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Submission #729668

# Submission time Handle Problem Language Result Execution time Memory
729668 2023-04-24T10:36:12 Z Rafi22 Swap (BOI16_swap) C++14
100 / 100
 70 ms 7548 KB 
#include <bits/stdc++.h>

using namespace std;

#define endl '\n'
#define st first
#define nd second
#define pb push_back
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()
#define ll long long
ll mod=998244353;
int inf=1000000007;
ll infl=1000000000000000007;

const int N=200007;

int a[4*N];
int is[4*N];

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n;
    cin>>n;
    for(int i=1;i<=n;i++) cin>>a[i];
    for(int i=n+1;i<=4*n;i++) a[i]=inf;
    for(int i=1;i<=n;i++)
    {
        int mn=inf,k,x=i;
        if(is[i]!=1&&is[2*i]!=1&&is[2*i+1]!=1)
        {
            mn=a[i];
            k=i;
        }
        while(x>1)
        {
            //cout<<i<<" "<<x<<" "<<is[x]<<endl;
            if(is[x]==2) break;
            bool L=x%2;
            x/=2;
            if(L)
            {
                if(is[2*x]!=1&&is[x]!=1&&mn>a[x])
                {
                    mn=a[x];
                    k=x;
                }
                if(is[2*x]!=2&&mn>a[2*x])
                {
                    mn=a[2*x];
                    k=2*x;
                }
                if(is[2*x]==1) break;
            }
            else
            {
                if(is[x]!=1&&mn>a[x])
                {
                    mn=a[x];
                    k=x;
                }
            }
        }
        int c=min({mn,a[2*i],a[2*i+1]});
        cout<<c<<" ";
        if(c==mn)
        {
            x=i;
            if(k==i)
            {
                is[i]=2;
                x=0;
            }
            while(x>1)
            {
                is[x]=1;
                bool L=x%2;
                x/=2;
                if(L)
                {
                    if(k==x)
                    {
                        is[2*x]=2;
                        is[x]=2;
                        break;
                    }
                    if(k==2*x)
                    {
                        is[2*x]=1;
                        break;
                    }
                    is[2*x]=2;
                }
                else
                {
                    if(k==x)
                    {
                        is[x]=2;
                        break;
                    }
                }
            }
            is[2*i]=2;
            is[2*i+1]=2;
        }
        else if(c==a[2*i])
        {
            is[2*i]=1;
            is[2*i+1]=2;
        }
        else is[2*i+1]=1;
    }

    return 0;
}

Compilation message

swap.cpp: In function 'int main()':
swap.cpp:90:21: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized]
   90 |                     if(k==2*x)
      |                     ^~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 328 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 328 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 212 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 328 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 328 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 328 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 328 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 15 ms 2016 KB Output is correct
17 Correct 16 ms 2004 KB Output is correct
18 Correct 11 ms 2012 KB Output is correct
19 Correct 13 ms 2004 KB Output is correct
20 Correct 17 ms 1984 KB Output is correct

Subtask #5
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 328 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 328 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 15 ms 2016 KB Output is correct
17 Correct 16 ms 2004 KB Output is correct
18 Correct 11 ms 2012 KB Output is correct
19 Correct 13 ms 2004 KB Output is correct
20 Correct 17 ms 1984 KB Output is correct
21 Correct 46 ms 7504 KB Output is correct
22 Correct 55 ms 7528 KB Output is correct
23 Correct 63 ms 7548 KB Output is correct
24 Correct 70 ms 7524 KB Output is correct
25 Correct 64 ms 7472 KB Output is correct