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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 |
---|---|---|---|---|---|---|---|---|---|
#716712 | #9532. 长野原龙势流星群 | konata2828 | 0 | 179ms | 25676kb | C++11 | 952b | 2024-11-06 15:52:44 | 2024-11-06 15:52:44 |
Judging History
answer
// Hydro submission #672b2049a059678966636f8a@1730879562537
#include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 5;
const double eps = 1e-9;
int n, w[N], cnt[N], ans[N];
vector<int> g[N];
priority_queue<pair<double, int> > hep[N];
void dfs(int u){
cnt[u] = 1;
for(int v : g[u]){
dfs(v);
hep[u].push(make_pair((double)(ans[v]) / cnt[v], v));}
while(!hep[u].empty()){
if(hep[u].top().first <= (double)(ans[u]) / cnt[u] - eps)
break;
int v = hep[u].top().second; hep[u].pop();
cnt[u] += cnt[v], ans[u] += ans[v];
if(hep[u].size() < hep[v].size()) swap(hep[u], hep[v]);
while(!hep[v].empty()) hep[u].push(hep[v].top()), hep[v].pop();
}
return ;
}
signed main(){
cin >> n;
for(int i = 2, p; i <= n; i++)
cin >> p, g[p].push_back(i);
for(int i = 1; i <= n; i++) cin >> ans[i];
dfs(1);
for(int i = 1; i <= n; i++)
printf("%.10f\n", (double)(ans[i]) / cnt[i]);
return 0;
}
詳細信息
Subtask #1:
score: 0
Wrong Answer
Test #1:
score: 0
Wrong Answer
time: 0ms
memory: 16256kb
input:
2000 1 2 2 4 5 2 3 6 4 2 7 2 8 14 8 12 1 14 4 14 8 18 9 2 7 22 20 22 14 29 28 16 6 21 23 6 21 14 13 9 1 4 18 13 2 39 21 33 18 20 38 27 27 1 49 5 51 3 31 24 10 42 2 44 13 9 35 66 27 60 67 59 29 40 53 2 33 43 26 43 62 16 78 45 14 10 73 69 41 35 25 26 2 70 54 1 54 48 5 36 44 28 90 29 51 51 93 82 95 45 ...
output:
-1420971.2577903683 6702855.0735294120 6301518.9863481233 74038596.8499999940 -3107784.5333333332 -931544.0555555555 706859501.3333333731 72675430.4782608747 13268835.8676470593 -576472.6721311476 -27999357.3571428582 -17579442.1999999993 994728511.5000000000 -7511183.0122448979 76956819.4736842066 ...
result:
wrong answer 1st numbers differ - expected: '883838885.9230770', found: '-1420971.2577904', error = '1.0016077'
Subtask #2:
score: 0
Wrong Answer
Test #32:
score: 0
Wrong Answer
time: 179ms
memory: 25676kb
input:
200000 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 31 31 32 32 33 33 34 34 35 35 36 36 37 37 38 38 39 39 40 40 41 41 42 42 43 43 44 44 45 45 46 46 47 47 48 48 49 49 50 50 51 51 52 52...
output:
501428216.5000000000 514689638.6666666865 203830.6249201958 293616931.0000000000 746642876.0000000000 806376230.0000000000 63774687.0000000000 234233479.0000000000 199071.3342526200 -179075.7645202020 691212027.0000000000 722381415.0000000000 394755540.0000000000 31125868.8750000000 10599.4646316407...
result:
wrong answer 1st numbers differ - expected: '792545632.4154930', found: '501428216.5000000', error = '0.3673194'
Subtask #3:
score: 0
Skipped
Dependency #1:
0%
Subtask #4:
score: 0
Skipped
Dependency #2:
0%