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#601755#1880. Nikanor Loves Gamesrotcar07RE 41ms9040kbC++201.2kb2024-09-30 12:16:542024-09-30 12:16:55

Judging History

你现在查看的是最新测评结果

  • [2024-09-30 12:16:55]
  • 评测
  • 测评结果：RE
  • 用时：41ms
  • 内存：9040kb
查看
  • [2024-09-30 12:16:54]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
constexpr int N=2e5+5;
int a[N],b[N],x[N],n,tp;
ll sum[N];int st[N];
typedef __int128 I;
int main(){
    std::ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    cin>>n;vector<int> v;
    for(int i=1;i<=n;i++){
        cin>>a[i]>>b[i]>>x[i];
        v.push_back(a[i]),v.push_back(b[i]);
    }
    v.push_back(1);
    sort(v.begin(),v.end());v.erase(unique(v.begin(),v.end()),v.end());
    ll ans=-3e18;
    for(int i=1;i<=n;i++){
        sum[0]-=2*x[i];
        sum[lower_bound(v.begin(),v.end(),a[i])-v.begin()]+=2*x[i];
        sum[lower_bound(v.begin(),v.end(),b[i])-v.begin()]+=2*x[i];
    }
    int m=v.size()-1;
    for(int i=1;i<=m;i++) sum[i]+=sum[i-1];
    st[++tp]=m;
    for(int i=m-1;~i;i--){
        while(tp>1&&I(sum[i]-sum[st[tp]])*(v[st[tp]]-v[st[tp-1]])<=I(sum[st[tp]]-sum[st[tp-1]])*(v[i]-v[st[tp]])) tp--;
        st[++tp]=i;
    }
    for(int i=m;~i;i--){
        auto calc=[&](int w){return sum[i]+sum[w]-v[w]*4ll*v[i];};
        while(tp>1&&calc(st[tp])<=calc(st[tp-1]))tp--;
        ans=max(ans,calc(st[tp]));
    }
    cout<<fixed<<setprecision(10)<<ans/4.0<<'\n';
}
源文件, 语言: C++20

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 8000kb

input:

2
1 4 15
3 5 10

output:

2.5000000000

result:

ok found '2.5000000', expected '2.5000000', error '0.0000000'

Test #2:

score: 0
Accepted
time: 1ms
memory: 5836kb

input:

1
2 2 8

output:

4.0000000000

result:

ok found '4.0000000', expected '4.0000000', error '0.0000000'

Test #3:

score: 0
Accepted
time: 1ms
memory: 7776kb

input:

3
94 68 49
51 2 63
26 85 20

output:

-73.0000000000

result:

ok found '-73.0000000', expected '-73.0000000', error '-0.0000000'

Test #4:

score: 0
Accepted
time: 0ms
memory: 5876kb

input:

2
14 68 12
28 2 46

output:

-16.0000000000

result:

ok found '-16.0000000', expected '-16.0000000', error '-0.0000000'

Test #5:

score: 0
Accepted
time: 0ms
memory: 5992kb

input:

5
6 6 8
6 1 11
6 1 13
6 1 5
5 1 2

output:

9.5000000000

result:

ok found '9.5000000', expected '9.5000000', error '0.0000000'

Test #6:

score: 0
Accepted
time: 1ms
memory: 5904kb

input:

5
5 4 2
4 1 10
3 1 3
2 1 3
5 1 5

output:

5.5000000000

result:

ok found '5.5000000', expected '5.5000000', error '0.0000000'

Test #7:

score: 0
Accepted
time: 1ms
memory: 8028kb

input:

5
1 5 2
4 2 7
2 2 2
2 5 14
1 4 2

output:

4.5000000000

result:

ok found '4.5000000', expected '4.5000000', error '0.0000000'

Test #8:

score: 0
Accepted
time: 0ms
memory: 5876kb

input:

5
4 1 9
1 5 13
3 6 10
6 5 8
3 5 5

output:

9.0000000000

result:

ok found '9.0000000', expected '9.0000000', error '0.0000000'

Test #9:

score: 0
Accepted
time: 1ms
memory: 6084kb

input:

5
3 7 9
5 7 12
4 6 13
3 6 6
2 1 2

output:

-6.0000000000

result:

ok found '-6.0000000', expected '-6.0000000', error '-0.0000000'

Test #10:

score: 0
Accepted
time: 1ms
memory: 5872kb

input:

10
8 10 26
11 2 28
13 4 13
11 1 26
6 15 23
12 8 7
9 8 11
11 10 17
8 11 18
3 10 27

output:

