Submission #296881

#	Time	Username	Problem	Language	Result	Execution time	Memory
296881		Hemimor	Boxes with souvenirs (IOI15_boxes)	C++14	0 / 100	3 ms	640 KiB

boxes

#include "boxes.h"
#include <algorithm>
#include <iostream>
#include <iomanip>
#include <numeric>
#include <cassert>
#include <vector>
#include <cmath>
#include <queue>
#include <set>
#include <map>
#define syosu(x) fixed<<setprecision(x)
using namespace std;
typedef long long ll;
typedef unsigned int uint;
typedef unsigned long long ull;
typedef pair<int,int> P;
typedef pair<double,double> pdd;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<double> vd;
typedef vector<vd> vvd;
typedef vector<ll> vl;
typedef vector<vl> vvl;
typedef vector<string> vs;
typedef vector<P> vp;
typedef vector<vp> vvp;
typedef vector<pll> vpll;
typedef pair<P,int> pip;
typedef vector<pip> vip;
const int inf=1<<30;
const ll INF=1ll<<60;
const double pi=acos(-1);
const double eps=1e-8;
const ll mod=1e9+7;
const int dx[4]={-1,0,1,0},dy[4]={0,-1,0,1};

ll delivery(int N, int K, int L, int p[]) {
	vl c;
	sort(p,p+N);
	for(int i=0;i<N;i++) if(p[i]) c.push_back(p[i]);
	N=(int)c.size();
	vl a(N+1),b(N+1); 
	for(int i=0;i<N;i++) a[i+1]=(i+1-K>=0?a[i+1-K]:0)+c[i];
	for(int i=N-1;i>=0;i--) b[N-i]=(N-i-K>=0?b[N-i-K]:0)+L-c[i];
	ll res=INF;
	vl d(K,INF);
/*	auto f=[&](ll i,ll j){
		return a[i]*2+b[j]*2+(ll)(N-i-j+K-1)/K*L;
	};*/
	ll tmp=INF;
	for(int i=0;i<=N;i++){
		d[i]=min(d[i]+K,a[i]*2);
//		tmp=min(tmp,d[i]);
		res=min(res,b[N-i]*2+d[i]);
	}
/*	for(int i=1;i<=N;i++) res=min({res,f(i,0),f(0,i)});
	for(int i=1;i<N;i++){
		for(int j=0;j*K<N-i;j++) res=min(res,f(i,N-i-j*K));
	}*/
//	cout<<res<<endl;
	return res;
}

Compilation message (stderr)

boxes.cpp: In function 'll delivery(int, int, int, int*)':
boxes.cpp:52:5: warning: unused variable 'tmp' [-Wunused-variable]
   52 |  ll tmp=INF;
      |     ^~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30