QOJ.ac
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 |
|---|---|---|---|---|---|---|---|---|---|
| #799384 | #9855. Glass Bead Game | SGColin | AC ✓ | 0ms | 4048kb | C++20 | 341b | 2024-12-05 12:39:56 | 2024-12-05 12:39:57 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long double ld;
#define N 107
ld p[N], ans;
int main() {
int n; cin >> n;
for (int i = 1; i <= n; ++i) cin >> p[i];
for (int i = 1; i <= n; ++i)
for (int j = 1; j <= n; ++j)
if (i != j) ans += p[i] * p[j] / (p[i] + p[j]);
printf("%.10Lf\n", ans);
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 3992kb
input:
2 0.500000 0.500000
output:
0.5000000000
result:
ok found '0.5000000', expected '0.5000000', error '0.0000000'
Test #2:
score: 0
Accepted
time: 0ms
memory: 3792kb
input:
3 0.500000 0.250000 0.250000
output:
0.9166666667
result:
ok found '0.9166667', expected '0.9166667', error '0.0000000'
Test #3:
score: 0
Accepted
time: 0ms
memory: 3876kb
input:
1 1.000000
output:
0.0000000000
result:
ok found '0.0000000', expected '0.0000000', error '-0.0000000'
Test #4:
score: 0
Accepted
time: 0ms
memory: 3992kb
input:
2 0.538027 0.461973
output:
0.4971078945
result:
ok found '0.4971079', expected '0.4971079', error '0.0000000'
Test #5:
score: 0
Accepted
time: 0ms
memory: 3872kb
input:
3 0.494273 0.190517 0.315210
output:
0.8974534240
result:
ok found '0.8974534', expected '0.8974534', error '0.0000000'
Test #6:
score: 0
Accepted
time: 0ms
memory: 4048kb
input:
4 0.197261 0.087416 0.104439 0.610884
output:
0.9824393171
result:
ok found '0.9824393', expected '0.9824393', error '0.0000000'
Test #7:
score: 0
Accepted
time: 0ms
memory: 3984kb
input:
5 0.306241 0.077563 0.409216 0.059593 0.147387
output:
1.4779374690
result:
ok found '1.4779375', expected '1.4779375', error '0.0000000'
Test #8:
score: 0
Accepted
time: 0ms
memory: 3868kb
input:
10 0.036869 0.154271 0.039121 0.093444 0.015092 0.006355 0.260004 0.159292 0.185205 0.050347
output:
3.0239657966
result:
ok found '3.0239658', expected '3.0239658', error '0.0000000'
Test #9:
score: 0
Accepted
time: 0ms
memory: 3988kb
input:
15 0.037256 0.092021 0.010070 0.032228 0.117466 0.004701 0.055551 0.001236 0.187293 0.055711 0.207971 0.004382 0.105521 0.088092 0.000501
output:
4.0969732401
result:
ok found '4.0969732', expected '4.0969732', error '0.0000000'
Test #10:
score: 0
Accepted
time: 0ms
memory: 3988kb
input:
30 0.039333 0.083460 0.009475 0.008942 0.003020 0.037578 0.045489 0.029958 0.001444 0.044862 0.016973 0.049030 0.034943 0.002248 0.026105 0.020958 0.076519 0.058296 0.035587 0.011935 0.024676 0.006303 0.048558 0.000584 0.014267 0.056606 0.002034 0.087229 0.064801 0.058787
output:
10.2967443290
result:
ok found '10.2967443', expected '10.2967443', error '0.0000000'
Test #11:
score: 0
Accepted
time: 0ms
memory: 3804kb
input:
50 0.001021 0.008859 0.000217 0.009289 0.006963 0.018732 0.007280 0.047461 0.012470 0.028122 0.005435 0.012979 0.015871 0.003407 0.020872 0.037227 0.000613 0.043340 0.018878 0.008492 0.021150 0.020627 0.023751 0.012367 0.029199 0.037501 0.085723 0.001351 0.023855 0.015958 0.007456 0.012490 0.034241 ...
output:
17.2197396576
result:
ok found '17.2197397', expected '17.2197397', error '0.0000000'
Test #12:
score: 0
Accepted
time: 0ms
memory: 3996kb
input:
100 0.001579 0.004926 0.003032 0.000846 0.000350 0.019884 0.009544 0.015217 0.005413 0.018294 0.000776 0.021315 0.001224 0.040895 0.012111 0.008854 0.019986 0.011898 0.007226 0.015722 0.030665 0.002735 0.016657 0.002375 0.009279 0.027049 0.009811 0.014709 0.004331 0.003090 0.007980 0.001159 0.000640...
output:
33.9904096749
result:
ok found '33.9904097', expected '33.9904097', error '0.0000000'
Extra Test:
score: 0
Extra Test Passed