oj.uz

답안 #586498

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
586498 2022-06-30T10:48:26 Z krit3379 Mountains (NOI20_mountains) C++17
100 / 100
 783 ms 34076 KB 
#include<bits/stdc++.h>
using namespace std;
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#define N 300005

long long a[N],fen[N],l[N],r[N],ans;
map<long long,int> mp;

void upd(int x){
    while(x<N){
        fen[x]++;
        x+=x&-x;
    }
}

long long sol(int x){
    long long ans=0;
    while(x){
        ans+=fen[x];
        x-=x&-x;
    }
    return ans;
}

int main(){
    int n,i;
    scanf("%d",&n);
    for(i=1;i<=n;i++)scanf("%lld",&a[i]),mp[a[i]];
    i=0;
    for(auto &[x,y]:mp)y=++i;
    for(i=1;i<=n;i++){
        l[i]=sol(mp[a[i]]);
        upd(mp[a[i]]+1);
    }
    for(i=1;i<=n;i++)fen[i]=0;
    for(i=n;i;i--){
        r[i]=sol(mp[a[i]]);
        upd(mp[a[i]]+1);
    }
    for(i=1;i<=n;i++)ans+=l[i]*r[i];
    printf("%lld",ans);
    return 0;
}

Compilation message

Mountains.cpp: In function 'int main()':
Mountains.cpp:28:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   28 |     scanf("%d",&n);
      |     ~~~~~^~~~~~~~~
Mountains.cpp:29:27: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 |     for(i=1;i<=n;i++)scanf("%lld",&a[i]),mp[a[i]];
      |                      ~~~~~^~~~~~~~~~~~~~

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 281 ms 33996 KB Output is correct
3 Correct 290 ms 33976 KB Output is correct
4 Correct 268 ms 33924 KB Output is correct
5 Correct 279 ms 33992 KB Output is correct
6 Correct 291 ms 33984 KB Output is correct
7 Correct 275 ms 33996 KB Output is correct
8 Correct 289 ms 33940 KB Output is correct
9 Correct 232 ms 24888 KB Output is correct
10 Correct 233 ms 24948 KB Output is correct

Subtask #2
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 55 ms 10232 KB Output is correct
2 Correct 57 ms 10156 KB Output is correct
3 Correct 64 ms 10160 KB Output is correct
4 Correct 54 ms 10252 KB Output is correct
5 Correct 54 ms 10168 KB Output is correct
6 Correct 52 ms 10212 KB Output is correct
7 Correct 59 ms 10216 KB Output is correct
8 Correct 57 ms 10232 KB Output is correct
9 Correct 54 ms 10184 KB Output is correct
10 Correct 1 ms 340 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 55 ms 10232 KB Output is correct
2 Correct 57 ms 10156 KB Output is correct
3 Correct 64 ms 10160 KB Output is correct
4 Correct 54 ms 10252 KB Output is correct
5 Correct 54 ms 10168 KB Output is correct
6 Correct 52 ms 10212 KB Output is correct
7 Correct 59 ms 10216 KB Output is correct
8 Correct 57 ms 10232 KB Output is correct
9 Correct 54 ms 10184 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 86 ms 10428 KB Output is correct
12 Correct 94 ms 10420 KB Output is correct
13 Correct 91 ms 10520 KB Output is correct
14 Correct 84 ms 10440 KB Output is correct
15 Correct 79 ms 10464 KB Output is correct
16 Correct 83 ms 10440 KB Output is correct
17 Correct 81 ms 10444 KB Output is correct
18 Correct 62 ms 10524 KB Output is correct
19 Correct 57 ms 10468 KB Output is correct
20 Correct 0 ms 340 KB Output is correct

Subtask #4
36.0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 420 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 316 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 308 KB Output is correct

Subtask #5
28.0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 420 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 316 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 308 KB Output is correct
11 Correct 9 ms 1420 KB Output is correct
12 Correct 10 ms 1364 KB Output is correct
13 Correct 10 ms 1364 KB Output is correct
14 Correct 11 ms 1464 KB Output is correct
15 Correct 13 ms 1444 KB Output is correct
16 Correct 10 ms 1388 KB Output is correct
17 Correct 9 ms 1420 KB Output is correct
18 Correct 7 ms 1108 KB Output is correct
19 Correct 4 ms 700 KB Output is correct
20 Correct 1 ms 340 KB Output is correct

