oj.uz

답안 #143249

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
143249 2019-08-13T12:21:16 Z daniel920712 Arranging Shoes (IOI19_shoes) C++14
10 / 100
 33 ms 3832 KB 
#include <iostream>
#include <stdio.h>
#include <vector>
#include <algorithm>
#include <assert.h>

using namespace std;
int all[15];
int Find[15];
int S1[1005];
bool F(int a,int b)
{
    return a<b;
}
long long count_swaps(std::vector<int> S)
{
    long long ans1=0,ans2=1e18,N=S.size(),i,j,k,now=0;
    long long t;
    for(i=0;i<N;i++) if(S[i]>0) all[now++]=S[i];
    sort(all,all+N/2,F);
    /*do
    {
        now=0;
        for(i=0;i<N;i++) S1[i]=S[i];
        for(i=0;i<N/2;i++)
        {
            for(j=2*i;j<N;j++)
            {
                if(S1[j]==0-all[i])
                {
                    for(k=j;k>2*i;k--)
                    {
                        now++;
                        swap(S1[k],S1[k-1]);
                    }
                    break;
                }
            }
            for(j=2*i+1;j<N;j++)
            {
                if(S1[j]==all[i])
                {
                    for(k=j;k>2*i+1;k--)
                    {
                        now++;
                        swap(S1[k],S1[k-1]);
                    }
                    break;
                }
            }

        }

        ans2=min(ans2,now);
        if(now==ans2) for(i=0;i<N/2;i++) Find[i]=all[i];


    }while(next_permutation(all,all+N/2));*/
    for(i=0;i<N;i++) S1[i]=S[i];
    for(i=0;i<N/2;i++)
    {
        for(j=2*i;j<N;j++)
        {
            if(S[j]<0)
            {
                t=0-S1[j];
                for(k=j;k>2*i;k--)
                {
                    ans1++;
                    swap(S1[k],S1[k-1]);
                }
                break;
            }
        }
        for(j=2*i+1;j<N;j++)
        {
            if(S1[j]==t)
            {
                for(k=j;k>2*i+1;k--)
                {
                    ans1++;
                    swap(S1[k],S1[k-1]);
                }
                break;
            }
        }

    }
    ans2=0;
    for(i=0;i<N;i++) S1[i]=S[i];
    for(i=0;i<N/2;i++)
    {
        for(j=2*i;j<N;j++)
        {
            if(S[j]>=0)
            {
                t=0-S1[j];
                break;

            }
        }
        for(j=2*i;j<N;j++)
        {
            if(S1[j]==t)
            {
                for(k=j;k>2*i;k--)
                {
                    ans2++;
                    swap(S1[k],S1[k-1]);
                }
                break;
            }
        }
        for(j=2*i+1;j<N;j++)
        {
            if(S1[j]==0-t)
            {
                for(k=j;k>2*i+1;k--)
                {
                    ans2++;
                    swap(S1[k],S1[k-1]);
                }
                break;
            }
        }


    }
    return min(ans1,ans2);
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:77:13: warning: 't' may be used uninitialized in this function [-Wmaybe-uninitialized]
             if(S1[j]==t)
             ^~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct

Subtask #2
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 380 KB Output is correct
4 Incorrect 2 ms 252 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Incorrect 2 ms 376 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Runtime error 33 ms 3832 KB Execution killed with signal 11 (could be triggered by violating memory limits)
6 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 380 KB Output is correct
4 Incorrect 2 ms 252 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 380 KB Output is correct
4 Incorrect 2 ms 252 KB Output isn't correct
5 Halted 0 ms 0 KB -