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 123 ms 12280 KB Output is correct
2 Correct 124 ms 12412 KB Output is correct
3 Correct 121 ms 12256 KB Output is correct
4 Correct 118 ms 12280 KB Output is correct
5 Correct 122 ms 12408 KB Output is correct
6 Correct 125 ms 12280 KB Output is correct
7 Correct 121 ms 12280 KB Output is correct
8 Correct 98 ms 11128 KB Output is correct
9 Correct 97 ms 11128 KB Output is correct
10 Correct 1 ms 384 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 123 ms 12280 KB Output is correct
2 Correct 124 ms 12412 KB Output is correct
3 Correct 121 ms 12256 KB Output is correct
4 Correct 118 ms 12280 KB Output is correct
5 Correct 122 ms 12408 KB Output is correct
6 Correct 125 ms 12280 KB Output is correct
7 Correct 121 ms 12280 KB Output is correct
8 Correct 98 ms 11128 KB Output is correct
9 Correct 97 ms 11128 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 155 ms 12280 KB Output is correct
12 Correct 154 ms 12280 KB Output is correct
13 Correct 155 ms 12280 KB Output is correct
14 Correct 156 ms 12408 KB Output is correct
15 Correct 154 ms 12408 KB Output is correct
16 Correct 156 ms 12280 KB Output is correct
17 Correct 156 ms 12408 KB Output is correct
18 Correct 124 ms 12284 KB Output is correct
19 Correct 124 ms 12280 KB Output is correct
20 Correct 0 ms 384 KB Output is correct

Subtask #4
36.0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct

Subtask #5
28.0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 17 ms 1068 KB Output is correct
12 Correct 17 ms 1024 KB Output is correct
13 Correct 17 ms 1024 KB Output is correct
14 Correct 18 ms 1024 KB Output is correct
15 Correct 18 ms 1024 KB Output is correct
16 Correct 18 ms 1024 KB Output is correct
17 Correct 18 ms 1024 KB Output is correct
18 Correct 18 ms 1016 KB Output is correct
19 Correct 6 ms 896 KB Output is correct
20 Correct 1 ms 384 KB Output is correct

Subtask #6
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 123 ms 12280 KB Output is correct
2 Correct 124 ms 12412 KB Output is correct
3 Correct 121 ms 12256 KB Output is correct
4 Correct 118 ms 12280 KB Output is correct
5 Correct 122 ms 12408 KB Output is correct
6 Correct 125 ms 12280 KB Output is correct
7 Correct 121 ms 12280 KB Output is correct
8 Correct 98 ms 11128 KB Output is correct
9 Correct 97 ms 11128 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 155 ms 12280 KB Output is correct
12 Correct 154 ms 12280 KB Output is correct
13 Correct 155 ms 12280 KB Output is correct
14 Correct 156 ms 12408 KB Output is correct
15 Correct 154 ms 12408 KB Output is correct
16 Correct 156 ms 12280 KB Output is correct
17 Correct 156 ms 12408 KB Output is correct
18 Correct 124 ms 12284 KB Output is correct
19 Correct 124 ms 12280 KB Output is correct
20 Correct 0 ms 384 KB Output is correct
21 Correct 241 ms 13096 KB Output is correct
22 Correct 238 ms 13176 KB Output is correct
23 Correct 235 ms 13048 KB Output is correct
24 Correct 237 ms 13048 KB Output is correct
25 Correct 238 ms 13052 KB Output is correct
26 Correct 235 ms 13048 KB Output is correct
27 Correct 236 ms 13180 KB Output is correct
28 Correct 203 ms 13176 KB Output is correct
29 Correct 200 ms 13176 KB Output is correct
30 Correct 1 ms 384 KB Output is correct

Subtask #7
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 483 ms 14620 KB Output is correct
3 Correct 477 ms 14712 KB Output is correct
4 Correct 484 ms 14712 KB Output is correct
5 Correct 484 ms 14584 KB Output is correct
6 Correct 479 ms 14712 KB Output is correct
7 Correct 493 ms 14864 KB Output is correct
8 Correct 498 ms 14684 KB Output is correct
9 Correct 483 ms 13560 KB Output is correct
10 Correct 487 ms 13560 KB Output is correct
11 Correct 123 ms 12280 KB Output is correct
12 Correct 124 ms 12412 KB Output is correct
13 Correct 121 ms 12256 KB Output is correct
14 Correct 118 ms 12280 KB Output is correct
15 Correct 122 ms 12408 KB Output is correct
16 Correct 125 ms 12280 KB Output is correct
17 Correct 121 ms 12280 KB Output is correct
18 Correct 98 ms 11128 KB Output is correct
19 Correct 97 ms 11128 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 155 ms 12280 KB Output is correct
22 Correct 154 ms 12280 KB Output is correct
23 Correct 155 ms 12280 KB Output is correct
24 Correct 156 ms 12408 KB Output is correct
25 Correct 154 ms 12408 KB Output is correct
26 Correct 156 ms 12280 KB Output is correct
27 Correct 156 ms 12408 KB Output is correct
28 Correct 124 ms 12284 KB Output is correct
29 Correct 124 ms 12280 KB Output is correct
30 Correct 0 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 2 ms 384 KB Output is correct
37 Correct 1 ms 384 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 0 ms 384 KB Output is correct
41 Correct 17 ms 1068 KB Output is correct
42 Correct 17 ms 1024 KB Output is correct
43 Correct 17 ms 1024 KB Output is correct
44 Correct 18 ms 1024 KB Output is correct
45 Correct 18 ms 1024 KB Output is correct
46 Correct 18 ms 1024 KB Output is correct
47 Correct 18 ms 1024 KB Output is correct
48 Correct 18 ms 1016 KB Output is correct
49 Correct 6 ms 896 KB Output is correct
50 Correct 1 ms 384 KB Output is correct
51 Correct 241 ms 13096 KB Output is correct
52 Correct 238 ms 13176 KB Output is correct
53 Correct 235 ms 13048 KB Output is correct
54 Correct 237 ms 13048 KB Output is correct
55 Correct 238 ms 13052 KB Output is correct
56 Correct 235 ms 13048 KB Output is correct
57 Correct 236 ms 13180 KB Output is correct
58 Correct 203 ms 13176 KB Output is correct
59 Correct 200 ms 13176 KB Output is correct
60 Correct 1 ms 384 KB Output is correct
61 Correct 537 ms 14808 KB Output is correct
62 Correct 557 ms 14688 KB Output is correct
63 Correct 542 ms 14840 KB Output is correct
64 Correct 520 ms 14640 KB Output is correct
65 Correct 517 ms 14584 KB Output is correct
66 Correct 512 ms 14840 KB Output is correct
67 Correct 510 ms 14712 KB Output is correct
68 Correct 519 ms 13532 KB Output is correct
69 Correct 243 ms 13436 KB Output is correct
70 Correct 1 ms 384 KB Output is correct