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Submission #993160

# Submission time Handle Problem Language Result Execution time Memory
993160 2024-06-05T11:38:24 Z bachhoangxuan Sorting (IOI15_sorting) C++17
100 / 100
 186 ms 20400 KB 
#include "sorting.h"
#include<bits/stdc++.h>
using namespace std;

int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) {
    auto check = [&](int d){
        vector<int> p(N);
        for(int i=0;i<N;i++) p[i]=S[i];
        for(int i=0;i<d;i++){
            swap(p[X[i]],p[Y[i]]);
            P[i]=Q[i]=0;
        }
        int k=0;
        vector<bool> vis(N);
        for(int i=0;i<N;i++){
            if(!vis[i]){
                int u=i;
                while(!vis[u]){
                    vis[u]=true;
                    if(p[u]!=i) P[k]=u,Q[k++]=p[u];
                    u=p[u];
                }
            }
        }
        if(k<=d){
            vector<int> f(N);
            for(int i=0;i<N;i++) f[S[i]]=i,p[i]=S[i];
            for(int i=0;i<k;i++){
                swap(p[X[i]],p[Y[i]]);
                swap(f[p[X[i]]],f[p[Y[i]]]);
                int x=f[P[i]],y=f[Q[i]];
                swap(p[x],p[y]);
                swap(f[p[x]],f[p[y]]);
                P[i]=x,Q[i]=y;
            }
        }
        return k<=d;
    };
    int l=0,r=M,res=M;
    while(l<=r){
        int mid=(l+r)>>1;
        if(check(mid)) res=mid,r=mid-1;
        else l=mid+1;
    }
    check(res);
	return res;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 436 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 436 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 436 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 424 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 1 ms 444 KB Output is correct
4 Correct 1 ms 444 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 600 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 436 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 436 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 424 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 604 KB Output is correct
15 Correct 1 ms 444 KB Output is correct
16 Correct 1 ms 444 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 600 KB Output is correct
19 Correct 1 ms 436 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 600 KB Output is correct
22 Correct 1 ms 700 KB Output is correct
23 Correct 1 ms 704 KB Output is correct
24 Correct 1 ms 572 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 1 ms 708 KB Output is correct
27 Correct 1 ms 604 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 2 ms 544 KB Output is correct
3 Correct 1 ms 444 KB Output is correct
4 Correct 1 ms 444 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 508 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 448 KB Output is correct
9 Correct 1 ms 508 KB Output is correct
10 Correct 1 ms 580 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 444 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 348 KB Output is correct

Subtask #6
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 2 ms 544 KB Output is correct
3 Correct 1 ms 444 KB Output is correct
4 Correct 1 ms 444 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 508 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 448 KB Output is correct
9 Correct 1 ms 508 KB Output is correct
10 Correct 1 ms 580 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 444 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 156 ms 17240 KB Output is correct
16 Correct 160 ms 17892 KB Output is correct
17 Correct 160 ms 19696 KB Output is correct
18 Correct 79 ms 17220 KB Output is correct
19 Correct 132 ms 18240 KB Output is correct
20 Correct 143 ms 18684 KB Output is correct
21 Correct 142 ms 19756 KB Output is correct
22 Correct 144 ms 13980 KB Output is correct
23 Correct 186 ms 20400 KB Output is correct
24 Correct 165 ms 20168 KB Output is correct
25 Correct 178 ms 18992 KB Output is correct
26 Correct 137 ms 18652 KB Output is correct
27 Correct 120 ms 18284 KB Output is correct
28 Correct 158 ms 19196 KB Output is correct
29 Correct 161 ms 18700 KB Output is correct
30 Correct 91 ms 18420 KB Output is correct
31 Correct 166 ms 20124 KB Output is correct
32 Correct 152 ms 19560 KB Output is correct
33 Correct 170 ms 19176 KB Output is correct
34 Correct 164 ms 18972 KB Output is correct
35 Correct 124 ms 18960 KB Output is correct
36 Correct 60 ms 19428 KB Output is correct
37 Correct 160 ms 20016 KB Output is correct
38 Correct 150 ms 18784 KB Output is correct
39 Correct 168 ms 19232 KB Output is correct