oj.uz

Submission #101332

# Submission time Handle Problem Language Result Execution time Memory
101332 2019-03-18T13:30:17 Z ansol4328 Boxes with souvenirs (IOI15_boxes) C++11
0 / 100
 4 ms 512 KB 
#include<stdio.h>
#include<vector>
#include<algorithm>

using namespace std;

long long delivery(int N, int K, int L, int *positions)
{
    long long res=0;
    int st=positions[0]==0;
    vector<int> lst1, lst2;
    for(int i=st ; i<N ; i++)
    {
        if(positions[i]>L/2) break;
        lst1.push_back(positions[i]);
        positions[i]=-1;
    }
    for(int i=N-1 ; i>=0 ; i--)
    {
        if(positions[i]==-1) break;
        lst2.push_back(positions[i]);
        positions[i]=-1;
    }
    int idx1=-1, idx2=-1;
    for(int i=K-1 ; i<lst1.size() ; idx1=i, i+=K) res+=2*lst1[i];
    for(int i=K-1 ; i<lst2.size() ; idx2=i, i+=K) res+=2*(L-lst1[i]);
    int rm1=lst1.size()-idx1-1, rm2=lst2.size()-idx2-1;
    int v1=0, v2=L, v3=L;
    if(rm1) v1+=2*lst1[lst1.size()-1];
    if(rm2) v1+=2*(L-lst2[lst2.size()-1]);
    if(rm1+rm2>=K)
    {
        int x=rm1+rm2-K;
        if(x)
        {
            v2+=2*(L-lst2[idx2+x]);
            v3+=2*lst1[idx1+x];
        }
    }
    res+=min(v1,min(v2,v3));
    return res;
}

Compilation message

boxes.cpp: In function 'long long int delivery(int, int, int, int*)':
boxes.cpp:25:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=K-1 ; i<lst1.size() ; idx1=i, i+=K) res+=2*lst1[i];
                     ~^~~~~~~~~~~~
boxes.cpp:26:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=K-1 ; i<lst2.size() ; idx2=i, i+=K) res+=2*(L-lst1[i]);
                     ~^~~~~~~~~~~~
boxes.cpp:27:29: warning: conversion to 'int' from 'std::vector<int>::size_type {aka long unsigned int}' may alter its value [-Wconversion]
     int rm1=lst1.size()-idx1-1, rm2=lst2.size()-idx2-1;
             ~~~~~~~~~~~~~~~~^~
boxes.cpp:27:53: warning: conversion to 'int' from 'std::vector<int>::size_type {aka long unsigned int}' may alter its value [-Wconversion]
     int rm1=lst1.size()-idx1-1, rm2=lst2.size()-idx2-1;
                                     ~~~~~~~~~~~~~~~~^~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Incorrect 2 ms 384 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Runtime error 4 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
7 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Incorrect 2 ms 384 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Incorrect 2 ms 384 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Incorrect 2 ms 384 KB Output isn't correct
3 Halted 0 ms 0 KB -