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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 |
|---|---|---|---|---|---|---|---|---|---|
| #464677 | #8774. Manhattan Walk | ucup-team1525# | AC ✓ | 18ms | 11776kb | C++17 | 540b | 2024-07-06 13:42:43 | 2024-07-06 13:42:45 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
using f64=double;
const int N=1e3;
int r,c,p;
f64 f[N+5][N+5];
int main(){
scanf("%d %d %d",&r,&c,&p);
f[1][1]=0;
for(int i=1;i<=r;i++)
for(int j=1;j<=c;j++){
if(i>1||j>1) f[i][j]=1.0*p*r*c;
if(i>1&&j>1){
f64 x=f[i-1][j],y=f[i][j-1];
if(x>y) swap(x,y);
f[i][j]=(x+(y-x)/p*(x+(y-x)/2)+(p+x-y)/p*y)/2;
}
if(i>1) f[i][j]=min(f[i][j],f[i-1][j]+p/4.0);
if(j>1) f[i][j]=min(f[i][j],f[i][j-1]+p/4.0);
}
printf("%.12lf\n",f[r][c]);
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 3868kb
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: 3884kb
input:
5 5 5
output:
2.432233868874
result:
ok found '2.4322339', expected '2.4322339', error '0.0000000'
Test #3:
score: 0
Accepted
time: 0ms
memory: 3796kb
input:
1 1 1
output:
0.000000000000
result:
ok found '0.0000000', expected '0.0000000', error '-0.0000000'
Test #4:
score: 0
Accepted
time: 14ms
memory: 11776kb
input:
1000 1000 1000000000
output:
1782317138.808375358582
result:
ok found '1782317138.8083754', expected '1782317138.8083761', error '0.0000000'
Test #5:
score: 0
Accepted
time: 0ms
memory: 3920kb
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: 3880kb
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: 3952kb
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: 3924kb
input:
1 2 1000000000
output:
250000000.000000000000
result:
ok found '250000000.0000000', expected '250000000.0000000', error '0.0000000'
Test #9:
score: 0
Accepted
time: 0ms
memory: 3880kb
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: 3892kb
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: 3880kb
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: 3888kb
input:
1 10 3
output:
6.750000000000
result:
ok found '6.7500000', expected '6.7500000', error '0.0000000'
Test #13:
score: 0
Accepted
time: 0ms
memory: 3920kb
input:
10 1 3
output:
6.750000000000
result:
ok found '6.7500000', expected '6.7500000', error '0.0000000'
Test #14:
score: 0
Accepted
time: 18ms
memory: 11704kb
input:
997 993 998244353
output:
1779941051.346163988113
result:
ok found '1779941051.3461640', expected '1779941051.3461628', error '0.0000000'
Test #15:
score: 0
Accepted
time: 7ms
memory: 11380kb
input:
988 313 886183312
output:
78753022570.483459472656
result:
ok found '78753022570.4834595', expected '78753022570.4833527', error '0.0000000'
Test #16:
score: 0
Accepted
time: 4ms
memory: 8716kb
input:
583 286 322190846
output:
8636356976.843698501587
result:
ok found '8636356976.8436985', expected '8636356976.8437138', error '0.0000000'
Test #17:
score: 0
Accepted
time: 8ms
memory: 10936kb
input:
892 468 494964816
output:
17125998682.729261398315
result:
ok found '17125998682.7292614', expected '17125998682.7292328', error '0.0000000'
Test #18:
score: 0
Accepted
time: 1ms
memory: 4072kb
input:
26 882 386682745
output:
78231677700.750122070312
result:
ok found '78231677700.7501221', expected '78231677700.7504883', error '0.0000000'
Test #19:
score: 0
Accepted
time: 15ms
memory: 10696kb
input:
867 926 422131798
output:
945100500.399106979370
result:
ok found '945100500.3991070', expected '945100500.3991071', error '0.0000000'
Test #20:
score: 0
Accepted
time: 1ms
memory: 6032kb
input:
37 68 19
output:
62.284459880159
result:
ok found '62.2844599', expected '62.2844599', error '0.0000000'
Test #21:
score: 0
Accepted
time: 0ms
memory: 4056kb
input:
23 90 80
output:
860.050698735791
result:
ok found '860.0506987', expected '860.0506987', error '0.0000000'
Test #22:
score: 0
Accepted
time: 0ms
memory: 4140kb
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: 4292kb
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: 4236kb
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: 3916kb
input:
9 5 481032867
output:
400507342.366738319397
result:
ok found '400507342.3667383', expected '400507342.3667384', error '0.0000000'
Test #26:
score: 0
Accepted
time: 1ms
memory: 6940kb
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: 3896kb
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: 3912kb
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: 3828kb
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: 3852kb
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: 3888kb
input:
2 8 1
output:
1.327106919466
result:
ok found '1.3271069', expected '1.3271069', error '0.0000000'