QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #762584 | #8027. Sky Garden | zhicheng | AC ✓ | 0ms | 1668kb | C++14 | 379b | 2024-11-19 15:38:02 | 2024-11-19 15:38:10 |
Judging History
answer
#include<cstdio>
#include<cmath>
#define db double
const db pi=acos(-1);
int main(){
int n,m,lim;
db ans=0,now,invm;
scanf("%d%d",&n,&m);
invm=1.0/m;
lim=2*m/pi;
if(m!=1){
ans=1ll*n*(n+1)*m;
}
for(int i=1;i<=n;i++){
now=1ll*lim*(lim+1)*i*invm*pi+2ll*i*(2*m-2*lim-1);
ans=ans+((now*(n-i+1)+1ll*(n-i)*(n-i+1)*m)*2-now)*m;
}
printf("%.10lf",ans);
}
这程序好像有点Bug，我给组数据试试？
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 1652kb
input:
1 2
output:
14.2831853072
result:
ok found '14.2831853', expected '14.2831853', error '0.0000000'
Test #2:
score: 0
Accepted
time: 0ms
memory: 1608kb
input:
1 1
output:
2.0000000000
result:
ok found '2.0000000', expected '2.0000000', error '0.0000000'
Test #3:
score: 0
Accepted
time: 0ms
memory: 1608kb
input:
500 1
output:
166916500.0000000000
result:
ok found '166916500.0000000', expected '166916500.0000000', error '0.0000000'
Test #4:
score: 0
Accepted
time: 0ms
memory: 1592kb
input:
500 2
output:
763585309.5613229275
result:
ok found '763585309.5613229', expected '763585309.5613225', error '0.0000000'
Test #5:
score: 0
Accepted
time: 0ms
memory: 1660kb
input:
500 499
output:
49125277129819.2812500000
result:
ok found '49125277129819.2812500', expected '49125277129819.2734375', error '0.0000000'
Test #6:
score: 0
Accepted
time: 0ms
memory: 1592kb
input:
500 500
output:
49322369986259.8203125000
result:
ok found '49322369986259.8203125', expected '49322369986259.6953125', error '0.0000000'
Test #7:
score: 0
Accepted
time: 0ms
memory: 1580kb
input:
252 139
output:
488838606007.1798095703
result:
ok found '488838606007.1798096', expected '488838606007.1795654', error '0.0000000'
Test #8:
score: 0
Accepted
time: 0ms
memory: 1612kb
input:
96 359
output:
181277190205.0370178223
result:
ok found '181277190205.0370178', expected '181277190205.0371094', error '0.0000000'
Test #9:
score: 0
Accepted
time: 0ms
memory: 1576kb
input:
237 487
output:
4992630041184.1943359375
result:
ok found '4992630041184.1943359', expected '4992630041184.1953125', error '0.0000000'
Test #10:
score: 0
Accepted
time: 0ms
memory: 1656kb
input:
81 411
output:
142953582310.2773437500
result:
ok found '142953582310.2773438', expected '142953582310.2773743', error '0.0000000'
Test #11:
score: 0
Accepted
time: 0ms
memory: 1576kb
input:
221 39
output:
25968641931.5297241211
result:
ok found '25968641931.5297241', expected '25968641931.5297089', error '0.0000000'
Test #12:
score: 0
Accepted
time: 0ms
memory: 1600kb
input:
270 259
output:
2087014641700.0214843750
result:
ok found '2087014641700.0214844', expected '2087014641700.0227051', error '0.0000000'
Test #13:
score: 0
Accepted
time: 0ms
memory: 1664kb
input:
422 387
output:
17770193032349.6250000000
result:
ok found '17770193032349.6250000', expected '17770193032349.6250000', error '0.0000000'
Test #14:
score: 0
Accepted
time: 0ms
memory: 1656kb
input:
63 15
output:
89852047.5085170567
result:
ok found '89852047.5085171', expected '89852047.5085171', error '0.0000000'
Test #15:
score: 0
Accepted
time: 0ms
memory: 1644kb
input:
407 439
output:
20515296102923.2031250000
result:
ok found '20515296102923.2031250', expected '20515296102923.2070312', error '0.0000000'
Test #16:
score: 0
Accepted
time: 0ms
memory: 1576kb
input:
18 18
output:
3123573.6956475554
result:
ok found '3123573.6956476', expected '3123573.6956476', error '0.0000000'
Test #17:
score: 0
Accepted
time: 0ms
memory: 1592kb
input:
171 146
output:
168786179167.0193786621
result:
ok found '168786179167.0193787', expected '168786179167.0194092', error '0.0000000'
Test #18:
score: 0
Accepted
time: 0ms
memory: 1668kb
input:
311 70
output:
232875509505.2749023438
result:
ok found '232875509505.2749023', expected '232875509505.2748413', error '0.0000000'
Test #19:
score: 0
Accepted
time: 0ms
memory: 1608kb
input:
155 494
output:
1439825967582.9992675781
result:
ok found '1439825967582.9992676', expected '1439825967582.9992676', error '0.0000000'
Test #20:
score: 0
Accepted
time: 0ms
memory: 1636kb
input:
204 418
output:
2347066265474.4868164062
result:
ok found '2347066265474.4868164', expected '2347066265474.4873047', error '0.0000000'
Test #21:
score: 0
Accepted
time: 0ms
memory: 1664kb
input:
344 46
output:
136054690372.2715606689
result:
ok found '136054690372.2715607', expected '136054690372.2714844', error '0.0000000'
Test #22:
score: 0
Accepted
time: 0ms
memory: 1584kb
input:
188 174
output:
318429902145.0416870117
result:
ok found '318429902145.0416870', expected '318429902145.0420532', error '0.0000000'
Test #23:
score: 0
Accepted
time: 0ms
memory: 1612kb
input:
137 394
output:
632896487876.0312500000
result:
ok found '632896487876.0312500', expected '632896487876.0313721', error '0.0000000'
Test #24:
score: 0
Accepted
time: 0ms
memory: 1652kb
input:
481 22
output:
85020954588.2031860352
result:
ok found '85020954588.2031860', expected '85020954588.2031097', error '0.0000000'
Test #25:
score: 0
Accepted
time: 0ms
memory: 1612kb
input:
30 446
output:
8705279441.3520851135
result:
ok found '8705279441.3520851', expected '8705279441.3520851', error '0.0000000'
Test #26:
score: 0
Accepted
time: 0ms
memory: 1620kb
input:
204 440
output:
2600626525627.9550781250
result:
ok found '2600626525627.9550781', expected '2600626525627.9575195', error '0.0000000'
Test #27:
score: 0
Accepted
time: 0ms
memory: 1632kb
input:
2 3
output:
175.4159265359
result:
ok found '175.4159265', expected '175.4159265', error '0.0000000'
Extra Test:
score: 0
Extra Test Passed