QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#574914#8682. Waterworlddaduoli#AC ✓47ms7956kbC++14405b2024-09-19 08:42:342024-09-19 08:42:34

Judging History

This is the latest submission verdict.

  • [2024-09-19 08:42:34]
  • Judged
  • Verdict: AC
  • Time: 47ms
  • Memory: 7956kb
  • [2024-09-19 08:42:34]
  • Submitted

answer

#include<bits/stdc++.h>
#define Yzl unsigned long long
typedef long long LL;

using namespace std;

const Yzl Lty=20120712;

const int MAXN=1010;
int n,m;
int a[MAXN][MAXN];
double ans;
int main () {
	scanf("%d%d",&n,&m);
	for(int i=1;i<=n;++i) {
		for(int j=1;j<=m;++j) {
			scanf("%d",&a[i][j]);
			ans+=a[i][j];
		}
	}
	ans=ans*1.0/(n*m*1.0);
	printf("%.7lf\n",ans);
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3876kb

input:

2 2
41 65
31 41

output:

44.5000000

result:

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

Test #2:

score: 0
Accepted
time: 0ms
memory: 3984kb

input:

2 3
41 65 31
41 19 15

output:

35.3333333

result:

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

Test #3:

score: 0
Accepted
time: 0ms
memory: 3940kb

input:

2 4
41 65 31 41
19 15 72 11

output:

36.8750000

result:

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

Test #4:

score: 0
Accepted
time: 0ms
memory: 3984kb

input:

3 2
41 65
31 41
19 15

output:

35.3333333

result:

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

Test #5:

score: 0
Accepted
time: 0ms
memory: 3880kb

input:

3 3
41 65 31
41 19 15
72 11 78

output:

41.4444444

result:

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

Test #6:

score: 0
Accepted
time: 1ms
memory: 3884kb

input:

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

output:

41.8333333

result:

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

Test #7:

score: 0
Accepted
time: 0ms
memory: 3928kb

input:

4 2
41 65
31 41
19 15
72 11

output:

36.8750000

result:

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

Test #8:

score: 0
Accepted
time: 0ms
memory: 3948kb

input:

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

output:

41.8333333

result:

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

Test #9:

score: 0
Accepted
time: 0ms
memory: 3936kb

input:

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

output:

42.0625000

result:

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

Test #10:

score: 0
Accepted
time: 42ms
memory: 7816kb

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:

49.9610823

result:

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

Test #11:

score: 0
Accepted
time: 43ms
memory: 7876kb

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:

49.9605090

result:

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

Test #12:

score: 0
Accepted
time: 42ms
memory: 7872kb

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:

49.9593824

result:

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

Test #13:

score: 0
Accepted
time: 43ms
memory: 7856kb

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:

49.9593824

result:

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

Test #14:

score: 0
Accepted
time: 16ms
memory: 6684kb

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:

0.0000000

result:

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

Test #15:

score: 0
Accepted
time: 16ms
memory: 7336kb

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:

100.0000000

result:

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

Test #16:

score: 0
Accepted
time: 41ms
memory: 7884kb

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:

49.0000000

result:

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

Test #17:

score: 0
Accepted
time: 0ms
memory: 3944kb

input:

3 3
17 0 0
0 0 0
0 0 0

output:

1.8888889

result:

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

Test #18:

score: 0
Accepted
time: 0ms
memory: 3924kb

input:

3 3
0 18 0
0 0 0
0 0 0

output:

2.0000000

result:

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

Test #19:

score: 0
Accepted
time: 0ms
memory: 3976kb

input:

3 3
0 0 19
0 0 0
0 0 0

output:

2.1111111

result:

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

Test #20:

score: 0
Accepted
time: 0ms
memory: 3972kb

input:

3 3
0 0 0
20 0 0
0 0 0

output:

2.2222222

result:

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

Test #21:

score: 0
Accepted
time: 0ms
memory: 3940kb

input:

