Submission #1224012

#	Time	Username	Problem	Language	Result	Execution time	Memory
1224012		moondarkside	Boxes with souvenirs (IOI15_boxes)	C++20	50 / 100	30 ms	14204 KiB

boxes

#include<bits/stdc++.h>
using namespace std;


long long getCost(vector<long long>& Arr,int SubT,int k){
	long long cost=0;
	for(int i=Arr.size()-1-SubT;i>-1;i-=k){
		cost+=Arr[i]*2LL;
	}
	return cost;
}

long long delivery(int N,int K, int L, int* Pos){
	vector<long long> CostR(1,0);
	vector<long long> CostL(1,0);

	for(int i=0;i<N && Pos[i]<=L/2;i++){
		CostR.push_back(Pos[i]);
	}
	for(int i=N-1;i>-1 && Pos[i]>L/2;i--){
		CostL.push_back(L-Pos[i]);
	}
	
	
	long long minC=1000000000000;
	int minCI=0;
	for(int loopS=0;loopS<=K;loopS++){
		int loopSR=K-loopS;
		long long cost=0;
		if((int)CostR.size()-1<loopSR){
			cost=1000000000000;
		}
		else if((int)CostL.size()-1<loopS){
			cost=1000000000000;
		}
		else{
			cost=CostR[(CostR.size()-loopSR-1)%K]+CostL[(CostL.size()-loopS-1)%K];
		}
		if(cost<minC){
			minC=cost;
			minCI=loopS;
		}
	}
	return min(getCost(CostR,0,K)+getCost(CostL,0,K),getCost(CostR,K-minCI,K)+getCost(CostL,minCI,K)+L);

}

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