QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #59647 | #1373. Rating Problems | Sa3tElSefr# | AC ✓ | 3ms | 3856kb | C++20 | 610b | 2022-10-31 17:49:03 | 2022-10-31 17:49:04 |
Judging History
answer
#pragma GCC optimize("O3")
#pragma GCC optimize ("unroll-loops")
#pragma GCC target("avx,avx2,fma")
#include <bits/stdc++.h>
#define ll long long
#define ld double
using namespace std;
const int N = 2e5 + 5, lg = 19, mod = 1e9 + 7;
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
int n, k;
cin >> n >> k;
int sum = 0;
for(int i = 0; i < k; i++) {
int x;
cin >> x;
sum += x;
}
cout << fixed << setprecision(5) << (sum + -3.0l * (n - k)) / (ld) n << ' ' << (sum + 3.0l * (n - k)) / (ld) n;
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 3616kb
input:
10 0
output:
-3.00000 3.00000
result:
ok 2 numbers
Test #2:
score: 0
Accepted
time: 3ms
memory: 3616kb
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: 2ms
memory: 3580kb
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: 3644kb
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: 3ms
memory: 3628kb
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: 3ms
memory: 3856kb
input:
1 0
output:
-3.00000 3.00000
result:
ok 2 numbers
Test #7:
score: 0
Accepted
time: 3ms
memory: 3856kb
input:
1 1 2
output:
2.00000 2.00000
result:
ok 2 numbers
Test #8:
score: 0
Accepted
time: 3ms
memory: 3768kb
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: 3760kb
input:
6 4 -2 -1 -2 0
output:
-1.83333 0.16667
result:
ok 2 numbers