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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
#856583	#8682. Waterworld	arca	AC ✓	100ms	4096kb	C++20	388b	2025-01-14 13:30:06	2025-01-14 13:30:07

Judging History

你现在查看的是最新测评结果

[2025-01-14 13:30:07]
评测

测评结果：AC
用时：100ms
内存：4096kb

查看

[2025-01-14 13:30:06]
提交

answer

#include <iomanip>
#include <iostream>

int main() {
    std::ios::sync_with_stdio(0), std::cin.tie(0), std::cout.tie(0);

    int n, m;
    std::cin >> n >> m;

    double ans = 0, tmp;
    for (int i = 0; i < n * m; i++) {
        std::cin >> tmp;
        ans += tmp;
    }

    std::cout << std::setprecision(12) << std::fixed << ans / (n * m)
              << '\n';
}

源文件, 语言: C++20

详细

Test #1:

score: 100

Accepted

time: 1ms

memory: 4096kb

input:

2 2
41 65
31 41

output:

44.500000000000

result:

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

Test #2:

score: 0

Accepted

time: 0ms

memory: 4096kb

input:

2 3
41 65 31
41 19 15

output:

35.333333333333

result:

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

Test #3:

score: 0

Accepted

time: 0ms

memory: 3968kb

input:

2 4
41 65 31 41
19 15 72 11

output:

36.875000000000

result:

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

Test #4:

score: 0

Accepted

time: 0ms

memory: 4096kb

input:

output:

35.333333333333

result:

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

Test #5:

score: 0

Accepted

time: 0ms

memory: 4096kb

input:

output:

41.444444444444

result:

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

Test #6:

score: 0

Accepted

time: 0ms

memory: 4096kb

input:

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

output:

41.833333333333

result:

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

Test #7:

score: 0

Accepted

time: 1ms

memory: 3968kb

input:

output:

36.875000000000

result:

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

Test #8:

score: 0

Accepted

time: 0ms

memory: 3968kb

input:

output:

41.833333333333

result:

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

Test #9:

score: 0

Accepted

time: 0ms

memory: 4096kb

input:

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

output:

42.062500000000

result:

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

Test #10:

score: 0

Accepted

time: 97ms

memory: 3968kb

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:

49.961082324810

result:

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

Test #11:

score: 0

Accepted

time: 99ms

memory: 3968kb

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:

49.960509000000

result:

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

Test #12:

score: 0

Accepted

time: 97ms

memory: 3968kb

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:

49.959382382382

result:

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

Test #13:

score: 0

Accepted

time: 99ms

memory: 3968kb

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:

49.959382382382

result:

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

Test #14:

score: 0

Accepted

time: 30ms

memory: 3968kb

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:

0.000000000000

result:

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

Test #15:

score: 0

Accepted

time: 42ms

memory: 3968kb

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:

100.000000000000

result:

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

Test #16:

score: 0

Accepted

time: 95ms

memory: 3968kb

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:

49.000000000000

result:

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

Test #17:

score: 0

Accepted

time: 1ms

memory: 4096kb

input:

output:

1.888888888889

result:

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

Test #18:

score: 0

Accepted

time: 1ms

memory: 3968kb

input:

output:

2.000000000000

result:

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

Test #19:

score: 0

Accepted

time: 0ms

memory: 4096kb

input:

output:

2.111111111111

result:

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

Test #20:

score: 0

Accepted

time: 1ms

memory: 3968kb

input:

output:

2.222222222222

result:

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

Test #21:

score: 0

Accepted

time: 0ms

memory: 4096kb

input:

output:

2.333333333333

result:

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

Test #22:

score: 0

Accepted

time: 0ms

memory: 3968kb

input:

output:

2.444444444444

result:

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

Test #23:

score: 0

Accepted

time: 0ms

memory: 3968kb

input:

output:

2.555555555556

result:

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

Test #24:

score: 0

Accepted

time: 0ms

memory: 4096kb

input:

output:

2.666666666667

result:

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

Test #25:

score: 0

Accepted

time: 0ms

memory: 4096kb

input:

output:

2.777777777778

result:

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

Test #26:

score: 0

Accepted

time: 0ms

memory: 4096kb

input:

output:

2.166666666667

result:

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

Test #27:

score: 0

Accepted

time: 1ms

memory: 3968kb

input:

output:

2.250000000000

result:

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

Test #28:

score: 0

Accepted

time: 0ms

memory: 3968kb

input:

output:

2.333333333333

result:

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

Test #29:

score: 0

Accepted

time: 1ms

memory: 3968kb

input:

output:

2.416666666667

result:

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

Test #30:

score: 0

Accepted

time: 99ms

memory: 3968kb

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:

49.949113000000

result:

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

Test #31:

score: 0

Accepted

time: 17ms

memory: 4096kb

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:

49.923061286158

result:

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

Test #32:

score: 0

Accepted

time: 4ms

memory: 4096kb

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:

50.067595459236

result:

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

Test #33:

score: 0

Accepted

time: 2ms

memory: 4096kb

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:

50.170496170496

result:

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

Test #34:

score: 0

Accepted

time: 69ms

memory: 4096kb

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:

49.949144647696

result:

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

Test #35:

score: 0

Accepted

time: 2ms

memory: 3968kb

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:

49.861674277017

result:

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

Test #36:

score: 0

Accepted

time: 19ms

memory: 3968kb

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:

49.946340919232

result:

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

Test #37:

score: 0

Accepted

time: 24ms

memory: 3968kb

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:

49.939506450492

result:

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

Test #38:

score: 0

Accepted

time: 16ms

memory: 4096kb

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:

49.987332880936

result:

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

Test #39:

score: 0

Accepted

time: 24ms

memory: 4096kb

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:

49.966454281967

result:

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

Test #40:

score: 0

Accepted

time: 19ms

memory: 3968kb

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:

50.124741145794

result:

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

Test #41:

score: 0

Accepted

time: 0ms

memory: 3968kb

input:

2 2
76 36
68 77

output:

64.250000000000

result:

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

Test #42:

score: 0

Accepted

time: 76ms

memory: 3968kb

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:

0.000000000000

result:

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

Test #43:

score: 0

Accepted

time: 97ms

memory: 3968kb

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:

100.000000000000

result:

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

Test #44:

score: 0

Accepted

time: 1ms

memory: 3968kb

input:

2 2
0 0
0 0

output:

0.000000000000

result:

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

Test #45:

score: 0

Accepted

time: 0ms

memory: 4096kb

input:

2 2
100 100
100 100

output:

100.000000000000

result:

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

Test #46:

score: 0

Accepted

time: 77ms

memory: 3968kb

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:

0.000001000000

result:

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

Test #47:

score: 0

Accepted

time: 100ms

memory: 3968kb

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:

99.999999000000

result:

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

Extra Test:

score: 0

Extra Test Passed