Subtask #6
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 55 ms 10232 KB Output is correct
2 Correct 57 ms 10156 KB Output is correct
3 Correct 64 ms 10160 KB Output is correct
4 Correct 54 ms 10252 KB Output is correct
5 Correct 54 ms 10168 KB Output is correct
6 Correct 52 ms 10212 KB Output is correct
7 Correct 59 ms 10216 KB Output is correct
8 Correct 57 ms 10232 KB Output is correct
9 Correct 54 ms 10184 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 86 ms 10428 KB Output is correct
12 Correct 94 ms 10420 KB Output is correct
13 Correct 91 ms 10520 KB Output is correct
14 Correct 84 ms 10440 KB Output is correct
15 Correct 79 ms 10464 KB Output is correct
16 Correct 83 ms 10440 KB Output is correct
17 Correct 81 ms 10444 KB Output is correct
18 Correct 62 ms 10524 KB Output is correct
19 Correct 57 ms 10468 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 433 ms 17492 KB Output is correct
22 Correct 412 ms 17232 KB Output is correct
23 Correct 421 ms 17348 KB Output is correct
24 Correct 422 ms 17328 KB Output is correct
25 Correct 367 ms 17324 KB Output is correct
26 Correct 384 ms 17260 KB Output is correct
27 Correct 370 ms 17232 KB Output is correct
28 Correct 182 ms 17388 KB Output is correct
29 Correct 192 ms 17252 KB Output is correct
30 Correct 1 ms 308 KB Output is correct

Subtask #7
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 281 ms 33996 KB Output is correct
3 Correct 290 ms 33976 KB Output is correct
4 Correct 268 ms 33924 KB Output is correct
5 Correct 279 ms 33992 KB Output is correct
6 Correct 291 ms 33984 KB Output is correct
7 Correct 275 ms 33996 KB Output is correct
8 Correct 289 ms 33940 KB Output is correct
9 Correct 232 ms 24888 KB Output is correct
10 Correct 233 ms 24948 KB Output is correct
11 Correct 55 ms 10232 KB Output is correct
12 Correct 57 ms 10156 KB Output is correct
13 Correct 64 ms 10160 KB Output is correct
14 Correct 54 ms 10252 KB Output is correct
15 Correct 54 ms 10168 KB Output is correct
16 Correct 52 ms 10212 KB Output is correct
17 Correct 59 ms 10216 KB Output is correct
18 Correct 57 ms 10232 KB Output is correct
19 Correct 54 ms 10184 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 86 ms 10428 KB Output is correct
22 Correct 94 ms 10420 KB Output is correct
23 Correct 91 ms 10520 KB Output is correct
24 Correct 84 ms 10440 KB Output is correct
25 Correct 79 ms 10464 KB Output is correct
26 Correct 83 ms 10440 KB Output is correct
27 Correct 81 ms 10444 KB Output is correct
28 Correct 62 ms 10524 KB Output is correct
29 Correct 57 ms 10468 KB Output is correct
30 Correct 0 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 420 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 1 ms 340 KB Output is correct
38 Correct 1 ms 316 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 0 ms 308 KB Output is correct
41 Correct 9 ms 1420 KB Output is correct
42 Correct 10 ms 1364 KB Output is correct
43 Correct 10 ms 1364 KB Output is correct
44 Correct 11 ms 1464 KB Output is correct
45 Correct 13 ms 1444 KB Output is correct
46 Correct 10 ms 1388 KB Output is correct
47 Correct 9 ms 1420 KB Output is correct
48 Correct 7 ms 1108 KB Output is correct
49 Correct 4 ms 700 KB Output is correct
50 Correct 1 ms 340 KB Output is correct
51 Correct 433 ms 17492 KB Output is correct
52 Correct 412 ms 17232 KB Output is correct
53 Correct 421 ms 17348 KB Output is correct
54 Correct 422 ms 17328 KB Output is correct
55 Correct 367 ms 17324 KB Output is correct
56 Correct 384 ms 17260 KB Output is correct
57 Correct 370 ms 17232 KB Output is correct
58 Correct 182 ms 17388 KB Output is correct
59 Correct 192 ms 17252 KB Output is correct
60 Correct 1 ms 308 KB Output is correct
61 Correct 776 ms 33992 KB Output is correct
62 Correct 743 ms 34076 KB Output is correct
63 Correct 740 ms 34048 KB Output is correct
64 Correct 747 ms 34028 KB Output is correct
65 Correct 783 ms 33964 KB Output is correct
66 Correct 733 ms 33952 KB Output is correct
67 Correct 753 ms 33952 KB Output is correct
68 Correct 520 ms 24948 KB Output is correct
69 Correct 456 ms 19568 KB Output is correct
70 Correct 1 ms 340 KB Output is correct