QOJ.ac

QOJ

ID	题目	提交者	结果	用时	内存	语言	文件大小	提交时间	测评时间
#553485	#8682. Waterworld	RngBased^#	AC ✓	89ms	11788kb	C++17	713b	2024-09-08 14:05:58	2024-09-08 14:05:59

Judging History

你现在查看的是最新测评结果

[2024-09-08 14:05:59]
评测

测评结果：AC
用时：89ms
内存：11788kb

查看

[2024-09-08 14:05:58]
提交

answer

#include <bits/stdc++.h>
#define ll long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define pdd pair<double, double>
#define F first
#define S second 
#define all(x) x.begin(), x.end()
using namespace std;
ll n, m;
double arr[1005][1005];
double ans;
const double pi = acos(-1);
signed main()
{
    ios::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);
    cin >> n >> m;
    for (int i = 1; i <= n; i++){
        for (int j = 1; j <= m; j++)
            cin >> arr[i][j];
    }
    double sum = 0;
    for (int i = 1; i <= n; i++){
        for (int j = 1; j <= m; j++)
            sum += arr[i][j];
    }
    cout << fixed << setprecision(10) << sum / (n * m) << '\n';
}

源文件, 语言: C++17

详细

Test #1:

score: 100

Accepted

time: 0ms

memory: 3840kb

input:

2 2
41 65
31 41

output:

44.5000000000

result:

ok found '44.5000000', expected '44.5000000', error '0.0000000'

Test #2:

score: 0

Accepted

time: 0ms

memory: 3932kb

input:

2 3
41 65 31
41 19 15

output:

35.3333333333

result:

ok found '35.3333333', expected '35.3333333', error '0.0000000'

Test #3:

score: 0

Accepted

time: 0ms

memory: 3772kb

input:

2 4
41 65 31 41
19 15 72 11

output:

36.8750000000

result:

ok found '36.8750000', expected '36.8750000', error '0.0000000'

Test #4:

score: 0

Accepted

time: 0ms

memory: 3928kb

input:

output:

35.3333333333

result:

ok found '35.3333333', expected '35.3333333', error '0.0000000'

Test #5:

score: 0

Accepted

time: 0ms

memory: 3944kb

input:

output:

41.4444444444

result:

ok found '41.4444444', expected '41.4444444', error '0.0000000'

Test #6:

score: 0

Accepted

time: 0ms

memory: 3840kb

input:

3 4
41 65 31 41
19 15 72 11
78 69 37 23

output:

41.8333333333

result:

ok found '41.8333333', expected '41.8333333', error '0.0000000'

Test #7:

score: 0

Accepted

time: 0ms

memory: 3820kb

input:

output:

36.8750000000

result:

ok found '36.8750000', expected '36.8750000', error '0.0000000'

Test #8:

score: 0

Accepted

time: 0ms

memory: 3944kb

input:

output:

41.8333333333

result:

ok found '41.8333333', expected '41.8333333', error '0.0000000'

Test #9:

score: 0

Accepted

time: 0ms

memory: 3840kb

input:

4 4
41 65 31 41
19 15 72 11
78 69 37 23
29 63 75 4

output:

42.0625000000

result:

ok found '42.0625000', expected '42.0625000', error '0.0000000'

Test #10:

score: 0

Accepted

time: 86ms

memory: 11712kb

input:

998 999
41 65 31 41 19 15 72 11 78 69 37 23 29 63 75 4 5 49 75 99 27 61 62 17 79 61 22 13 49 71 61 8 81 67 80 47 83 88 30 12 74 78 33 23 58 83 76 59 77 85 25 18 98 16 100 79 88 36 53 72 95 93 39 78 5 15 56 26 62 65 57 69 63 31 63 68 46 40 46 15 87 49 47 17 61 8 42 39 64 86 49 43 44 47 69 25 67 58 57...

output:

49.9610823248

result:

ok found '49.9610823', expected '49.9610823', error '0.0000000'

Test #11:

score: 0

Accepted

time: 84ms

memory: 11660kb

input:

1000 1000
41 65 31 41 19 15 72 11 78 69 37 23 29 63 75 4 5 49 75 99 27 61 62 17 79 61 22 13 49 71 61 8 81 67 80 47 83 88 30 12 74 78 33 23 58 83 76 59 77 85 25 18 98 16 100 79 88 36 53 72 95 93 39 78 5 15 56 26 62 65 57 69 63 31 63 68 46 40 46 15 87 49 47 17 61 8 42 39 64 86 49 43 44 47 69 25 67 58 ...

output:

