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Submission #787717

# Submission time Handle Problem Language Result Execution time Memory
787717 2023-07-19T11:37:32 Z vnm06 Sorting (IOI15_sorting) C++14
100 / 100
 116 ms 22664 KB 
#include "sorting.h"
#include<bits/stdc++.h>
using namespace std;

int n;
int a[200005];
int b[200005];

int prebroj()
{
    int ans=n;
    for(int i=0; i<n; i++)
    {
        if(!b[i]) continue;
        ans--;
        int t=b[i]-1;
        b[i]=0;
        while(b[t]!=0)
        {
            int t2=b[t];
            b[t]=0;
            t=t2-1;
        }
    }
    return ans;
}

int sp[2][200005], brsp=0;
int pos[200005];

int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[])
{
    n=N;
    for(int i=0; i<n; i++) a[i]=S[i]+1;
    int le=-1, ri=M;
    while(ri-le>1)
    {
        int mid=(le+ri)/2;
        for(int i=0; i<n; i++) b[i]=a[i];
        for(int j=0; j<mid; j++) swap(b[X[j]], b[Y[j]]);
        if(prebroj()<=mid) ri=mid;
        else le=mid;
    }
    for(int i=0; i<n; i++) b[i]=a[i];
    for(int j=0; j<ri; j++) swap(b[X[j]], b[Y[j]]);
    for(int i=0; i<n; i++) pos[b[i]]=i;
    for(int i=0; i<n; i++)
    {
        if(b[i]==i+1) continue;
        sp[0][brsp]=b[i];
        sp[1][brsp]=i+1;
        brsp++;
        int tp=pos[i+1];
        pos[b[i]]=pos[i+1];
        pos[i+1]=i;
        swap(b[i], b[tp]);
    }
    for(int i=0; i<n; i++) pos[a[i]]=i;
    for(int i=0; i<brsp; i++)
    {
        swap(a[X[i]], a[Y[i]]);
        swap(pos[a[X[i]]], pos[a[Y[i]]]);
        P[i]=pos[sp[0][i]];
        Q[i]=pos[sp[1][i]];
        swap(pos[sp[0][i]], pos[sp[1][i]]);
        swap(a[pos[sp[0][i]]], a[pos[sp[1][i]]]);

    }
    for(int i=brsp; i<ri; i++) P[i]=Q[i]=0;
	return ri;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 312 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 312 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 312 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 324 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 2 ms 596 KB Output is correct
22 Correct 1 ms 580 KB Output is correct
23 Correct 1 ms 468 KB Output is correct
24 Correct 1 ms 468 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 1 ms 468 KB Output is correct
27 Correct 1 ms 468 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 452 KB Output is correct
5 Correct 1 ms 452 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 448 KB Output is correct
9 Correct 1 ms 448 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct

Subtask #6
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 452 KB Output is correct
5 Correct 1 ms 452 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 448 KB Output is correct
9 Correct 1 ms 448 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 93 ms 19972 KB Output is correct
16 Correct 99 ms 20412 KB Output is correct
17 Correct 109 ms 21484 KB Output is correct
18 Correct 48 ms 15568 KB Output is correct
19 Correct 94 ms 19216 KB Output is correct
20 Correct 99 ms 19836 KB Output is correct
21 Correct 98 ms 19824 KB Output is correct
22 Correct 89 ms 16900 KB Output is correct
23 Correct 107 ms 22364 KB Output is correct
24 Correct 110 ms 22056 KB Output is correct
25 Correct 109 ms 21736 KB Output is correct
26 Correct 98 ms 19788 KB Output is correct
27 Correct 87 ms 19092 KB Output is correct
28 Correct 110 ms 21916 KB Output is correct
29 Correct 106 ms 21076 KB Output is correct
30 Correct 73 ms 18124 KB Output is correct
31 Correct 107 ms 21512 KB Output is correct
32 Correct 109 ms 21644 KB Output is correct
33 Correct 111 ms 22020 KB Output is correct
34 Correct 107 ms 21916 KB Output is correct
35 Correct 92 ms 18972 KB Output is correct
36 Correct 39 ms 16720 KB Output is correct
37 Correct 116 ms 22664 KB Output is correct
38 Correct 111 ms 21720 KB Output is correct
39 Correct 109 ms 21896 KB Output is correct