QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #760094 | #8027. Sky Garden | segmentfault | AC ✓ | 0ms | 3904kb | C++14 | 707b | 2024-11-18 14:44:31 | 2024-11-18 14:44:32 |
Judging History
answer
#include <bits/stdc++.h>
#define eps 1e-12
using namespace std;
typedef long long ll;
ll n,m,p,q,k;
inline ll cube(ll x){return (x*(x+1)*(2*x+1))/6;}
int main(){
ios::sync_with_stdio(false),cin.tie(0);
cin >> n >> m;
if(m==1){for(int i=-n;i<=n;++i)q+=(1ll*(n-i+1)*(n-i)/2-abs(i));cout<<fixed<<setprecision(10)<<q<<"\n";return 0;}
for(int i=1;i<=m;++i)if(M_PI*i-2.0*m>eps){k = i-1;break;}
ll sumn = (n*(n+1))/2,sumk = k*(k+1),qt = n*n*(n-1)-((n-1)*n*(2*n-1))/3;
q= m*n*(n+1)+sumn*(2*m)*(2*m-(2*k+1))+(cube(n-1)+(n*(n-1))/2)*2*m*m+2*m*(2*m-(2*k+1))*qt;
p=sumk*sumn+k*(k+1)*qt;
cout << fixed << setprecision(10) <<(long double)p*M_PI + q << "\n";
return 0;
}
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: 3792kb
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: 3592kb
input:
1 1
output:
2
result:
ok found '2.0000000', expected '2.0000000', error '0.0000000'
Test #3:
score: 0
Accepted
time: 0ms
memory: 3536kb
input:
500 1
output:
166916500
result:
ok found '166916500.0000000', expected '166916500.0000000', error '0.0000000'
Test #4:
score: 0
Accepted
time: 0ms
memory: 3664kb
input:
500 2
output:
763585309.5613224729
result:
ok found '763585309.5613225', expected '763585309.5613225', error '0.0000000'
Test #5:
score: 0
Accepted
time: 0ms
memory: 3868kb
input:
500 499
output:
49125277129819.3366012573
result:
ok found '49125277129819.3359375', expected '49125277129819.2734375', error '0.0000000'
Test #6:
score: 0
Accepted
time: 0ms
memory: 3796kb
input:
500 500
output:
49322369986259.8371505737
result:
ok found '49322369986259.8359375', expected '49322369986259.6953125', error '0.0000000'
Test #7:
score: 0
Accepted
time: 0ms
memory: 3796kb
input:
252 139
output:
488838606007.1794624329
result:
ok found '488838606007.1794434', expected '488838606007.1795654', error '0.0000000'
Test #8:
score: 0
Accepted
time: 0ms
memory: 3760kb
input:
96 359
output:
181277190205.0371206105
result:
ok found '181277190205.0371094', expected '181277190205.0371094', error '0.0000000'
Test #9:
score: 0
Accepted
time: 0ms
memory: 3860kb
input:
237 487
output:
4992630041184.1960573196
result:
ok found '4992630041184.1962891', expected '4992630041184.1953125', error '0.0000000'
Test #10:
score: 0
Accepted
time: 0ms
memory: 3796kb
input:
81 411
output:
142953582310.2773616761
result:
ok found '142953582310.2773743', expected '142953582310.2773743', error '0.0000000'
Test #11:
score: 0
Accepted
time: 0ms
memory: 3800kb
input:
221 39
output:
25968641931.5297136419
result:
ok found '25968641931.5297127', expected '25968641931.5297089', error '0.0000000'
Test #12:
score: 0
Accepted
time: 0ms
memory: 3804kb
input:
270 259
output:
2087014641700.0213111639
result:
ok found '2087014641700.0212402', expected '2087014641700.0227051', error '0.0000000'
Test #13:
score: 0
Accepted
time: 0ms
memory: 3736kb
input:
422 387
output:
17770193032349.6233978271
result:
ok found '17770193032349.6250000', expected '17770193032349.6250000', error '0.0000000'
Test #14:
score: 0
Accepted
time: 0ms
memory: 3868kb
input:
63 15
output:
89852047.5085170573
result:
ok found '89852047.5085171', expected '89852047.5085171', error '0.0000000'
Test #15:
score: 0
Accepted
time: 0ms
memory: 3784kb
input:
407 439
output:
20515296102923.2057933807
result:
ok found '20515296102923.2070312', expected '20515296102923.2070312', error '0.0000000'
Test #16:
score: 0
Accepted
time: 0ms
memory: 3860kb
input:
18 18
output:
3123573.6956475553
result:
ok found '3123573.6956476', expected '3123573.6956476', error '0.0000000'
Test #17:
score: 0
Accepted
time: 0ms
memory: 3804kb
input:
171 146
output:
168786179167.0193158090
result:
ok found '168786179167.0193176', expected '168786179167.0194092', error '0.0000000'
Test #18:
score: 0
Accepted
time: 0ms
memory: 3904kb
input:
311 70
output:
232875509505.2748287916
result:
ok found '232875509505.2748413', expected '232875509505.2748413', error '0.0000000'
Test #19:
score: 0
Accepted
time: 0ms
memory: 3832kb
input:
155 494
output:
1439825967582.9987126589
result:
ok found '1439825967582.9987793', expected '1439825967582.9992676', error '0.0000000'
Test #20:
score: 0
Accepted
time: 0ms
memory: 3780kb
input:
204 418
output:
2347066265474.4882926941
result:
ok found '2347066265474.4882812', expected '2347066265474.4873047', error '0.0000000'
Test #21:
score: 0
Accepted
time: 0ms
memory: 3808kb
input:
344 46
output:
136054690372.2715012208
result:
ok found '136054690372.2714996', expected '136054690372.2714844', error '0.0000000'
Test #22:
score: 0
Accepted
time: 0ms
memory: 3808kb
input:
188 174
output:
318429902145.0420234799
result:
ok found '318429902145.0420532', expected '318429902145.0420532', error '0.0000000'
Test #23:
score: 0
Accepted
time: 0ms
memory: 3848kb
input:
137 394
output:
632896487876.0314413309
result:
ok found '632896487876.0314941', expected '632896487876.0313721', error '0.0000000'
Test #24:
score: 0
Accepted
time: 0ms
memory: 3848kb
input:
481 22
output:
85020954588.2031021118
result:
ok found '85020954588.2030945', expected '85020954588.2031097', error '0.0000000'
Test #25:
score: 0
Accepted
time: 0ms
memory: 3804kb
input:
30 446
output:
8705279441.3520847484
result:
ok found '8705279441.3520851', expected '8705279441.3520851', error '0.0000000'
Test #26:
score: 0
Accepted
time: 0ms
memory: 3872kb
input:
204 440
output:
2600626525627.9566736221
result:
ok found '2600626525627.9565430', expected '2600626525627.9575195', error '0.0000000'
Test #27:
score: 0
Accepted
time: 0ms
memory: 3848kb
input:
2 3
output:
175.4159265359
result:
ok found '175.4159265', expected '175.4159265', error '0.0000000'
Extra Test:
score: 0
Extra Test Passed