結果
| 問題 |
No.913 木の燃やし方
|
| コンテスト | |
| ユーザー |
maroon_kuri
|
| 提出日時 | 2019-10-18 22:14:49 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 356 ms / 3,000 ms |
| コード長 | 4,612 bytes |
| コンパイル時間 | 2,163 ms |
| コンパイル使用メモリ | 182,352 KB |
| 実行使用メモリ | 15,168 KB |
| 最終ジャッジ日時 | 2024-06-25 17:10:25 |
| 合計ジャッジ時間 | 15,738 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 34 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
using ll=long long;
#define int ll
#define rng(i,a,b) for(int i=int(a);i<int(b);i++)
#define rep(i,b) rng(i,0,b)
#define gnr(i,a,b) for(int i=int(b)-1;i>=int(a);i--)
#define per(i,b) gnr(i,0,b)
#define pb push_back
#define eb emplace_back
#define a first
#define b second
#define bg begin()
#define ed end()
#define all(x) x.bg,x.ed
#ifdef LOCAL
#define dmp(x) cerr<<__LINE__<<" "<<#x<<" "<<x<<endl
#else
#define dmp(x) void(0)
#endif
template<class t,class u> void chmax(t&a,u b){if(a<b)a=b;}
template<class t,class u> void chmin(t&a,u b){if(b<a)a=b;}
template<class t> using vc=vector<t>;
template<class t> using vvc=vc<vc<t>>;
using pi=pair<int,int>;
using vi=vc<int>;
template<class t,class u>
ostream& operator<<(ostream& os,const pair<t,u>& p){
return os<<"{"<<p.a<<","<<p.b<<"}";
}
template<class t> ostream& operator<<(ostream& os,const vc<t>& v){
os<<"{";
for(auto e:v)os<<e<<",";
return os<<"}";
}
#define mp make_pair
#define mt make_tuple
#define one(x) memset(x,-1,sizeof(x))
#define zero(x) memset(x,0,sizeof(x))
using uint=unsigned;
using ull=unsigned long long;
template<int i,class T>
void print_tuple(ostream&,const T&){
}
template<int i,class T,class H,class ...Args>
void print_tuple(ostream&os,const T&t){
if(i)os<<",";
os<<get<i>(t);
print_tuple<i+1,T,Args...>(os,t);
}
template<class ...Args>
ostream& operator<<(ostream&os,const tuple<Args...>&t){
os<<"{";
print_tuple<0,tuple<Args...>,Args...>(os,t);
return os<<"}";
}
void print(ll x,int suc=1){
cout<<x;
if(suc==1)
cout<<"\n";
if(suc==2)
cout<<" ";
}
ll read(){
ll i;
cin>>i;
return i;
}
vi readvi(int n,int off=0){
vi v(n);
rep(i,n)v[i]=read()+off;
return v;
}
template<class T>
void print(const vector<T>&v,int suc=1){
rep(i,v.size())
print(v[i],i==int(v.size())-1?suc:2);
}
string readString(){
string s;
cin>>s;
return s;
}
template<class T>
T sq(const T& t){
return t*t;
}
//#define CAPITAL
void yes(bool ex=true){
#ifdef CAPITAL
cout<<"YES"<<endl;
#else
cout<<"Yes"<<endl;
#endif
if(ex)exit(0);
}
void no(bool ex=true){
#ifdef CAPITAL
cout<<"NO"<<endl;
#else
cout<<"No"<<endl;
#endif
if(ex)exit(0);
}
constexpr ll ten(int n){
return n==0?1:ten(n-1)*10;
}
const ll infLL=LLONG_MAX/3;
#ifdef int
const int inf=infLL;
#else
const int inf=INT_MAX/2-100;
#endif
int topbit(signed t){
return t==0?-1:31-__builtin_clz(t);
}
int topbit(ll t){
return t==0?-1:63-__builtin_clzll(t);
}
int botbit(signed a){
return a==0?32:__builtin_ctz(a);
}
int botbit(ll a){
return a==0?64:__builtin_ctzll(a);
}
int popcount(signed t){
return __builtin_popcount(t);
}
int popcount(ll t){
return __builtin_popcountll(t);
}
bool ispow2(int i){
return i&&(i&-i)==i;
}
int mask(int i){
return (int(1)<<i)-1;
}
bool inc(int a,int b,int c){
return a<=b&&b<=c;
}
template<class t> void mkuni(vc<t>&v){
sort(all(v));
v.erase(unique(all(v)),v.ed);
}
ll rand_int(ll l, ll r) { //[l, r]
#ifdef LOCAL
static mt19937_64 gen;
#else
static random_device rd;
static mt19937_64 gen(rd());
#endif
return uniform_int_distribution<ll>(l, r)(gen);
}
int fdiv(int a,int b){
return a/b-((a^b)<0&&a%b);
}
struct CHT{
struct ln{
int a,b;
int eval(int x){return a*x+b;}
};
int pos(ln x,ln y){
return fdiv(x.b-y.b,y.a-x.a);
}
vc<ln> ls;
//a nonincreasing
void add(int a,int b){
if(ls.size()&&ls.back().a==a){
chmin(b,ls.back().b);
ls.pop_back();
}
int s;
while((s=ls.size())>=2){
int x=pos(ls[s-2],ls[s-1]);
int y=pos(ls[s-1],ln{a,b});
if(x<y)break;
ls.pop_back();
}
ls.pb(ln{a,b});
}
//x nonincreasing
//return min
int query(int x){
if(ls.empty())return inf;
int s;
while((s=ls.size())>=2)
if(ls[s-2].eval(x)>ls[s-1].eval(x))
break;
else
ls.pop_back();
return ls.back().eval(x);
}
};
vi slv(vi a){
int n=a.size();
if(n==1){
return vi{1+a[0]};
}
int m=n/2;
vi l(m),r(n-m);
rep(i,m)
l[i]=a[i];
rep(i,n-m)
r[i]=a[i+m];
vi x=slv(l),y=slv(r);
rep(k,2){
CHT cht;
{
int s=accumulate(all(l),int(0));
rep(i,m+1){
cht.add(-2*i,s+i*i);
if(i<m)
s-=l[i];
}
}
int s=accumulate(all(r),int(0));
int cur=inf;
per(i,n-m){
int w=m+i+1;
chmin(cur,cht.query(w)+s+w*w);
chmin(y[i],cur);
s-=r[i];
}
reverse(all(l));
reverse(all(r));
swap(l,r);
reverse(all(x));
reverse(all(y));
swap(x,y);
m=n-m;
}
x.insert(x.ed,all(y));
return x;
}
signed main(){
cin.tie(0);
ios::sync_with_stdio(0);
cout<<fixed<<setprecision(20);
int n;cin>>n;
vi a=readvi(n);
vi ans=slv(a);
for(auto v:ans)
print(v);
}
maroon_kuri