Submission #286743

#	Time	Username	Problem	Language	Result	Execution time	Memory
286743		Marlov	Boxes with souvenirs (IOI15_boxes)	C++14	0 / 100	1 ms	384 KiB

boxes

/*
Code by @marlov       
*/
#include <iostream>
#include <fstream>
#include <string>
#include <sstream>
#include <vector>
#include <string>
#include <cmath>
#include <algorithm>
#include <iomanip>
#include <utility>
#include <set>
#include <unordered_set>
#include <map>
#include <unordered_map>
#include <stack>
#include <queue>
#include <iterator>
using namespace std;
typedef long long ll;
typedef pair<int,int> pi;

#define maxN 10000000

int dpfront[maxN],dpback[maxN];

int delivery(int N,int K,int L,int position[]){
	int ci=0;
	while(position[ci]==0){
		ci++;
		N--;
	}
	int pos[N];
	for(int i=ci;i<N;i++){
		pos[i-ci]=position[i];
	}
	for(int i=0;i<N;i++){
		if(i<K) dpfront[i]=min(L,2*pos[i]);
		else dpfront[i]=min(L,2*pos[i])+dpfront[i-K];
	}
	for(int i=0;i<N;i++){
		if(i<K) dpback[i]=min(L,2*(L-pos[N-i-1]));
		else dpback[i]=min(L,2*(L-pos[N-i-1]))+dpback[N-i-1+K];
	}
	int result=min(dpback[N],dpfront[N]);
	for(int i=1;i<N-1;i++){
		result=max(dpfront[i]+dpback[N-i-1],result);
	}
	return result;
}

/* stuff you should look for
	* int overflow, array bounds
	* special cases (n=1,n=0?)
	* do smth instead of nothing and stay organized
*/

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