CSES - Datatähti 2021 alku

Submission details
Task:	Ratsun reitit
Sender:	Juksu
Submission time:	2020-09-30 10:32:38 +0300
Language:	C++ (C++11)
Status:	READY
Result:	100

Feedback
group	verdict	score
#1	ACCEPTED	27
#2	ACCEPTED	31
#3	ACCEPTED	42

Test results
test	verdict	time	group
#1	ACCEPTED	0.01 s	1, 2, 3	details
#2	ACCEPTED	0.01 s	1, 2, 3	details
#3	ACCEPTED	0.01 s	1, 2, 3	details
#4	ACCEPTED	0.01 s	1, 2, 3	details
#5	ACCEPTED	0.01 s	1, 2, 3	details
#6	ACCEPTED	0.01 s	1, 2, 3	details
#7	ACCEPTED	0.01 s	1, 2, 3	details
#8	ACCEPTED	0.01 s	2, 3	details
#9	ACCEPTED	0.03 s	2, 3	details
#10	ACCEPTED	0.03 s	2, 3	details
#11	ACCEPTED	0.11 s	3	details
#12	ACCEPTED	0.33 s	3	details
#13	ACCEPTED	0.34 s	3	details

Code

#include <bits/stdc++.h>

using namespace std;
int n;
void b(int **a, int d, int x, int y){
  if (a[x][y] == -1 || d < a[x][y]) a[x][y] = d;
  if (x - 2 >= 0) {
      if (y - 1 >= 0 && (a[x - 2][y - 1] == -1 || a[x - 2][y - 1] > d + 1)) b(a, d + 1, x - 2, y - 1);
      if (y + 1 < n && (a[x - 2][y + 1] == -1 || a[x - 2][y + 1] > d + 1)) b(a, d + 1, x - 2, y + 1);
  }
  if (x + 2 < n) {
      if (y - 1 >= 0 && (a[x + 2][y - 1] == -1 || a[x + 2][y - 1] > d + 1)) b(a, d + 1, x + 2, y - 1);
      if (y + 1 < n && (a[x + 2][y + 1] == -1 || a[x + 2][y + 1] > d + 1)) b(a, d + 1, x + 2, y + 1);
  }
  if (y - 2 >= 0) {
      if (x - 1 >= 0 && (a[x - 1][y - 2] == -1 || a[x - 1][y - 2] > d + 1)) b(a, d + 1, x - 1, y - 2);
      if (x + 1 < n && (a[x + 1][y - 2] == -1 || a[x + 1][y - 2] > d + 1)) b(a, d + 1, x + 1, y - 2);
  }
  if (y + 2 < n) {
      if (x - 1 >= 0 && (a[x - 1][y + 2] == -1 || a[x - 1][y + 2] > d + 1)) b(a, d + 1, x - 1, y + 2);
      if (x + 1 < n && (a[x + 1][y + 2] == -1 || a[x + 1][y + 2] > d + 1)) b(a, d + 1, x + 1, y + 2);
  }
}


int main(){
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cin >> n;
  int **a;
  a = new int *[n];
  for (int i = 0; i < n; i++) {
    a[i] = new int[n];
  }
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < n; j++) {
      a[i][j] = -1;
    }
  }
  b(a, 0, 0, 0);
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < n; j++){
      cout << a[j][i] << " ";
    }
    cout << "\n";
  }
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
`4` view save

correct output
`0 3 2 5 3 4 1 2 2 1 4 3 5 2 3 2` view save

user output
`0 3 2 5 3 4 1 2 2 1 4 3 5 2 3 2` view save

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
`5` view save

correct output
`0 3 2 3 2 3 4 1 2 3 2 1 4 3 2 3 2 3 2 3 2 3 2 3 4` view save

user output
`0 3 2 3 2 3 4 1 2 3 2 1 4 3 2 3 2 3 2 3 2 3 2 3 4` view save

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
`6` view save

correct output
`0 3 2 3 2 3 3 4 1 2 3 4 2 1 4 3 2 3 3 2 3 2 3 4 2 3 2 3 4 3 ...` view save

user output
`0 3 2 3 2 3 3 4 1 2 3 4 2 1 4 3 2 3 3 2 3 2 3 4 2 3 2 3 4 3 ...` view save

