CSES - Putka Open 2020 – 1/5

Submission details
Task:	Ruudukko
Sender:	AtskaFin
Submission time:	2020-09-10 18:16:54 +0300
Language:	C++ (C++11)
Status:	READY
Result:	100

Feedback
group	verdict	score
#1	ACCEPTED	16
#2	ACCEPTED	30
#3	ACCEPTED	54

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	2, 3	details
#8	ACCEPTED	0.01 s	2, 3	details
#9	ACCEPTED	0.01 s	2, 3	details
#10	ACCEPTED	0.01 s	2, 3	details
#11	ACCEPTED	0.01 s	2, 3	details
#12	ACCEPTED	0.01 s	2, 3	details
#13	ACCEPTED	0.04 s	3	details
#14	ACCEPTED	0.04 s	3	details
#15	ACCEPTED	0.05 s	3	details
#16	ACCEPTED	0.05 s	3	details
#17	ACCEPTED	0.04 s	3	details
#18	ACCEPTED	0.04 s	3	details

Code

#include <iostream>
#include <string>
#include <algorithm>

using namespace std;

int mins[1000][1000];
int maxs[1000][1000];
string input[1000];
int n;

void search(int y, int x) {
  if (mins[y][x] > -1 || x == n || y == n) return;

  search(y, x + 1);
  search(y + 1, x);

  if (y == n - 1 && x == n - 1) {
    mins[y][x] = 0;
    maxs[y][x] = 0;
  } else if (y == n - 1) {
    mins[y][x] = mins[y][x + 1];
    maxs[y][x] = maxs[y][x + 1];
  } else if (x == n - 1) {
    mins[y][x] = mins[y + 1][x];
    maxs[y][x] = maxs[y + 1][x];
  } else {
    mins[y][x] = min(mins[y + 1][x], mins[y][x + 1]);
    maxs[y][x] = max(maxs[y + 1][x], maxs[y][x + 1]);
  }

  if (input[y][x] == 'o') {
    mins[y][x]++;
    maxs[y][x]++;
  }
}

int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  
  cin >> n;

  for (int i = 0; i < n; i++) {
    for (int j = 0; j < n; j++) {
      mins[i][j] = -1;
    }
  }

  for (int i = 0; i < n; i++) {
    cin >> input[i];
  }

  search(0, 0);

  cout << maxs[0][0] - mins[0][0] + 1 << "\n";
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
`10 .......... .......... .......... .......... ...` view save

correct output
`1` view save

user output
`1` view save

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
`10 o.o....... .......... .o...o.oo. ..o...o.oo ...` view save

correct output
`9` view save

user output
`9` view save

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
`10 o......o.. oo.oo..... oooo....oo o.......oo ...` view save

correct output
`14` view save

user output
`14` view save

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

input
`10 ..ooooo.oo .ooo.o..oo .....ooo.o ooo.ooo.oo ...` view save

correct output
`12` view save

user output
`12` view save

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

input
`10 oooooooooo ooo....ooo .oo.oo.ooo oooooooooo ...` view save

correct output
`10` view save

user output
`10` view save

Test 6

Group: 1, 2, 3

Verdict: ACCEPTED

input
`10 oooooooooo oooooooooo oooooooooo oooooooooo ...` view save

correct output
`1` view save

user output
`1` view save

Test 7

Group: 2, 3

Verdict: ACCEPTED

input
`100 .................................` view save

correct output
`1` view save

user output
`1` view save

Test 8

Group: 2, 3

Verdict: ACCEPTED

input
`100 .........o.....o.........o..o....` view save

correct output
`114` view save

user output
`114` view save

Test 9

Group: 2, 3

Verdict: ACCEPTED

input
`100 oo..oo.oo..o...o..o.o..o.........` view save

correct output
`151` view save

user output
`151` view save

Test 10

Group: 2, 3

Verdict: ACCEPTED

input
`100 o..o.ooo..oo.o.o.o..o.o..o..oo...` view save

correct output
`143` view save

user output
`143` view save

Test 11

Group: 2, 3

Verdict: ACCEPTED

input
`100 oo..oooooooooooo.oooo.o.o.oooo...` view save

correct output
`115` view save

user output
`115` view save

Test 12

Group: 2, 3

Verdict: ACCEPTED

input
`100 oooooooooooooooooooooooooooooo...` view save

correct output
`1` view save

user output
`1` view save

Test 13

Group: 3

Verdict: ACCEPTED

input
`1000 .................................` view save

correct output
`1` view save

user output
`1` view save

Test 14

Group: 3

Verdict: ACCEPTED

input
`1000 o..........o...o...o...o.........` view save

correct output
`1121` view save

user output
`1121` view save

Test 15

Group: 3

Verdict: ACCEPTED

input
`1000 .o.............o....o.o......o...` view save

correct output
`1583` view save

user output
`1583` view save

Test 16

Group: 3

Verdict: ACCEPTED

input
`1000 oooooo.oooooo.....oooo..o...o....` view save

correct output
`1574` view save

user output
`1574` view save

Test 17

Group: 3

Verdict: ACCEPTED

input
`1000 ooooo.oo.oooooooooo...o...oo.....` view save

correct output
`1147` view save

user output
`1147` view save

Test 18

Group: 3

Verdict: ACCEPTED

input
`1000 oooooooooooooooooooooooooooooo...` view save

correct output
`1` view save

user output
`1` view save

Putka Open 2020 – 1/5

Ruudukko

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

Test 14

Test 15

Test 16

Test 17

Test 18

Tasks

Submissions (AtskaFin)