oj.uz

Submission #143105

# Submission time Handle Problem Language Result Execution time Memory
143105 2019-08-13T01:33:06 Z daniel920712 Arranging Shoes (IOI19_shoes) C++14
10 / 100
 2 ms 376 KB 
#include <iostream>
#include <stdio.h>
#include <vector>

using namespace std;
long long count_swaps(std::vector<int> S)
{
    vector<int> S1;
    long long ans1=0,ans2=0,N=S.size(),i,j,k;
    int t;
    for(i=0;i<N;i++) S1.push_back(S[i]);
    for(i=0;i<N/2;i++)
    {
        for(j=2*i;j<N;j++)
        {
            if(S[j]<0)
            {
                for(k=j;k>2*i;k--) 
                {
                    ans1++;
                    swap(S[k],S[k-1]);
                }
                break;
            }
        }
        for(j=2*i+1;j<N;j++)
        {
            if(S[j]==t)
            {
                for(k=j;k>2*i+1;k--)
                {
                    ans1++;
                    swap(S[k],S[k-1]);
                }
                break;
            }
        }

    }


    return ans1;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:9:22: warning: unused variable 'ans2' [-Wunused-variable]
     long long ans1=0,ans2=0,N=S.size(),i,j,k;
                      ^~~~
shoes.cpp:28:13: warning: 't' may be used uninitialized in this function [-Wmaybe-uninitialized]
             if(S[j]==t)
             ^~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Incorrect 2 ms 376 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Incorrect 2 ms 256 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 252 KB Output is correct
2 Incorrect 2 ms 348 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 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Incorrect 2 ms 376 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Incorrect 2 ms 376 KB Output isn't correct
4 Halted 0 ms 0 KB -