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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 |
---|---|---|---|---|---|---|---|---|---|
#430396 | #8774. Manhattan Walk | Afterlife# | AC ✓ | 18ms | 11776kb | C++20 | 905b | 2024-06-03 19:37:32 | 2024-06-03 19:37:32 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int n , m , p;
double f[1005][1005];
int main() {
cin >> n >> m >> p ;
for(int i = 1;i <= n;i++) f[i][m + 1] = 1e18;
for(int i = 1;i <= m;i++) f[n + 1][i] = 1e18;
for(int i = n;i >= 1;i--) {
for(int j = m ; j >= 1;j--) {
if(i == n && j == m) {
f[i][j] = 0 ; continue ;
}
double a = f[i + 1][j] , b = f[i][j + 1];
double del = max(a , b) - min(a , b);
if(del >= p) {
f[i][j] = 0.5 * min(a , b) + 0.5 * (min(a , b) + p / 2.0) ;
}
else {
f[i][j] = 0.5 * min(a , b) + 0.5 * (min(a,b) + del / p * del / 2 + (1 - del / p) * del) ;
}
// printf("%d %d %lf\n",i,j,f[i][j]) ;
}
}
printf("%.12lf\n",f[1][1]) ;
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 1ms
memory: 3804kb
input:
2 3 8
output:
2.875000000000
result:
ok found '2.8750000', expected '2.8750000', error '0.0000000'
Test #2:
score: 0
Accepted
time: 0ms
memory: 3892kb
input:
5 5 5
output:
2.432233868874
result:
ok found '2.4322339', expected '2.4322339', error '0.0000000'
Test #3:
score: 0
Accepted
time: 1ms
memory: 3988kb
input:
1 1 1
output:
0.000000000000
result:
ok found '0.0000000', expected '0.0000000', error '-0.0000000'
Test #4:
score: 0
Accepted
time: 18ms
memory: 11776kb
input:
1000 1000 1000000000
output:
1782317138.808374881744
result:
ok found '1782317138.8083749', expected '1782317138.8083761', error '0.0000000'
Test #5:
score: 0
Accepted
time: 0ms
memory: 3860kb
input:
1 4 5
output:
3.750000000000
result:
ok found '3.7500000', expected '3.7500000', error '0.0000000'
Test #6:
score: 0
Accepted
time: 0ms
memory: 3944kb
input:
4 1 5
output:
3.750000000000
result:
ok found '3.7500000', expected '3.7500000', error '0.0000000'
Test #7:
score: 0
Accepted
time: 0ms
memory: 3852kb
input:
1 1 1000000000
output:
0.000000000000
result:
ok found '0.0000000', expected '0.0000000', error '-0.0000000'
Test #8:
score: 0
Accepted
time: 0ms
memory: 3864kb
input:
1 2 1000000000
output:
250000000.000000000000
result:
ok found '250000000.0000000', expected '250000000.0000000', error '0.0000000'
Test #9:
score: 0
Accepted
time: 1ms
memory: 3932kb
input:
2 1 1000000000
output:
250000000.000000000000
result:
ok found '250000000.0000000', expected '250000000.0000000', error '0.0000000'
Test #10:
score: 0
Accepted
time: 0ms
memory: 3912kb
input:
1 2 1
output:
0.250000000000
result:
ok found '0.2500000', expected '0.2500000', error '0.0000000'
Test #11:
score: 0
Accepted
time: 0ms
memory: 3876kb
input:
2 1 1
output:
0.250000000000
result:
ok found '0.2500000', expected '0.2500000', error '0.0000000'
Test #12:
score: 0
Accepted
time: 0ms
memory: 3876kb
input:
1 10 3
output:
6.750000000000
result:
ok found '6.7500000', expected '6.7500000', error '0.0000000'
Test #13:
score: 0
Accepted
time: 1ms
memory: 3892kb
input:
10 1 3
output:
6.750000000000
result:
ok found '6.7500000', expected '6.7500000', error '0.0000000'
Test #14:
score: 0
Accepted
