結果
問題 | No.1117 数列分割 |
ユーザー | rniya |
提出日時 | 2020-07-17 22:42:06 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
MLE
|
実行時間 | - |
コード長 | 4,966 bytes |
コンパイル時間 | 2,004 ms |
コンパイル使用メモリ | 188,596 KB |
実行使用メモリ | 465,572 KB |
最終ジャッジ日時 | 2024-05-07 11:29:49 |
合計ジャッジ時間 | 20,510 ms |
ジャッジサーバーID (参考情報) |
judge5 / 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 | 2 ms
13,768 KB |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 283 ms
30,720 KB |
testcase_04 | AC | 228 ms
27,648 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 3 ms
6,940 KB |
testcase_07 | AC | 3 ms
6,940 KB |
testcase_08 | AC | 238 ms
34,560 KB |
testcase_09 | AC | 33 ms
10,368 KB |
testcase_10 | AC | 218 ms
32,384 KB |
testcase_11 | AC | 1,329 ms
155,392 KB |
testcase_12 | AC | 1,419 ms
177,920 KB |
testcase_13 | AC | 1,669 ms
147,328 KB |
testcase_14 | AC | 2,172 ms
221,440 KB |
testcase_15 | MLE | - |
testcase_16 | TLE | - |
testcase_17 | AC | 197 ms
29,952 KB |
testcase_18 | MLE | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
testcase_23 | -- | - |
testcase_24 | -- | - |
testcase_25 | -- | - |
testcase_26 | -- | - |
testcase_27 | -- | - |
testcase_28 | -- | - |
ソースコード
#include <bits/stdc++.h> using namespace std; #define LOCAL #pragma region Macros typedef long long ll; #define ALL(x) (x).begin(),(x).end() const long long MOD=1e9+7; // const long long MOD=998244353; const int INF=1e9; const long long IINF=1e18; const int dx[4]={1,0,-1,0},dy[4]={0,1,0,-1}; const char dir[4]={'D','R','U','L'}; template<typename T> istream &operator>>(istream &is,vector<T> &v){ for (T &x:v) is >> x; return is; } template<typename T> ostream &operator<<(ostream &os,const vector<T> &v){ for (int i=0;i<v.size();++i){ os << v[i] << (i+1==v.size()?"": " "); } return os; } template<typename T,typename U> ostream &operator<<(ostream &os,const pair<T,U> &p){ cout << '(' << p.first << ',' << p.second << ')'; return os; } template<typename T,typename U> ostream &operator<<(ostream &os,const map<T,U> &m){ os << '{'; for (auto itr=m.begin();itr!=m.end();++itr){ os << '(' << itr->first << ',' << itr->second << ')'; if (++itr!=m.end()) os << ','; --itr; } os << '}'; return os; } template<typename T> ostream &operator<<(ostream &os,const set<T> &s){ os << '{'; for (auto itr=s.begin();itr!=s.end();++itr){ os << *itr; if (++itr!=s.end()) os << ','; --itr; } os << '}'; return os; } void debug_out(){cerr << '\n';} template<class Head,class... Tail> void debug_out(Head&& head,Tail&&... tail){ cerr << head; if (sizeof...(Tail)>0) cerr << ", "; debug_out(move(tail)...); } #ifdef LOCAL #define debug(...) cerr << " ";\ cerr << #__VA_ARGS__ << " :[" << __LINE__ << ":" << __FUNCTION__ << "]" << '\n';\ cerr << " ";\ debug_out(__VA_ARGS__) #else #define debug(...) 42 #endif template<typename T> T gcd(T x,T y){return y!=0?gcd(y,x%y):x;} template<typename T> T lcm(T x,T y){return x/gcd(x,y)*y;} template<class T1,class T2> inline bool chmin(T1 &a,T2 b){ if (a>b){a=b; return true;} return false; } template<class T1,class T2> inline bool chmax(T1 &a,T2 b){ if (a<b){a=b; return true;} return false; } #pragma endregion template<typename Monoid> struct SegmentTree{ typedef function<Monoid(Monoid,Monoid)> F; int n; F f; Monoid id; vector<Monoid> dat; SegmentTree(int n_,F f,Monoid id):f(f),id(id){init(n_);} void init(int n_){ n=1; while(n<n_) n<<=1; dat.assign(n<<1,id); } void build(const vector<Monoid> &v){ for (int i=0;i<v.size();++i) dat[i+n]=v[i]; for (int i=n-1;i;--i) dat[i]=f(dat[i<<1|0],dat[i<<1|1]); } void update(int k,Monoid x){ dat[k+=n]=x; while(k>>=1) dat[k]=f(dat[k<<1|0],dat[k<<1|1]); } Monoid query(int a,int b){ if (a>=b) return id; Monoid vl=id,vr=id; for (int l=a+n,r=b+n;l<r;l>>=1,r>>=1){ if (l&1) vl=f(vl,dat[l++]); if (r&1) vr=f(dat[--r],vr); } return f(vl,vr); } // most left position that meets condition "check" template<typename C> int find(int a,int b,const C &check,int k,int l,int r){ if (!check(dat[k])||r<=a||b<=l) return -1; if (l+1==r) return k-n; int vl=find(a,b,check,k<<1|0,l,(l+r)>>1); if (~vl) return vl; return find(a,b,check,k<<1|1,(l+r)>>1,r); } template<typename C> int find(int a,int b,const C &check){ return find(a,b,check,1,0,n); } Monoid operator[](int i){return dat[i+n];} }; template<typename T> map<T,int> dict(vector<T> v){ map<T,int> res; for (int i=0;i<v.size();++i) res[v[i]]=i; return res; } template<typename T> vector<int> dict(vector<T> v){ vector<T> cv=compress(v); int n=v.size(); vector<int> res(n); for (int i=0;i<n;++i) res[i]=lower_bound(cv.begin(),cv.end(),v[i])-cv.begin(); return res; } int main(){ cin.tie(0); ios::sync_with_stdio(false); int N,K,M; cin >> N >> K >> M; vector<ll> A(N); cin >> A; vector<ll> sum(N+1,0),comp(N+1),dict(N+1); for (int i=0;i<N;++i) sum[i+1]=sum[i]+A[i]; for (int i=0;i<N+1;++i) comp[i]=sum[i]; sort(ALL(comp)); map<ll,int> cnt; for (int i=0;i<N+1;++i){ dict[i]=lower_bound(ALL(comp),sum[i])-comp.begin(); dict[i]+=cnt[sum[i]]; ++cnt[sum[i]]; } auto f=[](ll a,ll b){return max(a,b);}; vector<vector<ll>> dp(N+1,vector<ll>(K+1,-IINF)); vector<SegmentTree<ll>> seg1(K+1,SegmentTree<ll>(N+1,f,-IINF)) ,seg2(K+1,SegmentTree<ll>(N+1,f,-IINF)); dp[0][0]=0; seg1[0].update(dict[0],dp[0][0]-sum[0]); seg2[0].update(dict[0],dp[0][0]+sum[0]); for (int i=1;i<=N;++i){ for (int j=0;j<K;++j){ chmax(dp[i][j+1],seg1[j].query(0,dict[i])+sum[i]); chmax(dp[i][j+1],seg2[j].query(dict[i],N+1)-sum[i]); seg1[j+1].update(dict[i],dp[i][j+1]-sum[i]); seg2[j+1].update(dict[i],dp[i][j+1]+sum[i]); } } cout << dp[N][K] << '\n'; }