Submission #426096

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
426096	2021-06-13T13:57:39 Z	_fractal	Sorting (IOI15_sorting)	C++14	36 / 100	1000 ms	620 KB

sorting

#include "sorting.h"
#include <iostream>
#include <algorithm>
using namespace std;
 

int findSwapPairs(int N, int SS[], int M, int X[], int Y[], int P[], int Q[]) {
	int A[N], pos[N], L[M], R[M], ret = (1<<30), S[N];
	for (int m = 0; m < M; ++m) {
		for (int i = 0; i < N; ++i)
			A[i] = i, S[i] = SS[i];
		for (int i = m; i >= 0; --i)
			swap(A[X[i]], A[Y[i]]);
		int r = -1;
		for (int i = 0; i <= m; ++i) {
			P[i] = Q[i] = 0;
			bool f = 1;
			for (int j = 1; j < N; ++j)
				if (S[j - 1] > S[j])
					f = 0;
			if (f) {
				r = i;
				break;
			}
			swap(S[X[i]], S[Y[i]]);
			swap(A[X[i]], A[Y[i]]);
			f = 1;
			for (int j = 1; j < N; ++j)
				if (S[j - 1] > S[j])
					f = 0;
			if (f) {
				r = i + 1;
				break;
			}
			for (int j = 0; j < N; ++j)
				pos[A[j]] = j;
			for (int j = 0; j < N; ++j) {
				if (pos[S[j]] != j) {
					Q[i] = j, P[i] = pos[S[j]];
					break;
				}
			}
			swap(S[Q[i]], S[P[i]]);
		}
		bool f = 1;
		for (int i = 1; i < N; ++i)
			if (S[i - 1] > S[i])
				f = 0;
		if (!f) continue;
		if (r == -1) r = m + 1;
		if (ret >= r) {
			ret = r;
			for (int i = 0; i < r; ++i)
				L[i] = Q[i], R[i] = P[i];
		}
	}
	for (int i = 0; i < ret; ++i)
		Q[i] = L[i], P[i]= R[i];
	for (int i = 0; i < ret; ++i)
		cerr << X[i] << " " << Y[i] << "\n" << P[i] << " " << Q[i] << '\n';
	return ret;
}

Subtask #1

8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct

Subtask #2

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	292 KB	Output is correct
10	Correct	175 ms	332 KB	Output is correct
11	Correct	162 ms	384 KB	Output is correct
12	Correct	148 ms	452 KB	Output is correct

Subtask #3

16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	144 ms	332 KB	Output is correct
4	Correct	176 ms	344 KB	Output is correct
5	Correct	168 ms	344 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct

Subtask #4

0 / 18.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	1 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	292 KB	Output is correct
10	Correct	175 ms	332 KB	Output is correct
11	Correct	162 ms	384 KB	Output is correct
12	Correct	148 ms	452 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	144 ms	332 KB	Output is correct
16	Correct	176 ms	344 KB	Output is correct
17	Correct	168 ms	344 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	292 KB	Output is correct
21	Execution timed out	1076 ms	620 KB	Time limit exceeded
22	Halted	0 ms	0 KB	-

Subtask #5

0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	1086 ms	492 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #6

0 / 26.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	1086 ms	492 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-