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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 |
|---|---|---|---|---|---|---|---|---|---|
| #613748 | #6423. Fireworks | iokanux# | WA | 9ms | 4148kb | C++20 | 549b | 2024-10-05 14:38:18 | 2024-10-05 14:38:34 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
#define int long long
void solve(){
int n,m,p;cin>>n>>m>>p;
double ga=double(p)*1.0/10000;
double ans=0;
for(int i=2;i<=17009;i++){
double res=((1-ga)/ga)*(1-pow(1-ga,i-1))*double(n+m)+double(n+m)-pow(1-ga,i)*double(n*i+m*i);
ans=max(ans,res);
}
cout<<fixed<<setprecision(9)<<ans<<"\n";
}
signed main(){
ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
int T=1;
cin>>T;
while(T--){
solve();
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 2ms
memory: 4148kb
input:
3 1 1 5000 1 1 1 1 2 10000
output:
4.000000000 10141.517287256 3.000000000
result:
ok 3 numbers
Test #2:
score: -100
Wrong Answer
time: 9ms
memory: 4140kb
input:
20 10 27 2855 79 59 6888 65 72 7725 78 50 2888 31 21 5759 41 58 6619 47 27 3881 35 55 5095 77 7 6028 17 89 1792 84 60 8604 58 44 4923 88 27 3824 54 63 1482 19 42 5366 93 76 97 100 99 8660 96 36 4343 90 56 9515 24 44 9922
output:
129.597197898 200.348432056 177.346278317 443.213296399 90.293453725 149.569421363 190.672507086 176.643768400 139.349701393 591.517857143 167.364016736 207.190737355 300.732217573 789.473684211 113.678717853 17422.680412371 229.792147806 303.937370481 153.441933789 68.534569643
result:
wrong answer 1st numbers differ - expected: '89.72981', found: '129.59720', error = '0.44430'