QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#427893 | #8774. Manhattan Walk | ucup-team3215# | AC ✓ | 16ms | 11732kb | C++20 | 606b | 2024-06-01 16:21:27 | 2024-06-01 16:21:27 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
constexpr int N = 1e3;
double dp[N][N];
int main() {
cin.tie(0)->sync_with_stdio(0);
int r, c, p; cin >> r >> c >> p;
for (int i = 0; i < r; ++i)
for (int j = 0; j < c; ++j) {
if (!i && !j) continue;
if (!i || !j) {
dp[i][j] = dp[i - !!i][j - !!j] + p / 4.;
continue;
}
double a = dp[i - 1][j], b = dp[i][j - 1];
if (a > b) swap(a, b);
dp[i][j] = a / 2 + (a + b) / 2 * (b - a) / 2 / p + b * (p - (b - a)) / 2 / p;
}
cout.precision(20);
cout << fixed << dp[r - 1][c - 1] << '\n';
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 3936kb
input:
2 3 8
output:
2.87500000000000000000
result:
ok found '2.8750000', expected '2.8750000', error '0.0000000'
Test #2:
score: 0
Accepted
time: 0ms
memory: 3948kb
input:
5 5 5
output:
2.43223386887388137723
result:
ok found '2.4322339', expected '2.4322339', error '0.0000000'
Test #3:
score: 0
Accepted
time: 0ms
memory: 3912kb
input:
1 1 1
output:
0.00000000000000000000
result:
ok found '0.0000000', expected '0.0000000', error '-0.0000000'
Test #4:
score: 0
Accepted
time: 12ms
memory: 11732kb
input:
1000 1000 1000000000
output:
1782317138.80837655067443847656
result:
ok found '1782317138.8083766', expected '1782317138.8083761', error '0.0000000'
Test #5:
score: 0
Accepted
time: 0ms
memory: 3736kb
input:
1 4 5
output:
3.75000000000000000000
result:
ok found '3.7500000', expected '3.7500000', error '0.0000000'
Test #6:
score: 0
Accepted
time: 0ms
memory: 3868kb
input:
4 1 5
output:
3.75000000000000000000
result:
ok found '3.7500000', expected '3.7500000', error '0.0000000'
Test #7:
score: 0
Accepted
time: 0ms
memory: 3796kb
input:
1 1 1000000000
output:
0.00000000000000000000
result:
ok found '0.0000000', expected '0.0000000', error '-0.0000000'
Test #8:
score: 0
Accepted
time: 0ms
memory: 3920kb
input:
1 2 1000000000
output:
250000000.00000000000000000000
result:
ok found '250000000.0000000', expected '250000000.0000000', error '0.0000000'
Test #9:
score: 0
Accepted
time: 0ms
memory: 3804kb
input:
2 1 1000000000
output:
250000000.00000000000000000000
result:
ok found '250000000.0000000', expected '250000000.0000000', error '0.0000000'
Test #10:
score: 0
Accepted
time: 0ms
memory: 3928kb
input:
1 2 1
output:
0.25000000000000000000
result:
ok found '0.2500000', expected '0.2500000', error '0.0000000'
Test #11:
score: 0
Accepted
time: 0ms
memory: 3824kb
input:
2 1 1
output:
0.25000000000000000000
result:
ok found '0.2500000', expected '0.2500000', error '0.0000000'
Test #12:
score: 0
Accepted
time: 0ms
memory: 3732kb
input:
1 10 3
output:
6.75000000000000000000
result:
ok found '6.7500000', expected '6.7500000', error '0.0000000'
Test #13:
score: 0
Accepted
time: 0ms
memory: 3896kb
input:
10 1 3
output:
6.75000000000000000000
result:
ok found '6.7500000', expected '6.7500000', error '0.0000000'
Test #14:
score: 0
Accepted
time: 16ms
memory: 11712kb
input:
997 993 998244353
output:
1779941051.34616279602050781250
result:
ok found '1779941051.3461628', expected '1779941051.3461628', error '0.0000000'
Test #15:
score: 0
Accepted
time: 0ms
memory: 11312kb
input:
988 313 886183312
output:
78753022570.48330688476562500000
result:
ok found '78753022570.4833069', expected '78753022570.4833527', error '0.0000000'
Test #16:
score: 0
Accepted
time: 0ms
memory: 9440kb
input:
583 286 322190846
output:
8636356976.84371566772460937500
result:
ok found '8636356976.8437157', expected '8636356976.8437138', error '0.0000000'
Test #17:
score: 0
Accepted
time: 2ms
memory: 10756kb
input:
892 468 494964816
output:
17125998682.72924041748046875000
result:
ok found '17125998682.7292404', expected '17125998682.7292328', error '0.0000000'
Test #18:
score: 0
Accepted
time: 1ms
memory: 4080kb
input:
26 882 386682745
output:
78231677700.75047302246093750000
result:
ok found '78231677700.7504730', expected '78231677700.7504883', error '0.0000000'
Test #19:
score: 0
Accepted
time: 8ms
memory: 10924kb
input:
867 926 422131798
output:
945100500.39910769462585449219
result:
ok found '945100500.3991077', expected '945100500.3991071', error '0.0000000'
Test #20:
score: 0
Accepted
time: 0ms
memory: 4092kb
input:
37 68 19
output:
62.28445988015903367341
result:
ok found '62.2844599', expected '62.2844599', error '0.0000000'
Test #21:
score: 0
Accepted
time: 1ms
memory: 4072kb
input:
23 90 80
output:
860.05069873579111572326
result:
ok found '860.0506987', expected '860.0506987', error '0.0000000'
Test #22:
score: 0
Accepted
time: 1ms
memory: 4100kb
input:
43 55 85
output:
118.38926796756416592871
result:
ok found '118.3892680', expected '118.3892680', error '0.0000000'
Test #23:
score: 0
Accepted
time: 1ms
memory: 6128kb
input:
93 66 43
output:
97.90484085875107211905
result:
ok found '97.9048409', expected '97.9048409', error '0.0000000'
Test #24:
score: 0
Accepted
time: 1ms
memory: 4304kb
input:
78 93 30
output:
44.84545232645059797960
result:
ok found '44.8454523', expected '44.8454523', error '0.0000000'
Test #25:
score: 0
Accepted
time: 0ms
memory: 3768kb
input:
9 5 481032867
output:
400507342.36673831939697265625
result:
ok found '400507342.3667383', expected '400507342.3667384', error '0.0000000'
Test #26:
score: 0
Accepted
time: 1ms
memory: 6456kb
input:
366 73 3
output:
149.48646423309600095308
result:
ok found '149.4864642', expected '149.4864642', error '0.0000000'
Test #27:
score: 0
Accepted
time: 0ms
memory: 3948kb
input:
6 4 5
output:
2.89464516972875829381
result:
ok found '2.8946452', expected '2.8946452', error '0.0000000'
Test #28:
score: 0
Accepted
time: 1ms
memory: 3912kb
input:
8 10 5
output:
3.39736085247490882111
result:
ok found '3.3973609', expected '3.3973609', error '0.0000000'
Test #29:
score: 0
Accepted
time: 0ms
memory: 3960kb
input:
10 1 7
output:
15.75000000000000000000
result:
ok found '15.7500000', expected '15.7500000', error '0.0000000'
Test #30:
score: 0
Accepted
time: 0ms
memory: 3792kb
input:
10 7 10
output:
7.37164660739414223656
result:
ok found '7.3716466', expected '7.3716466', error '0.0000000'
Test #31:
score: 0
Accepted
time: 0ms
memory: 3872kb
input:
2 8 1
output:
1.32710691946578207556
result:
ok found '1.3271069', expected '1.3271069', error '0.0000000'