49.9605090000

result:

ok found '49.9605090', expected '49.9605090', error '0.0000000'

Test #12:

score: 0

Accepted

time: 82ms

memory: 11668kb

input:

1000 999
41 65 31 41 19 15 72 11 78 69 37 23 29 63 75 4 5 49 75 99 27 61 62 17 79 61 22 13 49 71 61 8 81 67 80 47 83 88 30 12 74 78 33 23 58 83 76 59 77 85 25 18 98 16 100 79 88 36 53 72 95 93 39 78 5 15 56 26 62 65 57 69 63 31 63 68 46 40 46 15 87 49 47 17 61 8 42 39 64 86 49 43 44 47 69 25 67 58 5...

output:

49.9593823824

result:

ok found '49.9593824', expected '49.9593824', error '0.0000000'

Test #13:

score: 0

Accepted

time: 87ms

memory: 11680kb

input:

999 1000
41 65 31 41 19 15 72 11 78 69 37 23 29 63 75 4 5 49 75 99 27 61 62 17 79 61 22 13 49 71 61 8 81 67 80 47 83 88 30 12 74 78 33 23 58 83 76 59 77 85 25 18 98 16 100 79 88 36 53 72 95 93 39 78 5 15 56 26 62 65 57 69 63 31 63 68 46 40 46 15 87 49 47 17 61 8 42 39 64 86 49 43 44 47 69 25 67 58 5...

output:

49.9593823824

result:

ok found '49.9593824', expected '49.9593824', error '0.0000000'

Test #14:

score: 0

Accepted

time: 22ms

memory: 9136kb

input:

687 598
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...

output:

0.0000000000

result:

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

Test #15:

score: 0

Accepted

time: 35ms

memory: 10972kb

input:

868 495
100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 ...

output:

100.0000000000

result:

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

Test #16:

score: 0

Accepted

time: 84ms

memory: 11600kb

input:

989 999
49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 49 4...

output:

49.0000000000

result:

ok found '49.0000000', expected '49.0000000', error '0.0000000'

Test #17:

score: 0

Accepted

time: 0ms

memory: 3944kb

input:

output:

1.8888888889

result:

ok found '1.8888889', expected '1.8888889', error '0.0000000'

Test #18:

score: 0

Accepted

time: 0ms

memory: 3944kb

input:

output:

2.0000000000

result:

ok found '2.0000000', expected '2.0000000', error '0.0000000'

Test #19:

score: 0

Accepted

time: 0ms

memory: 3876kb

input:

output:

2.1111111111

result:

ok found '2.1111111', expected '2.1111111', error '0.0000000'

Test #20:

score: 0

Accepted

time: 0ms

memory: 3876kb

input:

output:

2.2222222222

result:

ok found '2.2222222', expected '2.2222222', error '0.0000000'

Test #21:

score: 0

Accepted

time: 0ms

memory: 3832kb

input:

output:

2.3333333333

result:

ok found '2.3333333', expected '2.3333333', error '0.0000000'

Test #22:

score: 0

Accepted

time: 0ms

memory: 3832kb

input:

output:

2.4444444444

result:

ok found '2.4444444', expected '2.4444444', error '0.0000000'

Test #23:

score: 0

Accepted

time: 0ms

memory: 3876kb

input:

output:

2.5555555556

result:

ok found '2.5555556', expected '2.5555556', error '0.0000000'

Test #24:

score: 0

Accepted

time: 0ms

memory: 3824kb

input:

output:

2.6666666667

result:

ok found '2.6666667', expected '2.6666667', error '0.0000000'

Test #25:

score: 0

Accepted

time: 0ms

memory: 3876kb

input:

output:

2.7777777778

result:

ok found '2.7777778', expected '2.7777778', error '0.0000000'

Test #26:

score: 0

Accepted

time: 0ms

memory: 3872kb

input:

output:

2.1666666667

result:

ok found '2.1666667', expected '2.1666667', error '0.0000000'

Test #27:

score: 0

Accepted

time: 0ms

memory: 3840kb

input:

output:

2.2500000000

result:

ok found '2.2500000', expected '2.2500000', error '0.0000000'

Test #28:

score: 0

Accepted

time: 0ms

memory: 3816kb

input:

output:

2.3333333333

result:

ok found '2.3333333', expected '2.3333333', error '0.0000000'

Test #29:

score: 0

Accepted

time: 0ms

memory: 3824kb

input:

output:

2.4166666667

result:

ok found '2.4166667', expected '2.4166667', error '0.0000000'

Test #30:

score: 0

Accepted

time: 86ms

memory: 11684kb

input:

1000 1000
76 36 68 77 44 98 72 7 5 72 74 71 28 32 74 89 3 95 68 93 64 23 40 2 8 20 59 80 92 24 45 12 76 16 83 71 75 65 81 61 27 37 92 42 87 0 2 47 23 52 71 95 43 67 92 74 60 46 59 6 41 56 23 53 78 61 51 68 68 36 28 35 69 62 92 94 96 62 5 18 67 70 39 4 30 83 44 85 58 79 35 50 15 64 27 60 36 12 60 30 ...

output:

49.9491130000

result:

ok found '49.9491130', expected '49.9491130', error '0.0000000'

Test #31:

score: 0

Accepted

time: 17ms

memory: 6684kb

input:

295 617
68 77 44 98 72 7 5 72 74 71 28 32 74 89 3 95 68 93 64 23 40 2 8 20 59 80 92 24 45 12 76 16 83 71 75 65 81 61 27 37 92 42 87 0 2 47 23 52 71 95 43 67 92 74 60 46 59 6 41 56 23 53 78 61 51 68 68 36 28 35 69 62 92 94 96 62 5 18 67 70 39 4 30 83 44 85 58 79 35 50 15 64 27 60 36 12 60 30 41 14 27...

output:

49.9230612862

result:

ok found '49.9230613', expected '49.9230613', error '0.0000000'

Test #32:

score: 0

Accepted

time: 4ms

memory: 10816kb

input:

969 30
16 99 27 95 88 69 30 22 38 18 89 62 29 76 34 16 20 93 82 43 11 30 51 61 57 91 89 54 67 51
99 20 76 62 34 44 20 66 31 40 23 46 61 28 78 67 63 98 92 55 0 35 73 88 15 4 45 9 35 91
13 10 38 67 36 93 84 22 25 73 39 89 100 29 19 14 63 2 88 21 50 18 48 95 93 17 41 90 13 5
3 50 13 77 54 57 60 11 58 4...

output:

50.0675954592

result:

ok found '50.0675955', expected '50.0675955', error '0.0000000'

Test #33:

score: 0

Accepted

time: 2ms

memory: 6400kb

input:

91 198
46 36 75 94 74 52 20 93 1 9 9 15 40 31 96 17 20 27 99 10 10 22 9 8 41 10 82 13 5 30 60 81 82 22 15 69 54 33 29 77 75 24 68 42 87 5 88 63 1 43 54 99 50 43 9 38 56 87 17 91 41 93 72 44 58 90 29 42 22 62 44 36 83 67 29 17 31 5 34 15 28 39 86 76 30 81 17 20 48 29 15 76 33 67 33 87 59 5 54 76 25 3...

output:

50.1704961705

result:

ok found '50.1704962', expected '50.1704962', error '0.0000000'

Test #34:

score: 0

Accepted

time: 61ms

memory: 10716kb

input:

864 820
54 15 97 27 71 2 11 71 32 50 36 42 80 98 1 42 2 23 40 1 100 35 72 71 34 19 53 73 33 89 78 97 11 3 78 88 64 32 0 5 20 18 99 49 57 47 15 45 36 75 97 65 9 98 20 74 66 86 56 0 79 68 89 13 61 76 3 32 13 9 25 94 65 63 17 6 96 10 54 43 86 29 77 18 72 86 61 99 41 79 97 23 0 43 43 50 25 39 11 85 54 6...

output:

49.9491446477

result:

ok found '49.9491446', expected '49.9491446', error '0.0000000'

Test #35:

score: 0

Accepted

time: 0ms

memory: 7092kb

input:

438 75
97 86 72 15 26 43 35 23 71 27 35 31 61 68 81 16 40 77 80 37 13 25 62 4 94 3 54 28 39 0 16 25 5 71 54 62 53 38 15 97 88 73 52 87 47 54 66 16 98 6 57 34 44 90 17 88 32 58 85 4 6 53 7 91 82 17 84 2 64 72 30 40 20 31 23
35 29 0 89 28 21 65 79 66 0 26 49 50 70 14 56 88 78 57 47 78 86 81 34 87 94 3...

output:

49.8616742770

result:

ok found '49.8616743', expected '49.8616743', error '0.0000000'

Test #36:

score: 0

Accepted

time: 14ms

memory: 11132kb

input:

996 189
29 72 39 97 95 58 42 27 43 16 8 53 5 6 43 10 22 52 71 93 91 47 68 27 78 34 67 93 73 85 95 67 35 86 81 80 90 70 16 42 32 7 95 47 91 35 33 30 1 69 17 49 8 90 46 41 72 62 79 92 33 46 38 48 94 19 59 100 9 0 2 44 81 100 85 30 41 18 94 30 82 71 61 12 32 77 1 8 48 12 27 33 82 7 65 26 88 44 62 46 3 ...

output:

49.9463409192

result:

ok found '49.9463409', expected '49.9463409', error '0.0000000'

Test #37:

score: 0

Accepted

time: 22ms

memory: 7152kb

input:

295 829
47 41 15 1 97 74 65 84 73 87 55 56 65 7 17 17 21 60 23 36 75 93 74 20 53 28 6 48 71 66 31 69 29 52 63 18 68 60 29 60 78 57 13 91 26 15 10 82 80 29 87 60 85 98 77 44 7 16 34 46 42 19 21 51 83 30 70 73 35 37 2 32 30 92 50 32 3 11 8 8 46 66 5 73 70 6 8 41 11 44 65 83 8 78 72 7 28 43 2 72 80 34 ...

output:

49.9395064505

result:

ok found '49.9395065', expected '49.9395065', error '0.0000000'

Test #38:

score: 0

Accepted

time: 15ms

memory: 7520kb

input:

366 459
9 6 7 46 17 59 91 22 58 47 57 29 15 7 12 55 57 90 56 48 14 17 80 24 71 18 33 7 68 14 32 33 22 91 10 13 28 3 73 87 6 81 14 92 6 41 34 79 0 12 79 33 9 80 76 89 82 7 80 53 86 77 25 79 52 1 17 80 36 76 36 53 11 86 88 71 35 76 22 90 25 91 36 27 27 92 55 11 36 92 58 12 77 45 60 64 95 54 97 66 6 36...

output:

49.9873328809

result:

ok found '49.9873329', expected '49.9873329', error '0.0000000'

Test #39:

score: 0

Accepted

time: 22ms

memory: 7276kb

input:

409 604
67 5 74 38 51 30 97 73 88 91 71 11 8 48 5 53 6 15 43 21 100 45 96 40 4 7 55 67 26 22 11 35 51 63 91 24 50 85 18 17 67 77 25 25 25 76 97 39 78 51 72 27 20 52 81 31 39 47 22 13 66 64 39 71 18 95 100 23 10 91 83 53 20 21 52 41 100 69 74 25 39 40 5 67 34 14 3 84 83 8 75 39 42 51 32 75 50 18 35 9...

output:

49.9664542820

result:

ok found '49.9664543', expected '49.9664543', error '0.0000000'

Test #40:

score: 0

Accepted

time: 18ms

memory: 9456kb

input:

693 285
67 92 26 75 70 11 64 33 19 58 85 8 62 53 36 11 17 67 88 65 68 46 72 59 47 80 15 87 90 10 92 46 21 61 75 53 78 15 82 99 57 85 47 39 34 39 38 7 54 81 13 100 16 5 34 15 35 35 87 29 51 82 15 62 42 11 23 97 61 34 48 75 88 75 82 6 14 84 97 38 95 2 22 42 10 78 63 30 18 69 19 0 32 71 1 71 84 41 85 7...

output:

50.1247411458

result:

ok found '50.1247411', expected '50.1247411', error '0.0000000'

Test #41:

score: 0

Accepted

time: 0ms

memory: 3828kb

input:

2 2
76 36
68 77

output:

64.2500000000

result:

ok found '64.2500000', expected '64.2500000', error '0.0000000'

Test #42:

score: 0

Accepted

time: 66ms

memory: 11788kb

input:

1000 1000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...

output:

0.0000000000

result:

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

Test #43:

score: 0

Accepted

time: 81ms

memory: 11736kb

input:

1000 1000
100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 10...

output:

100.0000000000

result:

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

Test #44:

score: 0

Accepted

time: 0ms

memory: 3880kb

input:

2 2
0 0
0 0

output:

0.0000000000

result:

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

Test #45:

score: 0

Accepted

time: 0ms

memory: 3684kb

input:

2 2
100 100
100 100

output:

100.0000000000

result:

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

Test #46:

score: 0

Accepted

time: 65ms

memory: 11776kb

input:

1000 1000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...

output:

0.0000010000

result:

ok found '0.0000010', expected '0.0000010', error '0.0000000'

Test #47:

score: 0

Accepted

time: 89ms

memory: 11740kb

input:

1000 1000
100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 10...

output:

99.9999990000

result:

ok found '99.9999990', expected '99.9999990', error '0.0000000'

Extra Test:

score: 0

Extra Test Passed