CSES - Datatähti 2017 alku - Results
Submission details
Task:Järjestys
Sender:Shrike
Submission time:2016-10-15 20:20:44 +0300
Language:C++
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#10.05 s1details
#20.06 s2details
#3--3details

Compiler report

input/code.cpp: In function 'void insertionSort(int*, int)':
input/code.cpp:67:12: warning: unused variable 'j' [-Wunused-variable]
     int i, j;
            ^
input/code.cpp: In function 'int main()':
input/code.cpp:125:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (i = 0; i < moves.size(); i++)
                             ^

Code

#include <iostream>
#include <string>
#include <vector>
#include <sstream>
#include <cstdlib>
using namespace std;
vector<int> moves;
int ceilSearch(int arr[], int low, int high, int x)
{
int mid;
/* If x is smaller than or equal to the first element,
then return the first element */
if(x <= arr[low])
return low;
/* If x is greater than the last element, then return -1 */
if(x > arr[high])
return -1;
/* get the index of middle element of arr[low..high]*/
mid = (low + high)/2; /* low + (high – low)/2 */
/* If x is same as middle element, then return mid */
if(arr[mid] == x)
return mid;
/* If x is greater than arr[mid], then either arr[mid + 1]
is ceiling of x, or ceiling lies in arr[mid+1...high] */
if(arr[mid] < x)
{
if(mid + 1 <= high && x <= arr[mid+1])
return mid + 1;
else
return ceilSearch(arr, mid+1, high, x);
}
/* If x is smaller than arr[mid], then either arr[mid]
is ceiling of x or ceiling lies in arr[mid-1...high] */
if (mid - 1 >= low && x > arr[mid-1])
return mid;
else
return ceilSearch(arr, low, mid - 1, x);
}
/* Reverses arr[0..i] */
void flip(int arr[], int i)
{
moves.push_back(i+1);
int temp, start = 0;
while (start < i)
{
temp = arr[start];
arr[start] = arr[i];
arr[i] = temp;
start++;
i--;
}
}
/* Function to sort an array using insertion sort, binary search and flip */
void insertionSort(int arr[], int size)
{
int i, j;
// Start from the second element and one by one insert arr[i]
// in already sorted arr[0..i-1]
for(i = 1; i < size; i++)
{
// Find the smallest element in arr[0..i-1] which is also greater than
// or equal to arr[i]
int j = ceilSearch(arr, 0, i-1, arr[i]);
// Check if there was no element greater than arr[i]
if (j != -1)
{
// Put arr[i] before arr[j] using following four flip operations
flip(arr, j-1);
flip(arr, i-1);
flip(arr, i);
flip(arr, j);
}
}
}
int
atoi (string c)
{
stringstream s;
int i;
s << c;
s >> i;
return i;
}
int
main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
string in;
int c;
getline (cin, in);
c = atoi (in);
int jarj[c];
getline (cin, in);
istringstream ssin(in);
int i;
i = 0;
while (ssin >> jarj[i]) {
i++;
}
insertionSort (jarj, c);
cout << moves.size() << "\n";
for (i = 0; i < moves.size(); i++)
cout << moves[i] << " ";
cout << "\n";
return 0;
}

Test details

Test 1

Group: 1

Verdict:

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
32
0 1 2 1 1 2 3 2 2 3 4 3 2 4 5 ...

Test 2

Group: 2

Verdict:

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

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

user output
3984
0 3 4 1 1 4 5 2 4 6 7 5 1 7 8 ...

Test 3

Group: 3

Verdict:

input
100000
94703 47808 62366 31885 7091 8...

correct output
399956
98676 98676 98675 98676 62994 ...

user output
(empty)