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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 |
---|---|---|---|---|---|---|---|---|---|
#456348 | #8774. Manhattan Walk | ucup-team2307# | AC ✓ | 12ms | 22580kb | C++20 | 1.1kb | 2024-06-27 19:18:19 | 2024-06-27 19:18:19 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
//#define int ll
#define rep(i, a, b) for(int i = a; i < (b); ++i)
#define all(x) begin(x), end(x)
#define sz(x) (int)(x).size()
using pii = pair<int, int>;
using vi = vector<int>;
#define fi first
#define se second
#define pb push_back
const int N = 2222;
double p;
double dp[N][N];
double f(int n, int m)
{
if (n > m) swap(n, m);
if (dp[n][m] > -0.1)
return dp[n][m];
if (n==1 && m==1) return 0;
if (n == 1) return dp[n][m] = f(n, m-1)+p/4;
double a = f(n, m-1);
double b = f(n-1, m);
if (a > b) swap(a, b);
double h = b-a;
double ans = 0;
ans += 0;
ans += p/2 - (p-h)*max<double>(0, (1-h/p))/2;
return dp[n][m] = ans/2+a;
}
signed main() {
cin.tie(0)->sync_with_stdio(0);
cin.exceptions(cin.failbit);
int n, m;
cin>>n>>m>>p;
for (int i=1; i<=max(n, m); i++)
for (int j=1; j<=max(n, m); j++)
dp[i][j] = -1;
cout<<fixed<<setprecision(10);
cout<<f(n, m)<<"\n";
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 3820kb
input:
2 3 8
output:
2.8750000000
result:
ok found '2.8750000', expected '2.8750000', error '0.0000000'
Test #2:
score: 0
Accepted
time: 0ms
memory: 3824kb
input:
5 5 5
output:
2.4322338689
result:
ok found '2.4322339', expected '2.4322339', error '0.0000000'
Test #3:
score: 0
Accepted
time: 0ms
memory: 3756kb
input:
1 1 1
output:
0.0000000000
result:
ok found '0.0000000', expected '0.0000000', error '-0.0000000'
Test #4:
score: 0
Accepted
time: 12ms
memory: 21456kb
input:
1000 1000 1000000000
output:
1782317138.8083751202
result:
ok found '1782317138.8083751', expected '1782317138.8083761', error '0.0000000'
Test #5:
score: 0
Accepted
time: 0ms
memory: 3876kb
input:
1 4 5
output:
3.7500000000
result:
ok found '3.7500000', expected '3.7500000', error '0.0000000'
Test #6:
score: 0
Accepted
time: 0ms
memory: 3820kb
input:
4 1 5
output:
3.7500000000
result:
ok found '3.7500000', expected '3.7500000', error '0.0000000'
Test #7:
score: 0
Accepted
time: 0ms
memory: 5772kb
input:
1 1 1000000000
output:
0.0000000000
result:
ok found '0.0000000', expected '0.0000000', error '-0.0000000'
Test #8:
score: 0
Accepted
time: 0ms
memory: 3756kb
input:
1 2 1000000000
output:
250000000.0000000000
result:
ok found '250000000.0000000', expected '250000000.0000000', error '0.0000000'
Test #9:
score: 0
Accepted
time: 0ms
memory: 3884kb
input:
2 1 1000000000
output:
250000000.0000000000
result:
ok found '250000000.0000000', expected '250000000.0000000', error '0.0000000'
Test #10:
score: 0
Accepted
time: 0ms
memory: 3752kb
input:
1 2 1
output:
0.2500000000
result:
ok found '0.2500000', expected '0.2500000', error '0.0000000'
Test #11:
score: 0
Accepted
time: 0ms
memory: 3756kb
input:
2 1 1
output:
0.2500000000
result:
ok found '0.2500000', expected '0.2500000', error '0.0000000'
Test #12:
score: 0
Accepted
time: 0ms
memory: 3904kb
input:
1 10 3
output:
6.7500000000
result:
ok found '6.7500000', expected '6.7500000', error '0.0000000'
Test #13:
score: 0
Accepted
time: 0ms
memory: 3784kb
input:
10 1 3
output:
6.7500000000
result:
ok found '6.7500000', expected '6.7500000', error '0.0000000'
Test #14:
score: 0
Accepted
time: 12ms
memory: 22580kb
input:
997 993 998244353
output:
1779941051.3461627960
result:
ok found '1779941051.3461628', expected '1779941051.3461628', error '0.0000000'
Test #15:
score: 0
Accepted
time: 7ms
memory: 20860kb
input:
988 313 886183312
output:
78753022570.4833221436
result:
ok found '78753022570.4833221', expected '78753022570.4833527', error '0.0000000'
Test #16:
score: 0
Accepted
time: 5ms
memory: 14556kb
input:
583 286 322190846
output:
8636356976.8437137604
result:
ok found '8636356976.8437138', expected '8636356976.8437138', error '0.0000000'
Test #17:
score: 0
Accepted
time: 11ms
memory: 20912kb
input:
892 468 494964816
output:
17125998682.7292366028
result:
ok found '17125998682.7292366', expected '17125998682.7292328', error '0.0000000'
Test #18:
score: 0
Accepted
time: 0ms
memory: 19040kb
input:
26 882 386682745
output:
78231677700.7504272461
result:
ok found '78231677700.7504272', expected '78231677700.7504883', error '0.0000000'
Test #19:
score: 0
Accepted
time: 10ms
memory: 21188kb
input:
867 926 422131798
output:
945100500.3991078138
result:
ok found '945100500.3991078', expected '945100500.3991071', error '0.0000000'
Test #20:
score: 0
Accepted
time: 0ms
memory: 5932kb
input:
37 68 19
output:
62.2844598802
result:
ok found '62.2844599', expected '62.2844599', error '0.0000000'
Test #21:
score: 0
Accepted
time: 0ms
memory: 4296kb
input:
23 90 80
output:
860.0506987358
result:
ok found '860.0506987', expected '860.0506987', error '0.0000000'
Test #22:
score: 0
Accepted
time: 0ms
memory: 6180kb
input:
43 55 85
output:
118.3892679676
result:
ok found '118.3892680', expected '118.3892680', error '0.0000000'
Test #23:
score: 0
Accepted
time: 1ms
memory: 6144kb
input:
93 66 43
output:
97.9048408588
result:
ok found '97.9048409', expected '97.9048409', error '0.0000000'
Test #24:
score: 0
Accepted
time: 1ms
memory: 6280kb
input:
78 93 30
output:
44.8454523265
result:
ok found '44.8454523', expected '44.8454523', error '0.0000000'
Test #25:
score: 0
Accepted
time: 1ms
memory: 5744kb
input:
9 5 481032867
output:
400507342.3667383194
result:
ok found '400507342.3667383', expected '400507342.3667384', error '0.0000000'
Test #26:
score: 0
Accepted
time: 2ms
memory: 10852kb
input:
366 73 3
output:
149.4864642331
result:
ok found '149.4864642', expected '149.4864642', error '0.0000000'
Test #27:
score: 0
Accepted
time: 0ms
memory: 3968kb
input:
6 4 5
output:
2.8946451697
result:
ok found '2.8946452', expected '2.8946452', error '0.0000000'
Test #28:
score: 0
Accepted
time: 1ms
memory: 5876kb
input:
8 10 5
output:
3.3973608525
result:
ok found '3.3973609', expected '3.3973609', error '0.0000000'
Test #29:
score: 0
Accepted
time: 0ms
memory: 3852kb
input:
10 1 7
output:
15.7500000000
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:
7.3716466074
result:
ok found '7.3716466', expected '7.3716466', error '0.0000000'
Test #31:
score: 0
Accepted
time: 0ms
memory: 3756kb
input:
2 8 1
output:
1.3271069195
result:
ok found '1.3271069', expected '1.3271069', error '0.0000000'