32.0000000000

result:

ok found '32.0000000', expected '32.0000000', error '0.0000000'

Test #11:

score: 0
Accepted
time: 1ms
memory: 6092kb

input:

10
6 5 10
10 15 21
7 2 30
14 6 12
1 11 6
1 13 19
8 13 29
9 4 14
1 4 29
4 12 17

output:

12.0000000000

result:

ok found '12.0000000', expected '12.0000000', error '0.0000000'

Test #12:

score: 0
Accepted
time: 1ms
memory: 5904kb

input:

10
5 15 15
3 14 20
11 14 26
15 12 22
5 15 11
12 10 10
1 12 18
7 7 14
3 5 10
12 9 23

output:

-6.0000000000

result:

ok found '-6.0000000', expected '-6.0000000', error '-0.0000000'

Test #13:

score: 0
Accepted
time: 1ms
memory: 5880kb

input:

10
3 9 29
9 5 27
14 13 21
3 15 15
14 11 24
9 14 22
9 3 20
12 15 27
5 13 21
13 11 14

output:

-5.0000000000

result:

ok found '-5.0000000', expected '-5.0000000', error '-0.0000000'

Test #14:

score: 0
Accepted
time: 1ms
memory: 5968kb

input:

10
3 13 11
3 5 20
9 10 1
5 5 25
10 1 29
6 10 26
1 15 1
10 10 18
6 6 2
14 6 20

output:

21.0000000000

result:

ok found '21.0000000', expected '21.0000000', error '0.0000000'

Test #15:

score: 0
Accepted
time: 1ms
memory: 5876kb

input:

100
68 91 90
56 38 71
69 57 87
80 62 21
31 80 25
36 48 40
71 66 49
15 57 78
96 69 43
25 73 57
86 13 5
23 98 18
83 94 9
8 22 43
46 3 50
81 11 26
14 35 39
49 68 73
41 11 25
35 47 48
5 96 15
15 56 60
42 1 40
11 4 25
57 72 9
43 3 90
16 45 36
83 50 17
55 40 39
72 37 6
70 84 24
12 36 95
43 15 13
82 28 68
...

output:

35.5000000000

result:

ok found '35.5000000', expected '35.5000000', error '0.0000000'

Test #16:

score: 0
Accepted
time: 1ms
memory: 5840kb

input:

100
92 35 39
34 92 36
45 45 46
66 5 64
22 21 48
53 70 91
93 19 98
97 67 54
57 77 64
90 81 23
12 83 92
59 3 26
13 65 47
19 23 58
27 58 38
60 18 70
32 94 53
100 66 97
33 53 16
56 2 64
8 9 55
93 92 22
27 25 39
45 49 24
76 80 89
73 55 77
69 53 90
39 77 40
86 12 11
23 87 25
8 96 31
73 45 98
52 62 55
98 9...

output:

-100.0000000000

result:

ok found '-100.0000000', expected '-100.0000000', error '-0.0000000'

Test #17:

score: 0
Accepted
time: 1ms
memory: 5764kb

input:

100
20 84 93
15 45 13
28 33 2
49 41 12
12 50 59
62 89 49
11 60 42
74 84 33
14 94 85
51 2 89
26 66 87
92 12 26
47 32 84
34 16 80
20 16 27
48 34 14
54 61 66
52 47 21
41 87 3
81 45 68
24 18 94
71 23 87
12 49 34
79 6 6
91 92 56
3 15 64
22 69 41
91 3 60
21 76 79
65 41 48
46 9 35
34 54 92
68 10 1
22 82 17...

output:

25.5000000000

result:

ok found '25.5000000', expected '25.5000000', error '0.0000000'

Test #18:

score: 0
Accepted
time: 0ms
memory: 5832kb

input:

100
44 28 47
89 7 89
7 21 57
27 92 56
14 96 86
79 11 7
29 4 95
56 93 16
71 2 6
100 14 59
53 32 82
24 20 35
73 7 22
44 9 91
5 70 24
31 41 50
72 19 80
100 44 46
33 26 94
2 4 72
27 35 29
49 54 44
92 73 33
13 55 92
6 3 31
37 76 47
75 77 87
44 33 80
63 48 51
12 90 66
83 17 46
99 59 78
76 61 35
39 52 91
9...

output:

-57.0000000000

result:

ok found '-57.0000000', expected '-57.0000000', error '-0.0000000'

Test #19:

score: 0
Accepted
time: 1ms
memory: 7912kb

input:

