結果
問題 | No.704 ゴミ拾い Medium |
ユーザー | NyaanNyaan |
提出日時 | 2019-10-24 20:46:57 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 658 ms / 1,500 ms |
コード長 | 6,125 bytes |
コンパイル時間 | 1,546 ms |
コンパイル使用メモリ | 180,408 KB |
実行使用メモリ | 24,808 KB |
最終ジャッジ日時 | 2024-07-18 05:08:12 |
合計ジャッジ時間 | 15,725 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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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 | AC | 1 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 2 ms
5,376 KB |
testcase_14 | AC | 7 ms
5,376 KB |
testcase_15 | AC | 6 ms
5,376 KB |
testcase_16 | AC | 6 ms
5,376 KB |
testcase_17 | AC | 7 ms
5,376 KB |
testcase_18 | AC | 6 ms
5,376 KB |
testcase_19 | AC | 7 ms
5,376 KB |
testcase_20 | AC | 6 ms
5,376 KB |
testcase_21 | AC | 7 ms
5,376 KB |
testcase_22 | AC | 7 ms
5,376 KB |
testcase_23 | AC | 6 ms
5,376 KB |
testcase_24 | AC | 613 ms
24,808 KB |
testcase_25 | AC | 626 ms
24,748 KB |
testcase_26 | AC | 622 ms
24,808 KB |
testcase_27 | AC | 617 ms
24,800 KB |
testcase_28 | AC | 613 ms
24,792 KB |
testcase_29 | AC | 606 ms
24,808 KB |
testcase_30 | AC | 600 ms
24,680 KB |
testcase_31 | AC | 600 ms
24,704 KB |
testcase_32 | AC | 613 ms
24,808 KB |
testcase_33 | AC | 658 ms
24,708 KB |
testcase_34 | AC | 462 ms
12,544 KB |
testcase_35 | AC | 472 ms
12,544 KB |
testcase_36 | AC | 459 ms
12,568 KB |
testcase_37 | AC | 472 ms
12,672 KB |
testcase_38 | AC | 464 ms
12,672 KB |
testcase_39 | AC | 466 ms
12,460 KB |
testcase_40 | AC | 467 ms
12,580 KB |
testcase_41 | AC | 466 ms
12,656 KB |
testcase_42 | AC | 464 ms
12,544 KB |
testcase_43 | AC | 464 ms
12,612 KB |
testcase_44 | AC | 2 ms
5,376 KB |
testcase_45 | AC | 2 ms
5,376 KB |
testcase_46 | AC | 453 ms
12,552 KB |
testcase_47 | AC | 454 ms
12,672 KB |
ソースコード
#include <bits/stdc++.h> #define whlie while #define pb push_back #define eb emplace_back #define fi first #define se second #define rep(i,N) for(int i = 0; i < (N); i++) #define repr(i,N) for(int i = (N) - 1; i >= 0; i--) #define rep1(i,N) for(int i = 1; i <= (N) ; i++) #define repr1(i,N) for(int i = (N) ; i > 0 ; i--) #define each(x,v) for(auto& x : v) #define all(v) (v).begin(),(v).end() #define sz(v) ((int)(v).size()) #define vrep(v,it) for(auto it = v.begin(); it != v.end(); it++) #define vrepr(v,it) for(auto it = v.rbegin(); it != v.rend(); it++) #define ini(...) int __VA_ARGS__; in(__VA_ARGS__) #define inl(...) ll __VA_ARGS__; in(__VA_ARGS__) #define ins(...) string __VA_ARGS__; in(__VA_ARGS__) using namespace std; void solve(); using ll = long long; using vl = vector<ll>; using vi = vector<int>; using vvi = vector< vector<int> >; constexpr int inf = 1001001001; constexpr ll infLL = (1LL << 61) - 1; struct IoSetupNya {IoSetupNya() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(15); cerr << fixed << setprecision(7);} } iosetupnya; template<typename T, typename U> inline bool amin(T &x, U y) { return (y < x) ? (x = y, true) : false; } template<typename T, typename U> inline bool amax(T &x, U y) { return (x < y) ? (x = y, true) : false; } template<typename T, typename U> ostream& operator <<(ostream& os, const pair<T, U> &p) { os << p.first << " " << p.second; return os; } template<typename T, typename U> istream& operator >>(istream& is, pair<T, U> &p) { is >> p.first >> p.second; return is; } template<typename T> ostream& operator <<(ostream& os, const vector<T> &v) { int s = (int)v.size(); rep(i,s) os << (i ? " " : "") << v[i]; return os; } template<typename T> istream& operator >>(istream& is, vector<T> &v) { for(auto &x : v) is >> x; return is; } void in(){} template <typename T,class... U> void in(T &t,U &...u){ cin >> t; in(u...);} void out(){cout << "\n";} template <typename T,class... U> void out(const T &t,const U &...u){ cout << t; if(sizeof...