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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 |
|---|---|---|---|---|---|---|---|---|---|
| #762870 | #8027. Sky Garden | hjxhjx | AC ✓ | 0ms | 3968kb | C++14 | 769b | 2024-11-19 17:01:40 | 2024-11-19 17:01:52 |
Judging History
answer
#include <bits/stdc++.h>
#define ll long long
#define debug(...) fprintf(stderr,__VA_ARGS__)
using namespace std;
inline static int read(){
int sum=0,neg=0,ch=getchar();
while(!isdigit(ch)) neg|=(ch=='-'),ch=getchar();
while(isdigit(ch)) sum=sum*10+(ch^48),ch=getchar();
return neg?-sum:sum;
}
constexpr long double pi=3.14159265358979323846L;
ll sum(int l,int r){return (l+r)*(r-l+1ll)/2;}
signed main(){
// freopen("a.in","r",stdin);
// freopen("a.out","w",stdout);
ll n=read(),m=read(),k=2*m/pi,s=sum(1,n),ans,t1=0,t2=0;
for(int i=1;i<=n;i++) t1=(t1+((n-i)*2+1ll)*i),t2=(t2+(n-i)*i);
ans=((m>1?s*2ll*m:0)+(2*k+1ll)*t2*2*m+(2*m-2*k-1ll)*n*s*2*m);
return printf("%.10Lf\n",pi*sum(1,k)*t1/m*2*m+ans),0;
}
这程序好像有点Bug，我给组数据试试？
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 3848kb
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: 3924kb
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: 3956kb
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: 3832kb
input:
500 2
output:
763585309.5613224831
result:
ok found '763585309.5613225', expected '763585309.5613225', error '0.0000000'
Test #5:
score: 0
Accepted
time: 0ms
memory: 3844kb
input:
500 499
output:
49125277129819.3371200562
result:
ok found '49125277129819.3359375', expected '49125277129819.2734375', error '0.0000000'
Test #6:
score: 0
Accepted
time: 0ms
memory: 3856kb
input:
500 500
output:
49322369986259.8376693726
result:
ok found '49322369986259.8359375', expected '49322369986259.6953125', error '0.0000000'
Test #7:
score: 0
Accepted
time: 0ms
memory: 3908kb
input:
252 139
output:
488838606007.1794675887
result:
ok found '488838606007.1794434', expected '488838606007.1795654', error '0.0000000'
Test #8:
score: 0
Accepted
time: 0ms
memory: 3888kb
input:
96 359
output:
181277190205.0371225178
result:
ok found '181277190205.0371094', expected '181277190205.0371094', error '0.0000000'
Test #9:
score: 0
Accepted
time: 0ms
memory: 3856kb
input:
237 487
output:
4992630041184.1961097717
result:
ok found '4992630041184.1962891', expected '4992630041184.1953125', error '0.0000000'
Test #10:
score: 0
Accepted
time: 0ms
memory: 3856kb
input:
81 411
output:
142953582310.2773631811
result:
ok found '142953582310.2773743', expected '142953582310.2773743', error '0.0000000'
Test #11:
score: 0
Accepted
time: 0ms
memory: 3900kb
input:
221 39
output:
25968641931.5297139082
result:
ok found '25968641931.5297127', expected '25968641931.5297089', error '0.0000000'
Test #12:
score: 0
Accepted
time: 0ms
memory: 3804kb
input:
270 259
output:
2087014641700.0213329792
result:
ok found '2087014641700.0212402', expected '2087014641700.0227051', error '0.0000000'
Test #13:
score: 0
Accepted
time: 0ms
memory: 3860kb
input:
422 387
output:
17770193032349.6235847473
result:
ok found '17770193032349.6250000', expected '17770193032349.6250000', error '0.0000000'
Test #14:
score: 0
Accepted
time: 0ms
memory: 3776kb
input:
63 15
output:
89852047.5085170583
result:
ok found '89852047.5085171', expected '89852047.5085171', error '0.0000000'
Test #15:
score: 0
Accepted
time: 0ms
memory: 3808kb
input:
407 439
output:
20515296102923.2060089111
result:
ok found '20515296102923.2070312', expected '20515296102923.2070312', error '0.0000000'
Test #16:
score: 0
Accepted
time: 0ms
memory: 3772kb
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: 3912kb
input:
171 146
output:
168786179167.0193175673
result:
ok found '168786179167.0193176', expected '168786179167.0194092', error '0.0000000'
Test #18:
score: 0
Accepted
time: 0ms
memory: 3832kb
input:
311 70
output:
232875509505.2748312354
result:
ok found '232875509505.2748413', expected '232875509505.2748413', error '0.0000000'
Test #19:
score: 0
Accepted
time: 0ms
memory: 3900kb
input:
155 494
output:
1439825967582.9987277985
result:
ok found '1439825967582.9987793', expected '1439825967582.9992676', error '0.0000000'
Test #20:
score: 0
Accepted
time: 0ms
memory: 3772kb
input:
204 418
output:
2347066265474.4883174896
result:
ok found '2347066265474.4882812', expected '2347066265474.4873047', error '0.0000000'
Test #21:
score: 0
Accepted
time: 0ms
memory: 3844kb
input:
344 46
output:
136054690372.2715026736
result:
ok found '136054690372.2714996', expected '136054690372.2714844', error '0.0000000'
Test #22:
score: 0
Accepted
time: 0ms
memory: 3828kb
input:
188 174
output:
318429902145.0420268178
result:
ok found '318429902145.0420532', expected '318429902145.0420532', error '0.0000000'
Test #23:
score: 0
Accepted
time: 0ms
memory: 3864kb
input:
137 394
output:
632896487876.0314480066
result:
ok found '632896487876.0314941', expected '632896487876.0313721', error '0.0000000'
Test #24:
score: 0
Accepted
time: 0ms
memory: 3848kb
input:
481 22
output:
85020954588.2031030655
result:
ok found '85020954588.2031097', expected '85020954588.2031097', error '0.0000000'
Test #25:
score: 0
Accepted
time: 0ms
memory: 3968kb
input:
30 446
output:
8705279441.3520848416
result:
ok found '8705279441.3520851', expected '8705279441.3520851', error '0.0000000'
Test #26:
score: 0
Accepted
time: 0ms
memory: 3776kb
input:
204 440
output:
2600626525627.9567010403
result:
ok found '2600626525627.9565430', expected '2600626525627.9575195', error '0.0000000'
Test #27:
score: 0
Accepted
time: 0ms
memory: 3892kb
input:
2 3
output:
175.4159265359
result:
ok found '175.4159265', expected '175.4159265', error '0.0000000'
Extra Test:
score: 0
Extra Test Passed