100
68 73 96
63 60 58
86 13 29
13 32 95
4 25 97
96 30 61
55 57 43
34 98 95
32 14 27
65 26 38
79 10 69
56 33 35
98 82 59
55 9 5
82 25 12
19 53 94
90 82 6
48 29 70
29 60 76
23 59 89
38 44 64
31 81 10
77 96 24
51 99 79
25 19 11
68 32 34
28 89 38
100 64 4
94 16 19
58 40 89
17 34 57
64 69 80
92 12 81
63 ...

output:

-81.5000000000

result:

ok found '-81.5000000', expected '-81.5000000', error '-0.0000000'

Test #20:

score: 0
Accepted
time: 36ms
memory: 7668kb

input:

200000
14 11 10
2 6 10
18 13 7
8 5 11
13 5 14
16 14 2
4 5 17
4 20 7
7 3 9
9 8 11
15 1 20
19 13 3
19 17 15
9 16 20
5 5 15
2 1 6
11 14 13
8 13 7
2 3 10
7 18 9
1 4 12
17 3 7
14 4 17
12 14 11
18 11 6
11 7 15
10 4 13
13 2 14
2 1 18
7 3 18
12 16 19
17 13 7
7 17 1
20 9 2
2 1 2
6 13 11
7 11 9
20 16 3
9 4 4
...

output:

2100856.0000000000

result:

ok found '2100856.0000000', expected '2100856.0000000', error '0.0000000'

Test #21:

score: 0
Accepted
time: 41ms
memory: 8100kb

input:

200000
18 20 15
4 20 7
1 5 6
6 8 19
3 2 5
14 17 17
2 18 18
17 18 10
8 11 11
6 9 2
1 19 11
16 18 7
13 8 13
7 9 2
6 4 12
6 9 10
5 5 6
16 2 15
18 18 1
8 9 1
8 10 11
14 18 12
19 8 8
18 11 17
9 19 1
17 3 2
3 11 15
9 17 10
12 17 6
14 17 20
10 16 11
18 2 6
16 5 3
4 2 16
3 16 16
16 11 14
4 2 4
5 8 6
17 8 9
...

output:

2101118.0000000000

result:

ok found '2101118.0000000', expected '2101118.0000000', error '0.0000000'

Test #22:

score: 0
Accepted
time: 38ms
memory: 9040kb

input:

200000
6 4 9
1 13 15
16 13 6
13 8 19
5 11 12
11 3 11
4 19 6
3 7 9
9 20 12
3 17 12
4 6 6
8 3 8
19 3 6
14 13 13
19 18 20
13 20 10
3 20 4
4 11 15
15 12 12
9 16 9
20 7 6
12 1 17
4 11 7
12 16 4
8 11 17
11 19 5
16 3 14
5 3 18
15 17 17
20 7 19
8 9 18
7 12 16
12 12 17
8 11 10
4 19 11
18 18 17
13 9 12
10 20 ...

output:

2100494.0000000000

result:

ok found '2100494.0000000', expected '2100494.0000000', error '0.0000000'

Test #23:

score: 0
Accepted
time: 36ms
memory: 8540kb

input:

200000
10 4 6
3 15 8
20 17 1
15 3 10
16 12 3
12 2 13
7 4 19
5 16 12
18 20 9
16 17 2
6 4 17
4 16 16
13 18 8
5 6 7
4 13 17
17 12 10
17 10 6
16 16 4
7 19 19
14 11 13
3 4 5
10 13 15
5 15 6
10 4 18
11 2 4
1 15 7
1 11 4
14 17 2
10 9 5
7 16 2
18 1 5
12 1 10
20 3 19
16 20 4
5 14 17
19 17 16
9 4 11
14 12 15
...

output:

2104832.0000000000

result:

ok found '2104832.0000000', expected '2104832.0000000', error '0.0000000'

Test #24:

score: 0
Accepted
time: 32ms
memory: 7996kb

input:

200000
14 9 12
13 9 5
7 10 8
13 7 10
6 2 10
9 4 3
9 12 7
3 6 11
15 12 10
1 10 9
12 19 4
17 4 16
6 5 5
19 7 6
1 3 6
20 3 14
15 5 20
7 10 4
11 13 10
15 2 5
14 13 16
12 8 20
6 15 17
4 17 20
7 18 3
12 15 10
14 19 19
10 8 6
1 1 9
14 6 4
12 2 16
13 10 4
8 15 13
20 1 19
2 1 11
5 8 15
14 16 15
19 8 18
9 19 ...

