QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #331197 | #1373. Rating Problems | weilaifuture# | AC ✓ | 0ms | 3972kb | C++14 | 304b | 2024-02-18 03:19:19 | 2024-02-18 03:19:20 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
int main() {
double n, k, sum = 0, x;
cin >> n >> k;
for (int i = 1; i <= k; i++) {
cin >> x;
sum += x;
}
cout << fixed << setprecision(5) << (sum - 3 * (n - k))/n << " " << (sum + 3 * (n - k))/n << endl;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 3964kb
input:
10 0
output:
-3.00000 3.00000
result:
ok 2 numbers
Test #2:
score: 0
Accepted
time: 0ms
memory: 3912kb
input:
10 10 3 2 1 0 -1 -2 -3 -2 -1 0
output:
-0.30000 -0.30000
result:
ok 2 numbers
Test #3:
score: 0
Accepted
time: 0ms
memory: 3904kb
input:
10 10 0 0 0 0 0 0 0 0 0 0
output:
0.00000 0.00000
result:
ok 2 numbers
Test #4:
score: 0
Accepted
time: 0ms
memory: 3860kb
input:
10 10 3 3 3 3 3 3 3 3 3 3
output:
3.00000 3.00000
result:
ok 2 numbers
Test #5:
score: 0
Accepted
time: 0ms
memory: 3972kb
input:
10 10 -3 -3 -3 -3 -3 -3 -3 -3 -3 -3
output:
-3.00000 -3.00000
result:
ok 2 numbers
Test #6:
score: 0
Accepted
time: 0ms
memory: 3912kb
input:
1 0
output:
-3.00000 3.00000
result:
ok 2 numbers
Test #7:
score: 0
Accepted
time: 0ms
memory: 3844kb
input:
1 1 2
output:
2.00000 2.00000
result:
ok 2 numbers
Test #8:
score: 0
Accepted
time: 0ms
memory: 3724kb
input:
9 7 1 3 2 2 1 1 2
output:
0.66667 2.00000
result:
ok 2 numbers
Test #9:
score: 0
Accepted
time: 0ms
memory: 3920kb
input:
6 4 -2 -1 -2 0
output:
-1.83333 0.16667
result:
ok 2 numbers