QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #864416 | #9855. Glass Bead Game | ZhenLiu# | WA | 1ms | 4096kb | C++14 | 471b | 2025-01-20 16:22:35 | 2025-01-20 16:22:36 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
int n;
cin >> n;
vector<double> p(n + 1);
for(int i = 1; i <= n; ++i){
cin >> p[i];
}
double ans = 0;
for(int i = 1; i <= n; ++i){
for(int j = i + 1; j <= n; ++j){
ans += 2 * (p[i]*p[j])/(p[i] + p[j]);
}
}
cout << ans << endl;
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 3968kb
input:
2 0.500000 0.500000
output:
0.5
result:
ok found '0.5000000', expected '0.5000000', error '0.0000000'
Test #2:
score: 0
Accepted
time: 1ms
memory: 4096kb
input:
3 0.500000 0.250000 0.250000
output:
0.916667
result:
ok found '0.9166670', expected '0.9166667', error '0.0000003'
Test #3:
score: 0
Accepted
time: 0ms
memory: 3968kb
input:
1 1.000000
output:
0
result:
ok found '0.0000000', expected '0.0000000', error '-0.0000000'
Test #4:
score: 0
Accepted
time: 0ms
memory: 4096kb
input:
2 0.538027 0.461973
output:
0.497108
result:
ok found '0.4971080', expected '0.4971079', error '0.0000001'
Test #5:
score: 0
Accepted
time: 0ms
memory: 4096kb
input:
3 0.494273 0.190517 0.315210
output:
0.897453
result:
ok found '0.8974530', expected '0.8974534', error '0.0000004'
Test #6:
score: 0
Accepted
time: 0ms
memory: 3968kb
input:
4 0.197261 0.087416 0.104439 0.610884
output:
0.982439
result:
ok found '0.9824390', expected '0.9824393', error '0.0000003'
Test #7:
score: -100
Wrong Answer
time: 0ms
memory: 3968kb
input:
5 0.306241 0.077563 0.409216 0.059593 0.147387
output:
1.47794
result:
wrong answer 1st numbers differ - expected: '1.4779375', found: '1.4779400', error = '0.0000017'