Submission #134519

#	Time	Username	Problem	Language	Result	Execution time	Memory
134519		Boxworld	Boxes with souvenirs (IOI15_boxes)	C++14	20 / 100	2 ms	380 KiB

boxes

#include "boxes.h"
#include <bits/stdc++.h>
using namespace std;
long long delivery(int N, int K, int L, int p[]){
    if (K==1){
        long long ans=0;
        for (int i=0;i<N;i++){
            if (p[i]*2<L)ans=ans+p[i]*2;
            else ans=ans+(L-p[i])*2;
        }
        return ans;
    }else if (K==N){

        int Mli=p[0],Mlx=p[0],Mri=p[N-1],Mrx=p[N-1];
        for (int i=0;i<N;i++){
            if (p[i]*2<L)Mlx=p[i];
            if (p[i]*2==L)return L;
            if (p[i]*2>L){Mri=p[i];break;}
        }
        if (Mli*2>L){
            return (L-Mli)*2;
        }else if (Mrx*2<L){
            return Mrx*2;
        }else{
            if (L<Mlx*2+(L-Mri)*2)return L;
            else return Mlx*2+(L-Mri)*2;
        }
    }
}

Compilation message (stderr)

boxes.cpp: In function 'long long int delivery(int, int, int, int*)':
boxes.cpp:29:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

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