time: 14ms
memory: 11708kb
input:
997 993 998244353
output:
1779941051.346163272858
result:
ok found '1779941051.3461633', expected '1779941051.3461628', error '0.0000000'
Test #15:
score: 0
Accepted
time: 3ms
memory: 11348kb
input:
988 313 886183312
output:
78753022570.483306884766
result:
ok found '78753022570.4833069', expected '78753022570.4833527', error '0.0000000'
Test #16:
score: 0
Accepted
time: 4ms
memory: 9608kb
input:
583 286 322190846
output:
8636356976.843715667725
result:
ok found '8636356976.8437157', expected '8636356976.8437138', error '0.0000000'
Test #17:
score: 0
Accepted
time: 8ms
memory: 11100kb
input:
892 468 494964816
output:
17125998682.729244232178
result:
ok found '17125998682.7292442', expected '17125998682.7292328', error '0.0000000'
Test #18:
score: 0
Accepted
time: 1ms
memory: 5972kb
input:
26 882 386682745
output:
78231677700.750488281250
result:
ok found '78231677700.7504883', expected '78231677700.7504883', error '0.0000000'
Test #19:
score: 0
Accepted
time: 14ms
memory: 11252kb
input:
867 926 422131798
output:
945100500.399107694626
result:
ok found '945100500.3991077', expected '945100500.3991071', error '0.0000000'
Test #20:
score: 0
Accepted
time: 1ms
memory: 4100kb
input:
37 68 19
output:
62.284459880159
result:
ok found '62.2844599', expected '62.2844599', error '0.0000000'
Test #21:
score: 0
Accepted
time: 1ms
memory: 4076kb
input:
23 90 80
output:
860.050698735791
result:
ok found '860.0506987', expected '860.0506987', error '0.0000000'
Test #22:
score: 0
Accepted
time: 1ms
memory: 6084kb
input:
43 55 85
output:
118.389267967564
result:
ok found '118.3892680', expected '118.3892680', error '0.0000000'
Test #23:
score: 0
Accepted
time: 1ms
memory: 4328kb
input:
93 66 43
output:
97.904840858751
result:
ok found '97.9048409', expected '97.9048409', error '0.0000000'
Test #24:
score: 0
Accepted
time: 1ms
memory: 4348kb
input:
78 93 30
output:
44.845452326451
result:
ok found '44.8454523', expected '44.8454523', error '0.0000000'
Test #25:
score: 0
Accepted
time: 0ms
memory: 4000kb
input:
9 5 481032867
output:
400507342.366738259792
result:
ok found '400507342.3667383', expected '400507342.3667384', error '0.0000000'
Test #26:
score: 0
Accepted
time: 2ms
memory: 7140kb
input:
366 73 3
output:
149.486464233096
result:
ok found '149.4864642', expected '149.4864642', error '0.0000000'
Test #27:
score: 0
Accepted
time: 0ms
memory: 3984kb
input:
6 4 5
output:
2.894645169729
result:
ok found '2.8946452', expected '2.8946452', error '0.0000000'
Test #28:
score: 0
Accepted
time: 0ms
memory: 3992kb
input:
8 10 5
output:
3.397360852475
result:
ok found '3.3973609', expected '3.3973609', error '0.0000000'
Test #29:
score: 0
Accepted
time: 0ms
memory: 3908kb
input:
10 1 7
output:
15.750000000000
result:
ok found '15.7500000', expected '15.7500000', error '0.0000000'
Test #30:
score: 0
Accepted
time: 0ms
memory: 3908kb
input:
10 7 10
output:
7.371646607394
result:
ok found '7.3716466', expected '7.3716466', error '0.0000000'
Test #31:
score: 0
Accepted
time: 0ms
memory: 3932kb
input:
2 8 1
output:
1.327106919466
result:
ok found '1.3271069', expected '1.3271069', error '0.0000000'