output:

2103344.0000000000

result:

ok found '2103344.0000000', expected '2103344.0000000', error '0.0000000'

Test #25:

score: 0
Accepted
time: 37ms
memory: 8504kb

input:

200000
18 17 6
14 18 10
18 18 4
15 7 14
20 3 1
18 19 6
7 17 8
8 19 7
16 20 11
18 10 19
18 13 4
13 17 20
12 20 3
6 20 20
6 18 19
20 15 18
17 12 13
11 15 4
7 11 12
16 13 14
18 10 15
14 19 1
15 2 16
18 6 11
6 2 19
2 15 17
11 15 1
6 14 13
4 5 1
20 11 3
10 6 4
18 19 19
5 18 3
17 15 5
3 8 6
11 6 2
10 11 1...

output:

2099791.0000000000

result:

ok found '2099791.0000000', expected '2099791.0000000', error '0.0000000'

Test #26:

score: 0
Accepted
time: 40ms
memory: 8456kb

input:

200000
6 17 15
12 20 7
6 18 19
2 18 17
6 16 8
15 1 16
5 2 16
6 8 6
13 9 8
15 2 17
12 3 15
5 18 4
18 11 5
13 12 15
19 12 15
20 6 14
15 10 7
7 12 17
19 6 19
1 8 18
5 15 15
16 2 19
4 6 7
12 11 13
1 13 6
16 19 4
16 19 16
2 20 17
19 13 13
7 5 2
4 3 15
7 16 13
13 9 17
1 4 19
4 15 8
17 13 5
15 2 18
5 12 11...

output:

2097689.0000000000

result:

ok found '2097689.0000000', expected '2097689.0000000', error '0.0000000'

Test #27:

score: 0
Accepted
time: 40ms
memory: 8304kb

input:

200000
6 10 9
9 13 3
1 6 19
20 18 1
17 9 7
12 20 18
7 15 9
4 17 9
10 9 10
15 3 8
18 2 2
18 7 8
3 6 18
11 13 13
15 11 4
7 14 18
13 17 1
15 13 13
15 20 10
2 15 10
16 16 10
13 17 20
17 6 6
2 8 19
16 9 5
6 20 7
10 7 7
14 11 5
14 9 16
9 15 20
2 15 18
20 5 7
9 8 19
17 1 13
5 10 3
3 12 20
12 18 17
14 17 2
...

output:

2104030.0000000000

result:

ok found '2104030.0000000', expected '2104030.0000000', error '0.0000000'

Test #28:

score: 0
Accepted
time: 40ms
memory: 7412kb

input:

200000
14 14 19
19 15 8
4 18 14
2 17 9
11 7 18
9 6 8
9 15 9
1 11 8
11 17 11
16 15 14
16 12 1
10 20 13
17 5 20
18 10 12
20 5 13
11 18 2
7 16 14
3 2 5
7 18 17
3 6 18
20 10 9
11 8 5
6 13 5
16 12 6
11 1 5
17 16 14
3 3 13
7 1 17
13 9 8
20 4 7
19 16 5
5 11 1
17 16 1
17 14 7
6 1 1
9 2 3
16 5 1
7 9 5
13 3 1...

output:

2098865.0000000000

result:

ok found '2098865.0000000', expected '2098865.0000000', error '0.0000000'

Test #29:

score: 0
Accepted
time: 41ms
memory: 7540kb

input:

200000
14 1 14
8 20 15
2 15 11
20 16 8
3 15 5
20 19 2
1 18 11
8 16 7
4 17 12
14 15 17
8 9 10
5 20 10
2 4 11
15 20 19
20 15 16
14 13 14
5 17 15
17 3 7
8 8 7
3 8 14
19 6 13
4 15 19
10 18 9
7 20 17
5 8 8
7 6 6
18 3 15
2 17 14
3 17 5
11 2 19
12 20 10
10 5 2
7 18 9
13 11 12
20 13 15
12 20 2
15 17 3
13 18...

output:

2102647.0000000000

result:

ok found '2102647.0000000', expected '2102647.0000000', error '0.0000000'

Test #30:

score: -100
Runtime Error

input:

200000
558273441 797132086 95394395
410375788 603346154 991788394
501822655 954838746 104557620
987594944 800261563 456008910
944698458 473660405 947257686
43525951 515134254 221154267
581712330 247867513 268703732
553202136 786196487 556214428
384021989 736444004 231738414
760952860 568578734 24958...

output:

result:
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