(u)) cout << " "; out(u...);} template<typename T>void die(T x){out(x); exit(0);} #ifdef NyaanDebug #include "NyaanDebug.h" #define trc(...) do { cerr << #__VA_ARGS__ << " = "; dbg_out(__VA_ARGS__);} while(0) #define trca(v,N) do { cerr << #v << " = "; array_out(v , N);cout << endl;} while(0) #else #define trc(...) #define trca(...) int main(){solve();} #endif using P = pair<int,int>; using vp = vector<P>; constexpr int MOD = /** 1000000007; //*/ 998244353; //////////////// template<typename T , T INF> struct DynamicLiChaoTree{ struct Line{ T slope , intercept; Line() : slope(0),intercept(INF){} Line(T slope,T intercept) : slope(slope),intercept(intercept){} inline T get(T x) const{ return slope * x + intercept; } inline bool over(const Line& other , const T &x) const{ return get(x) < other.get(x); } }; // remind セグ木は1-indexedの実装 T xmin, xmax, _size; unordered_map<T, Line> seg; // [l , r]におけるLi Chao Tree DynamicLiChaoTree(T xmin, T xmax) : xmin(xmin), xmax(xmax){ _size = 1; while(_size < xmax - xmin + 1) _size <<= 1; } // 内部用の関数 void update(T a,T b,T left,T right,T seg_idx){ Line line(a , b); while(1){ int mid = (left + right) >> 1; bool l_over = line.over(seg[seg_idx], min(xmax , left + xmin) ); bool r_over = line.over(seg[seg_idx], min(xmax , right-1+ xmin) ); if(l_over == r_over){ if(l_over) swap(seg[seg_idx] , line); return; } bool m_over = line.over(seg[seg_idx], min(xmax , mid + xmin) ); if(m_over) swap(seg[seg_idx], line); if(l_over != m_over) seg_idx = (seg_idx << 1) , right = mid; else seg_idx = (seg_idx<<1) | 1 , left = mid; } } // 内部用の関数 void update(T a, T b, T seg_idx){ T left , right; T upper_bit = 63 - __builtin_clzll(seg_idx); left = (_size >> upper_bit) * (seg_idx - (1 << upper_bit) ); right = left + (_size >> upper_bit); update(a , b , left , right , seg_idx); } /* void update(T a,T b,T left,T right){ T lower_bit = (left | right) & (- (left | right) ); T seg_idx = ( _size + left ) / lower_bit; update(a , b , left , right , seg_idx); } */ // y = ax + bなる直線を追加 void update(T a, T b){ update(a , b , 0 , _size , 1); } // 閉区間x in [left , right]に線分y = ax + bを追加するクエリ void update_line_segment(T a,T b,T left,T right){ left -= xmin - _size, right -= xmin - _size - 1; for( ; left < right; left >>= 1 , right >>= 1){ if(left & 1) update(a , b , left++); if(right& 1) update(a , b , --right); } } // xにおける最小値クエリ T query(T x) { T left = 0 , right = _size , seg_idx = 1 , idx = x - xmin , ret = INF; while(1){ T cur = seg[seg_idx].get(x); // 線分追加クエリがない場合はここのコメントアウトを外して高速化可能(1.5倍程度?) //if(cur == INF) break; ret = min(ret , cur); if(left + 1 >= right) break; int mid = (left + right) >> 1; if(idx < mid) seg_idx = (seg_idx << 1) , right = mid; else seg_idx = (seg_idx << 1) | 1 , left = mid; } return ret; } void merge(DynamicLiChaoTree<T,INF> &other){ if(seg.size() < other.seg.size()) seg.swap(other.seg); for(auto &x : other.seg){ if(x.second.intercept == INF) continue; update(x.second.slope , x.second.intercept , x.first); } } }; void solve(){ ini(N); vl a(N) , x(N) , y(N); in(a , x , y); vl dp(N , 0); DynamicLiChaoTree<ll , infLL> lichao(-10 , 100000); lichao.update_line_segment(1 , y[0] - x[0] , x[0] , 100000); lichao.update_line_segment(-1, y[0] + x[0] , -2 , x[0]); each(x , lichao.seg) trc(x.first, x.second.slope , x.second.intercept); rep(i,N){ if(i){ lichao.update_line_segment(1 , dp[i-1] + y[i] - x[i] , x[i] , 100000); lichao.update_line_segment(-1, dp[i-1] + y[i] + x[i] , -5 , x[i]); } dp[i] = lichao.query(a[i]); } trc(dp); out(dp[N - 1]); }