3 3
0 0 0
0 21 0
0 0 0

output:

2.3333333

result:

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

Test #22:

score: 0
Accepted
time: 0ms
memory: 3920kb

input:

3 3
0 0 0
0 0 22
0 0 0

output:

2.4444444

result:

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

Test #23:

score: 0
Accepted
time: 0ms
memory: 3944kb

input:

3 3
0 0 0
0 0 0
23 0 0

output:

2.5555556

result:

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

Test #24:

score: 0
Accepted
time: 0ms
memory: 3856kb

input:

3 3
0 0 0
0 0 0
0 24 0

output:

2.6666667

result:

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

Test #25:

score: 0
Accepted
time: 0ms
memory: 3936kb

input:

3 3
0 0 0
0 0 0
0 0 25

output:

2.7777778

result:

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

Test #26:

score: 0
Accepted
time: 0ms
memory: 3924kb

input:

4 3
26 0 0
0 0 0
0 0 0
0 0 0

output:

2.1666667

result:

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

Test #27:

score: 0
Accepted
time: 0ms
memory: 4008kb

input:

4 3
0 0 0
0 27 0
0 0 0
0 0 0

output:

2.2500000

result:

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

Test #28:

score: 0
Accepted
time: 0ms
memory: 3980kb

input:

4 3
0 0 0
0 0 0
0 0 28
0 0 0

output:

2.3333333

result:

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

Test #29:

score: 0
Accepted
time: 0ms
memory: 3932kb

input:

4 3
0 0 0
0 0 0
0 0 0
0 0 29

output:

2.4166667

result:

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

Test #30:

score: 0
Accepted
time: 44ms
memory: 7824kb

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:

49.9491130

result:

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

Test #31:

score: 0
Accepted
time: 4ms
memory: 6844kb

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:

49.9230613

result:

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

Test #32:

score: 0
Accepted
time: 0ms
memory: 7956kb

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:

50.0675955

result:

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

Test #33:

score: 0
Accepted
time: 1ms
memory: 4268kb

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:

50.1704962

result:

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

Test #34:

score: 0
Accepted
time: 27ms
memory: 7480kb

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:

49.9491446

result:

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

Test #35:

score: 0
Accepted
time: 0ms
memory: 6956kb

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:

49.8616743

result:

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

Test #36:

score: 0
Accepted
time: 9ms
memory: 7856kb

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:

49.9463409

result:

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

Test #37:

score: 0
Accepted
time: 3ms
memory: 6388kb

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:

49.9395065

result:

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

Test #38:

score: 0
Accepted
time: 8ms
memory: 6520kb

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:

49.9873329

result:

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

Test #39:

score: 0
Accepted
time: 11ms
memory: 6296kb

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:

49.9664543

result:

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

Test #40:

score: 0
Accepted
time: 7ms
memory: 7892kb

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:

50.1247411

result:

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

Test #41:

score: 0
Accepted
time: 0ms
memory: 3940kb

input:

2 2
76 36
68 77

output:

64.2500000

result:

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

Test #42:

score: 0
Accepted
time: 35ms
memory: 7884kb

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:

0.0000000

result:

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

Test #43:

score: 0
Accepted
time: 46ms
memory: 7872kb

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:

100.0000000

result:

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

Test #44:

score: 0
Accepted
time: 0ms
memory: 3932kb

input:

2 2
0 0
0 0

output:

0.0000000

result:

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

Test #45:

score: 0
Accepted
time: 0ms
memory: 3984kb

input:

2 2
100 100
100 100

output:

100.0000000

result:

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

Test #46:

score: 0
Accepted
time: 39ms
memory: 7864kb

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:

0.0000010

result:

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

Test #47:

score: 0
Accepted
time: 47ms
memory: 7924kb

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:

99.9999990

result:

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

Extra Test:

score: 0
Extra Test Passed