Submission #415237

#	Time	Username	Problem	Language	Result	Execution time	Memory
415237		victoriad	선물상자 (IOI15_boxes)	C++14	35 / 100	1 ms	204 KiB

boxes

#include "boxes.h"
#include <vector>
 
using namespace std;
 
int n;
long long int dfs(bool b,int K,int box[],long long int L,int N,int tk){
    bool a=false;
    long long int m=1e12,j=1e12;
for(int i=0;i<N;i++){
    if(box[i]!=-1){
    int x=box[i];
    if(1<=K){
    K-=1;
    if(x<=L/2)b=false;
    if(x==L/2)a=true;
    if(x<=L/2)m=x;
    else if(j==1e12){
        j=x;
        if(2*m+2*(L-j)<=L){
            if(tk>=N-i){
                n=0;
                return 2*m+2*(L-j);
            }
            else
            return 2*m;
        }
        else if(tk>=2 && i+K<N){
            if(2*m+2*(L-j)<2*L-box[i+K]){
                return 2*m;
            }
        }
        }
     n--;
    box[i]=-1;
    }
    if(K==0||n==0||i==N-1){
    if((x<=L/2))return 2*x;
    else if(b){
         return 2*(L-j);
    }
    else{
        return min(L,2*(L-j)+2*m);
    }
}
}
}
}
long long delivery(int N, int K, int L, int p[]) {
    n=N;
    long long int r=0;
    for(int i=0;i<N;i++){
        if(p[i]==0){
            p[i]=-1;
            n--;
        }
        else{
            break;
        }
    }
    while(n>0){
        bool b=true;
        r+=dfs(b,K,p,L,N,K);
    }
    return r;
}

Compilation message (stderr)

boxes.cpp: In function 'long long int dfs(bool, int, int*, long long int, int, int)':
boxes.cpp:18:13: warning: conversion from 'long long int' to 'double' may change value [-Wconversion]
   18 |     else if(j==1e12){
      |             ^
boxes.cpp:8:10: warning: variable 'a' set but not used [-Wunused-but-set-variable]
    8 |     bool a=false;
      |          ^
boxes.cpp:48:1: warning: control reaches end of non-void function [-Wreturn-type]
   48 | }
      | ^

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