CSES - Datatähti 2017 alku - Results
Submission details
Task:Järjestys
Sender:ankka22
Submission time:2016-10-16 13:07:13 +0300
Language:C++
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED19
#2ACCEPTED37
#3ACCEPTED44
Test results
testverdicttimegroup
#1ACCEPTED0.06 s1details
#2ACCEPTED0.06 s2details
#3ACCEPTED0.11 s3details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:63:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < s.size(); i++) {
                             ^

Code

#include <iostream>
#include <math.h>
#include <algorithm>
static void sswap(std::vector<int> &s, int n) {
	if (n == 3) {
		s.push_back(3);
		s.push_back(2);
		s.push_back(2);
		return;
	} else if (n == 2) {
		s.push_back(2);
		return;
	} else if (n == 1) {
		return;
	}
	s.push_back(n);
	s.push_back(n - 1);
	s.push_back(n - 2);

	s.push_back(n - 1);
}
int main() {
	int n;
	std::vector<int> v;
  std::vector<int> s;
	std::vector<int> nr;
	std::cin >> n;
	int arr[1000001];
  for (int i = 1; i < n+1; i++) {
    int t;
    std::cin >> t;
		arr[i] = t;
    v.push_back(t);
  }
	int c = 0;
	int ready = 0;
	while (c < 5*n) {
		int firstRN = arr[1];
		if (firstRN == 1) {
			bool fail = false;
			for (int i = 2; i < n + 1; i++) {
				if (arr[i] != i) {
					arr[1] = arr[i];
					arr[i] = 1;
					sswap(s, i);
					fail = true;
					break;
				}
			}
			if (!fail) {
				break;
			} else {
				continue;
			}
		}
		arr[1] = arr[firstRN];
		arr[firstRN] = firstRN;
		sswap(s, firstRN);
		ready++;
		c++;
	}
	std::cout << s.size() << std::endl;
	for (int i = 0; i < s.size(); i++) {
		std::cout << s.at(i) << " ";
	}
	std::cout << std::endl;
	return 0;
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
10
9 3 4 7 6 5 10 2 8 1

correct output
32
10 10 9 10 9 8 7 9 4 2 1 4 5 2...

user output
36
9 8 7 8 8 7 6 7 2 3 2 2 4 3 2 ...

Test 2

Group: 2

Verdict: ACCEPTED

input
1000
650 716 982 41 133 1000 876 92...

correct output
3984
207 207 206 207 128 127 126 12...

user output
3996
650 649 648 649 328 327 326 32...

Test 3

Group: 3

Verdict: ACCEPTED

input
100000
94703 47808 62366 31885 7091 8...

correct output
399956
98676 98676 98675 98676 62994 ...

user output
400027
94703 94702 94701 94702 71577 ...