oj.uz

Submission #224517

# Submission time Handle Problem Language Result Execution time Memory
224517 2020-04-18T09:41:07 Z Nightlight Mountains (NOI20_mountains) C++14
100 / 100
 938 ms 48276 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp> 
#define pii pair<long long, int>
using namespace std;
using namespace __gnu_pbds;

typedef tree<pii, null_type, less<pii>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;

int N;
long long A[300005];
long long L[300005];
long long ans;
ordered_set suf, pre;

int main() {
  scanf("%d", &N);
  for(int i = 1; i <= N; i++) {
    scanf("%lld", &A[i]);
    L[i] = pre.order_of_key({A[i], 0});
    pre.insert({A[i], i});
  }
  long long R;
  for(int i = N; i > 0; i--) {
    R = suf.order_of_key({A[i], i});
    ans += R * L[i];
    suf.insert({A[i], i});
  }
  printf("%lld\n", ans);
}

Compilation message

Mountains.cpp: In function 'int main()':
Mountains.cpp:17:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &N);
   ~~~~~^~~~~~~~~~
Mountains.cpp:19:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld", &A[i]);
     ~~~~~^~~~~~~~~~~~~~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 764 ms 48096 KB Output is correct
3 Correct 749 ms 48224 KB Output is correct
4 Correct 750 ms 48096 KB Output is correct
5 Correct 767 ms 48120 KB Output is correct
6 Correct 845 ms 48276 KB Output is correct
7 Correct 716 ms 48192 KB Output is correct
8 Correct 717 ms 48172 KB Output is correct
9 Correct 704 ms 48200 KB Output is correct
10 Correct 691 ms 48160 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 348 ms 43256 KB Output is correct
2 Correct 339 ms 43236 KB Output is correct
3 Correct 353 ms 43128 KB Output is correct
4 Correct 330 ms 43256 KB Output is correct
5 Correct 339 ms 43156 KB Output is correct
6 Correct 313 ms 43100 KB Output is correct
7 Correct 333 ms 43128 KB Output is correct
8 Correct 636 ms 43488 KB Output is correct
9 Correct 667 ms 43132 KB Output is correct
10 Correct 5 ms 384 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 348 ms 43256 KB Output is correct
2 Correct 339 ms 43236 KB Output is correct
3 Correct 353 ms 43128 KB Output is correct
4 Correct 330 ms 43256 KB Output is correct
5 Correct 339 ms 43156 KB Output is correct
6 Correct 313 ms 43100 KB Output is correct
7 Correct 333 ms 43128 KB Output is correct
8 Correct 636 ms 43488 KB Output is correct
9 Correct 667 ms 43132 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 616 ms 43488 KB Output is correct
12 Correct 578 ms 43384 KB Output is correct
13 Correct 571 ms 43384 KB Output is correct
14 Correct 568 ms 43384 KB Output is correct
15 Correct 506 ms 43444 KB Output is correct
16 Correct 553 ms 43412 KB Output is correct
17 Correct 562 ms 43512 KB Output is correct
18 Correct 728 ms 43488 KB Output is correct
19 Correct 624 ms 43512 KB Output is correct
20 Correct 5 ms 384 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct

Subtask #5
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 17 ms 1920 KB Output is correct
12 Correct 16 ms 1920 KB Output is correct
13 Correct 17 ms 1920 KB Output is correct
14 Correct 16 ms 1920 KB Output is correct
15 Correct 16 ms 1920 KB Output is correct
16 Correct 20 ms 1920 KB Output is correct
17 Correct 16 ms 1920 KB Output is correct
18 Correct 15 ms 1920 KB Output is correct
19 Correct 16 ms 1792 KB Output is correct
20 Correct 6 ms 384 KB Output is correct

Subtask #6
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 348 ms 43256 KB Output is correct
2 Correct 339 ms 43236 KB Output is correct
3 Correct 353 ms 43128 KB Output is correct
4 Correct 330 ms 43256 KB Output is correct
5 Correct 339 ms 43156 KB Output is correct
6 Correct 313 ms 43100 KB Output is correct
7 Correct 333 ms 43128 KB Output is correct
8 Correct 636 ms 43488 KB Output is correct
