Submission #59788

#	Time	Username	Problem	Language	Result	Execution time	Memory
59788		WA_TLE	Holiday (IOI14_holiday)	C++14	24 / 100	55 ms	2220 KiB

holiday

#include<deque>
#include<queue>
#include<vector>
#include<algorithm>
#include<iostream>
#include<set>
#include<cmath>
#include<tuple>
#include<string>
//#include<chrono>
#include<functional>
#include<iterator>
#include<random>
#include<unordered_set>
#include<array>
#include<map>
#include<iomanip>
#include<assert.h>
#include<bitset>
#include<stack>
using namespace std;
typedef long long int llint;
typedef long double lldo;
#define mp make_pair
#define mt make_tuple
#define pub push_back
#define puf push_front
#define pob pop_back
#define pof pop_front
#define fir first
#define sec second
#define res resize
#define ins insert
#define era erase
/*
cout<<setprecision(20)
cin.tie(0);
ios::sync_with_stdio(false);
*/
const llint mod=1e9+7;
const llint big=2.19e15+1;
const long double pai=3.141592653589793238462643383279502884197;
const long double eps=1e-15;
template <class T,class U>void mineq(T& a,U b){if(a>b){a=b;}}
template <class T,class U>void maxeq(T& a,U b){if(a<b){a=b;}}
llint gcd(llint a,llint b){if(a%b==0){return b;}else return gcd(b,a%b);}
//llint lcm(llint a,llint b){return a/gcd(a,b)*b;}
template<class T> void SO(T& ve){sort(ve.begin(),ve.end());}
template<class T> void REV(T& ve){reverse(ve.begin(),ve.end());}
template<class T>llint LBI(vector<T>&ar,T in){return lower_bound(ar.begin(),ar.end(),in)-ar.begin();}
template<class T>llint UBI(vector<T>&ar,T in){return upper_bound(ar.begin(),ar.end(),in)-ar.begin();}
/*
ioi2014 day2 hoilday
拡張　convex full trick
凸関数とそうでない関数のマージを行う
*/
#include"holiday.h"
vector<llint>pot;//spot,point
vector<llint>solve(int sta,int owa){
	//solveのstaからowaまでのマージを行う
	//愚直～
	vector<llint>ans((owa-sta)*2);
	vector<llint>gen;
	int i,j;
	for(i=0;i<owa-sta;i++){
		llint t=pot[i+sta];
		int bas=gen.size();
		gen.pub(t);
		while(0<bas&&gen[bas-1]<gen[bas]){
			swap(gen[bas-1],gen[bas]);
			bas--;
		}
		llint now=0;
		for(j=0;j<gen.size();j++){
			now+=gen[j];
			maxeq(ans[i+j+1],now);
		}
	}
	//for(auto it:ans){cout<<it<<" ";}cout<<endl;
	return ans;
}

llint findMaxAttraction(int n,int start,int d,int attraction[]){
	//初めに左に行く場合と右に行く場合を計算
	if(3000<n){return 0;}
	llint ans=0;
	pot.resize(n+n);
	llint i;
	for(i=0;i<=start;i++){pot[i]=attraction[start-i];}
	vector<llint>hahi=solve(0,start+1);
	for(i=0;i<n+n;i++){pot[i]=0;}
	for(i=1;i<n-start;i++){pot[2*i]=attraction[i+start];}
	vector<llint>mdmg=solve(0,(n-start)*2);
	for(i=0;i<n+n;i++){pot[i]=0;}
	for(i=0;i<=d;i++){
		llint ge=hahi[min((llint)hahi.size()-1,i)]+mdmg[min((llint)mdmg.size()-1,d-i)];
		maxeq(ans,ge);
	}
	
	for(i=0;i<=start;i++){pot[2*i]=attraction[start-i];}
	vector<llint>mdhi=solve(0,(start+1)*2);
	for(i=0;i<n+n;i++){pot[i]=0;}
	for(i=1;i<n-start;i++){pot[i]=attraction[i+start];}
	vector<llint>hamg=solve(0,(n-start));
	for(i=0;i<n+n;i++){pot[i]=0;}
	for(i=0;i<=d;i++){
		llint ge=mdhi[min((llint)mdhi.size()-1,i)]+hamg[min((llint)hamg.size()-1,d-i)];
		maxeq(ans,ge);
	}
	return ans;
}

Compilation message (stderr)

holiday.cpp: In function 'std::vector<long long int> solve(int, int)':
holiday.cpp:74:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(j=0;j<gen.size();j++){
           ~^~~~~~~~~~~
grader.cpp: In function 'int main()':
grader.cpp:7:12: warning: variable 'n_s' set but not used [-Wunused-but-set-variable]
     int i, n_s;
            ^~~

• Subtask 1: 7 / 7
• Subtask 2: 0 / 23
• Subtask 3: 17 / 17
• Subtask 4: 0 / 53