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 |
|---|---|---|---|---|---|---|---|---|---|
| #61552 | #1373. Rating Problems | Silverhorse7# | AC ✓ | 4ms | 3728kb | C++20 | 487b | 2022-11-14 05:41:11 | 2022-11-14 05:41:12 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int N =2e5;
int a[N];
int n,k;
void Max(){
for(int i = k ; i < n;i++)
a[i]=3;
double ans= 0;
for(auto i : a)
ans+=i;
ans/=n;
cout<<fixed<<setprecision(9)<<ans;
}
void Min(){
for(int i = k ; i < n;i++)
a[i]=-3;
double ans= 0;
for(auto i : a)
ans+=i;
ans/=n;
cout<<fixed<<setprecision(9)<<ans<<endl;
}
signed main(){
cin>>n>>k;
for(int i = 0 ; i < k; i++)
cin>>a[i];
Min(),Max();
}
详细
Test #1:
score: 100
Accepted
time: 3ms
memory: 3456kb
input:
10 0
output:
-3.000000000 3.000000000
result:
ok 2 numbers
Test #2:
score: 0
Accepted
time: 4ms
memory: 3604kb
input:
10 10 3 2 1 0 -1 -2 -3 -2 -1 0
output:
-0.300000000 -0.300000000
result:
ok 2 numbers
Test #3:
score: 0
Accepted
time: 3ms
memory: 3556kb
input:
10 10 0 0 0 0 0 0 0 0 0 0
output:
0.000000000 0.000000000
result:
ok 2 numbers
Test #4:
score: 0
Accepted
time: 3ms
memory: 3596kb
input:
10 10 3 3 3 3 3 3 3 3 3 3
output:
3.000000000 3.000000000
result:
ok 2 numbers
Test #5:
score: 0
Accepted
time: 3ms
memory: 3552kb
input:
10 10 -3 -3 -3 -3 -3 -3 -3 -3 -3 -3
output:
-3.000000000 -3.000000000
result:
ok 2 numbers
Test #6:
score: 0
Accepted
time: 2ms
memory: 3728kb
input:
1 0
output:
-3.000000000 3.000000000
result:
ok 2 numbers
Test #7:
score: 0
Accepted
time: 3ms
memory: 3608kb
input:
1 1 2
output:
2.000000000 2.000000000
result:
ok 2 numbers
Test #8:
score: 0
Accepted
time: 3ms
memory: 3608kb
input:
9 7 1 3 2 2 1 1 2
output:
0.666666667 2.000000000
result:
ok 2 numbers
Test #9:
score: 0
Accepted
time: 3ms
memory: 3456kb
input:
6 4 -2 -1 -2 0
output:
-1.833333333 0.166666667
result:
ok 2 numbers