9 Correct 667 ms 43132 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 616 ms 43488 KB Output is correct
12 Correct 578 ms 43384 KB Output is correct
13 Correct 571 ms 43384 KB Output is correct
14 Correct 568 ms 43384 KB Output is correct
15 Correct 506 ms 43444 KB Output is correct
16 Correct 553 ms 43412 KB Output is correct
17 Correct 562 ms 43512 KB Output is correct
18 Correct 728 ms 43488 KB Output is correct
19 Correct 624 ms 43512 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 629 ms 44280 KB Output is correct
22 Correct 938 ms 44280 KB Output is correct
23 Correct 651 ms 44256 KB Output is correct
24 Correct 850 ms 44316 KB Output is correct
25 Correct 930 ms 44296 KB Output is correct
26 Correct 896 ms 44256 KB Output is correct
27 Correct 684 ms 44288 KB Output is correct
28 Correct 679 ms 44296 KB Output is correct
29 Correct 648 ms 44408 KB Output is correct
30 Correct 5 ms 384 KB Output is correct

Subtask #7
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 764 ms 48096 KB Output is correct
3 Correct 749 ms 48224 KB Output is correct
4 Correct 750 ms 48096 KB Output is correct
5 Correct 767 ms 48120 KB Output is correct
6 Correct 845 ms 48276 KB Output is correct
7 Correct 716 ms 48192 KB Output is correct
8 Correct 717 ms 48172 KB Output is correct
9 Correct 704 ms 48200 KB Output is correct
10 Correct 691 ms 48160 KB Output is correct
11 Correct 348 ms 43256 KB Output is correct
12 Correct 339 ms 43236 KB Output is correct
13 Correct 353 ms 43128 KB Output is correct
14 Correct 330 ms 43256 KB Output is correct
15 Correct 339 ms 43156 KB Output is correct
16 Correct 313 ms 43100 KB Output is correct
17 Correct 333 ms 43128 KB Output is correct
18 Correct 636 ms 43488 KB Output is correct
19 Correct 667 ms 43132 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 616 ms 43488 KB Output is correct
22 Correct 578 ms 43384 KB Output is correct
23 Correct 571 ms 43384 KB Output is correct
24 Correct 568 ms 43384 KB Output is correct
25 Correct 506 ms 43444 KB Output is correct
26 Correct 553 ms 43412 KB Output is correct
27 Correct 562 ms 43512 KB Output is correct
28 Correct 728 ms 43488 KB Output is correct
29 Correct 624 ms 43512 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 5 ms 384 KB Output is correct
33 Correct 5 ms 384 KB Output is correct
34 Correct 5 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 5 ms 384 KB Output is correct
37 Correct 5 ms 384 KB Output is correct
38 Correct 5 ms 384 KB Output is correct
39 Correct 5 ms 384 KB Output is correct
40 Correct 5 ms 384 KB Output is correct
41 Correct 17 ms 1920 KB Output is correct
42 Correct 16 ms 1920 KB Output is correct
43 Correct 17 ms 1920 KB Output is correct
44 Correct 16 ms 1920 KB Output is correct
45 Correct 16 ms 1920 KB Output is correct
46 Correct 20 ms 1920 KB Output is correct
47 Correct 16 ms 1920 KB Output is correct
48 Correct 15 ms 1920 KB Output is correct
49 Correct 16 ms 1792 KB Output is correct
50 Correct 6 ms 384 KB Output is correct
51 Correct 629 ms 44280 KB Output is correct
52 Correct 938 ms 44280 KB Output is correct
53 Correct 651 ms 44256 KB Output is correct
54 Correct 850 ms 44316 KB Output is correct
55 Correct 930 ms 44296 KB Output is correct
56 Correct 896 ms 44256 KB Output is correct
57 Correct 684 ms 44288 KB Output is correct
58 Correct 679 ms 44296 KB Output is correct
59 Correct 648 ms 44408 KB Output is correct
60 Correct 5 ms 384 KB Output is correct
61 Correct 698 ms 48096 KB Output is correct
62 Correct 861 ms 48100 KB Output is correct
63 Correct 646 ms 48144 KB Output is correct
64 Correct 661 ms 48120 KB Output is correct
65 Correct 783 ms 48120 KB Output is correct
66 Correct 834 ms 48120 KB Output is correct
67 Correct 838 ms 48060 KB Output is correct
68 Correct 702 ms 48160 KB Output is correct
69 Correct 661 ms 44472 KB Output is correct
70 Correct 4 ms 384 KB Output is correct