結果
問題 | No.68 よくある棒を切る問題 (2) |
ユーザー | is_eri23 |
提出日時 | 2014-11-18 19:51:29 |
言語 | C++11 (gcc 11.4.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 3,487 bytes |
コンパイル時間 | 1,531 ms |
コンパイル使用メモリ | 163,744 KB |
実行使用メモリ | 13,064 KB |
最終ジャッジ日時 | 2024-06-10 20:03:35 |
合計ジャッジ時間 | 14,297 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | TLE | - |
testcase_01 | -- | - |
testcase_02 | -- | - |
testcase_03 | -- | - |
testcase_04 | -- | - |
testcase_05 | -- | - |
testcase_06 | -- | - |
testcase_07 | -- | - |
testcase_08 | -- | - |
testcase_09 | -- | - |
ソースコード
#include <bits/stdc++.h> #define EPS 1e-9 #define INF 1070000000LL #define MOD 1000000007LL #define fir first #define foreach(it,X) for(auto it=(X).begin();it!=(X).end();it++) #define numa(x,a) for(auto x: a) #define ite iterator #define mp make_pair #define rep(i,n) rep2(i,0,n) #define rep2(i,m,n) for(int i=m;i<(n);i++) #define pb push_back #define pf push_front #define sec second #define sz(x) ((int)(x).size()) #define ALL( c ) (c).begin(), (c).end() #define gcd(a,b) __gcd(a,b) #define mem(x,n) memset(x,n,sizeof(x)) #define endl "\n" using namespace std; template <int POS, class TUPLE> void deploy(std::ostream &os, const TUPLE &tuple){} template <int POS, class TUPLE, class H, class ...Ts> void deploy(std::ostream &os, const TUPLE &t){ os << (POS == 0 ? "" : ", ") << get<POS>(t); deploy<POS + 1, TUPLE, Ts...>(os, t); } template <class T,class U> std::ostream& operator<<(std::ostream &os, std::pair<T,U> &p){ os << "(" << p.first <<", " << p.second <<")";return os; } template <class T> std::ostream& operator<<(std::ostream &os, std::vector<T> &v){ int remain = v.size(); os << "{"; for(auto e: v) os << e << (--remain == 0 ? "}" : ", "); return os; } template <class T> std::ostream& operator<<(std::ostream &os, std::set<T> &v){ int remain = v.size(); os << "{"; for(auto e: v) os << e << (--remain == 0 ? "}" : ", "); return os; } template <class T, class K> std::ostream& operator<<(std::ostream &os, std::map<T, K> &mp){ int remain = mp.size(); os << "{"; for(auto e: mp) os << "(" << e.first << " -> " << e.second << ")" << (--remain == 0 ? "}" : ", "); return os; } #define DEBUG1(var0) { std::cerr << (#var0) << "=" << (var0) << endl; } #define DEBUG2(var0, var1) { std::cerr << (#var0) << "=" << (var0) << ", ";DEBUG1(var1); } #define DEBUG3(var0, var1, var2) { std::cerr << (#var0) << "=" << (var0) << ", ";DEBUG2(var1,var2); } #define DEBUG4(var0, var1, var2, var3) { std::cerr << (#var0) << "=" << (var0) << ", ";DEBUG3(var1,var2,var3); } using ll = long long; int N; ll nums[100100]; int Q; pair <ll,int> K[100100]; double ans[100100]; void calc(double lp,double up,int now){ while(up > lp + 1e-9 && up > lp*(1+1e-9)){ double mid = (lp + up) / 2; double mid_time = 1 / mid; ll now_k = 0; rep(i,N){ now_k += (ll) (nums[i] * mid_time); } if(now_k >= K[now].first){ lp = mid; }else{ up = mid; } } //DEBUG3(K[now],now,lp); ans[K[now].second] = lp; } void go(double lp,double up,int start,int end){//[start,end) if(end - start == 1){ //DEBUG4(lp,up,start,end); calc(lp,up,start); return; }else if(end <= start){ return; } if(abs(up - lp) < 1e-12){ return; } double mid = (lp + up) / 2; double mid_time = 1 / mid; ll now_k = 0; rep(i,N){ now_k += (ll) (nums[i] * mid_time); } auto it = lower_bound(K+start,K+end,now_k,[](pair <ll,int> a,ll k){return a.first <= k;}); //DEBUG4(lp,up,start,end); //DEBUG2(now_k,it-K); if(it == K+Q){ go(mid,up,start,end); }else{ go(lp,mid,it-K,end); go(mid,up,start,(it-K)); } } int main() { cin.tie(0); ios_base::sync_with_stdio(0); int a,b; cin >> N; rep(i,N){ cin >> nums[i]; } cin >> Q; rep(i,Q){ cin >> K[i].first; K[i].second = i; } sort(K,K+Q); go(0,1e9+10,0,Q); rep(i,Q){ cout << fixed << setprecision(10) << ans[i] << endl; } return 0; }