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

input
`7` view save

correct output
`0 3 2 3 2 3 4 3 4 1 2 3 4 3 2 1 4 3 2 3 4 3 2 3 2 3 4 3 2 3 2 3 4 3 4 ...` view save

user output
`0 3 2 3 2 3 4 3 4 1 2 3 4 3 2 1 4 3 2 3 4 3 2 3 2 3 4 3 2 3 2 3 4 3 4 ...` Truncated

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

input
`8` view save

correct output
`0 3 2 3 2 3 4 5 3 4 1 2 3 4 3 4 2 1 4 3 2 3 4 5 3 2 3 2 3 4 3 4 2 3 2 3 4 3 4 5 ...` view save

user output
`0 3 2 3 2 3 4 5 3 4 1 2 3 4 3 4 2 1 4 3 2 3 4 5 3 2 3 2 3 4 3 4 2 3 2 3 4 3 4 5 ...` Truncated

Test 6

Group: 1, 2, 3

Verdict: ACCEPTED

input
`9` view save

correct output
`0 3 2 3 2 3 4 5 4 3 4 1 2 3 4 3 4 5 2 1 4 3 2 3 4 5 4 3 2 3 2 3 4 3 4 5 2 3 2 3 4 3 4 5 4 ...` view save

user output
`0 3 2 3 2 3 4 5 4 3 4 1 2 3 4 3 4 5 2 1 4 3 2 3 4 5 4 3 2 3 2 3 4 3 4 5 2 3 2 3 4 3 4 ...` Truncated

Test 7

Group: 1, 2, 3

Verdict: ACCEPTED

input
`10` view save

correct output
`0 3 2 3 2 3 4 5 4 5 3 4 1 2 3 4 3 4 5 6 2 1 4 3 2 3 4 5 4 5 3 2 3 2 3 4 3 4 5 6 2 3 2 3 4 3 4 5 4 5 ...` view save

user output
`0 3 2 3 2 3 4 5 4 5 3 4 1 2 3 4 3 4 5 6 2 1 4 3 2 3 4 5 4 5 3 2 3 2 3 4 3 4 5 6 2 3 2 ...` Truncated

Test 8

Group: 2, 3

Verdict: ACCEPTED

input
`25` view save

correct output
`0 3 2 3 2 3 4 5 4 5 6 7 6 7 8 ...` view save

user output
`0 3 2 3 2 3 4 5 4 5 6 7 6 7 8 ...` Truncated

Test 9

Group: 2, 3

Verdict: ACCEPTED

input
`49` view save

correct output
`0 3 2 3 2 3 4 5 4 5 6 7 6 7 8 ...` view save

user output
`0 3 2 3 2 3 4 5 4 5 6 7 6 7 8 ...` Truncated

Test 10

Group: 2, 3

Verdict: ACCEPTED

input
`50` view save

correct output
`0 3 2 3 2 3 4 5 4 5 6 7 6 7 8 ...` view save

user output
`0 3 2 3 2 3 4 5 4 5 6 7 6 7 8 ...` Truncated

Test 11

Group: 3

Verdict: ACCEPTED

input
`75` view save

correct output
`0 3 2 3 2 3 4 5 4 5 6 7 6 7 8 ...` view save

user output
`0 3 2 3 2 3 4 5 4 5 6 7 6 7 8 ...` Truncated

Test 12

Group: 3

Verdict: ACCEPTED

input
`99` view save

correct output
`0 3 2 3 2 3 4 5 4 5 6 7 6 7 8 ...` view save

user output
`0 3 2 3 2 3 4 5 4 5 6 7 6 7 8 ...` Truncated

Test 13

Group: 3

Verdict: ACCEPTED

input
`100` view save

correct output
`0 3 2 3 2 3 4 5 4 5 6 7 6 7 8 ...` view save

user output
`0 3 2 3 2 3 4 5 4 5 6 7 6 7 8 ...` Truncated

Datatähti 2021 alku

Ratsun reitit

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Tasks

Submissions (Juksu)