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Submission #590888

# Submission time Handle Problem Language Result Execution time Memory
590888 2022-07-06T13:13:52 Z yutabi Sorting (IOI15_sorting) C++14
100 / 100
 371 ms 16492 KB 
#include "sorting.h"


#include <bits/stdc++.h>
using namespace std;


#define pb push_back


typedef pair <int,int> ii;


int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[])
{
	M=N;

	int l=0;

	int r=M;

	int m=(l+r)/2;

	vector <ii> ans;

	while(l!=r)
	{
		vector <ii> nw;

		for(int i=0;i<m;i++)
		{
			nw.pb(ii(X[i],Y[i]));
		}

		int s[N];
		int loc[N];

		int fnl[N];
		int fnl_loc[N];

		int temp[N];

		for(int i=0;i<N;i++)
		{
			s[i]=S[i];
			loc[s[i]]=i;

			temp[i]=s[i];
		}

		for(int i=0;i<nw.size();i++)
		{
			swap(temp[nw[i].first],temp[nw[i].second]);
		}

		for(int i=0;i<N;i++)
		{
			fnl[i]=temp[i];

			fnl_loc[fnl[i]]=i;
		}

		int ptr=0;

		while(ptr<N && fnl[ptr]==ptr)
		{
			ptr++;
		}

		vector <ii> nw_ans;

		for(int i=0;i<m;i++)
		{
			swap(s[nw[i].first],s[nw[i].second]);

			swap(loc[s[nw[i].first]],loc[s[nw[i].second]]);

			if(ptr<N)
			{
				int num1=ptr;

				int num2=fnl[ptr];

				nw_ans.pb(ii(loc[num1],loc[num2]));

				swap(s[loc[num1]],s[loc[num2]]);

				swap(loc[num1],loc[num2]);


				swap(fnl[fnl_loc[num1]],fnl[fnl_loc[num2]]);

				swap(fnl_loc[num1],fnl_loc[num2]);
			}

			else
			{
				nw_ans.pb(ii(0,0));
			}

			while(ptr<N && fnl[ptr]==ptr)
			{
				ptr++;
			}
		}

		if(ptr==N)
		{
			ans=nw_ans;

			r=m;
		}

		else
		{
			l=m+1;
		}

		m=(l+r)/2;
	}


	for(int i=0;i<m;i++)
	{
		P[i]=ans[i].first;
		Q[i]=ans[i].second;
	}

	return m;
}

Compilation message

sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:51:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   51 |   for(int i=0;i<nw.size();i++)
      |               ~^~~~~~~~~~

Subtask #1
8.0 / 8.0

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

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 468 KB Output is correct
2 Correct 2 ms 468 KB Output is correct
3 Correct 2 ms 468 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 340 KB Output is correct
7 Correct 2 ms 364 KB Output is correct
8 Correct 2 ms 468 KB Output is correct
9 Correct 2 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 3 ms 468 KB Output is correct
12 Correct 2 ms 408 KB Output is correct
13 Correct 2 ms 468 KB Output is correct
14 Correct 1 ms 340 KB Output is correct

Subtask #6
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 468 KB Output is correct
2 Correct 2 ms 468 KB Output is correct
3 Correct 2 ms 468 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 340 KB Output is correct
7 Correct 2 ms 364 KB Output is correct
8 Correct 2 ms 468 KB Output is correct
9 Correct 2 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 3 ms 468 KB Output is correct
12 Correct 2 ms 408 KB Output is correct
13 Correct 2 ms 468 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 254 ms 14828 KB Output is correct
16 Correct 280 ms 15096 KB Output is correct
17 Correct 346 ms 15872 KB Output is correct
18 Correct 71 ms 11200 KB Output is correct
19 Correct 218 ms 12616 KB Output is correct
20 Correct 219 ms 14732 KB Output is correct
21 Correct 226 ms 14736 KB Output is correct
22 Correct 270 ms 15984 KB Output is correct
23 Correct 265 ms 16252 KB Output is correct
24 Correct 354 ms 16032 KB Output is correct
25 Correct 367 ms 15896 KB Output is correct
26 Correct 217 ms 13140 KB Output is correct
27 Correct 192 ms 12708 KB Output is correct
28 Correct 339 ms 15824 KB Output is correct
29 Correct 325 ms 15340 KB Output is correct
30 Correct 136 ms 11972 KB Output is correct
31 Correct 327 ms 15624 KB Output is correct
32 Correct 296 ms 15744 KB Output is correct
33 Correct 352 ms 16024 KB Output is correct
34 Correct 310 ms 15996 KB Output is correct
35 Correct 209 ms 12688 KB Output is correct
36 Correct 63 ms 11972 KB Output is correct
37 Correct 371 ms 16492 KB Output is correct
38 Correct 328 ms 15864 KB Output is correct
39 Correct 334 ms 16008 KB Output is correct