Submission #339601

#	Time	Username	Problem	Language	Result	Execution time	Memory
339601		bigDuck	Boxes with souvenirs (IOI15_boxes)	C++14	20 / 100	4 ms	492 KiB

boxes

#include "boxes.h"

#include<bits/stdc++.h>
using namespace std;
#define INIT  ios_base :: sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#define mp make_pair
#define pb push_back
#define ft first
#define sc second
#define ll long long
#define pii pair<int, int>
#define count_bits __builtin_popcount
#define int ll



int p1[10000010], p2[10000010];

long long delivery(int32_t N, int32_t K, int32_t L, int32_t p[]) {

    int n=N, k=K, l=L;
    int ac=k;
    int cr=0;
    for(int i=0; i<n; i++){
        if(p[i]>0){ac--;}
        if(ac==0){
            cr=cr+p[i]*2; p1[i]=cr;
            ac=k;
        }
        else{
            p1[i]=cr+p[i]*2;
        }
    }
    cr=0; ac=k;
    for(int i=n-1; i>=0; i--){
        if(p[i]>0){ac--;}
        if(ac==0){
            cr=cr+(l-p[i])*2; p2[i]=cr;
            ac=k;
        }
        else{
            p2[i]=cr+(l-p[i])*2;
        }
    }

    int mn=1e17; mn=mn*10;
    mn=min(mn, p2[0]);
    for(int i=0; i<n; i++){
        mn=min(p1[i]+p2[i+1], mn);
    }
    for(int i=-1; i<n; i++){
        for(int j=i+1; j<n; j++){
            mn=min( ((i>=0)?(p1[i]):(0))+p2[j]+(  ( (j-i-1)/k+( ( ((j-i-1)%k)>0 )?(1):(0) ) )*l ), mn );
        }
    }
    for(int i=0; i<n; i++){
        mn=min(mn, p2[i]+( ( (i/k)+( ( (i%k)>0 )?(1):(0) ) )*l ));
        mn=min(mn, p1[i]+( ( (n-i-1)/k+( ( ((n-i-1)%k)>0 )?(1):(0) ) )*l  ) );
    }
    for(int i=0; i<n; i++){
        if( (i-k)>=0 ){
            mn=min(p2[i+1]+p1[i-k]+l, mn);
        }
        mn=min(p2[i+1]+( (i+1)/k+(((i+1)%k)?(1):(0)) )*l, mn);
        mn=min(mn, p1[i]+( (n-i-1)/k+( ((n-i-1)%k)?(1):(0) ) )*l  );
    }
    mn=min(mn, ( (n/k)+ ( ((n%k)>0 )?(1):(0) ) )*l );
   return mn;
}

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