CSES - Putka Open 2020 – 1/5 - Results
Submission details
Task:Ruudukko
Sender:jubidubi
Submission time:2020-09-06 10:36:01 +0300
Language:C++ (C++11)
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED16
#2ACCEPTED30
#3ACCEPTED54
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1, 2, 3details
#2ACCEPTED0.01 s1, 2, 3details
#3ACCEPTED0.01 s1, 2, 3details
#4ACCEPTED0.01 s1, 2, 3details
#5ACCEPTED0.01 s1, 2, 3details
#6ACCEPTED0.01 s1, 2, 3details
#7ACCEPTED0.01 s2, 3details
#8ACCEPTED0.01 s2, 3details
#9ACCEPTED0.01 s2, 3details
#10ACCEPTED0.01 s2, 3details
#11ACCEPTED0.01 s2, 3details
#12ACCEPTED0.01 s2, 3details
#13ACCEPTED0.05 s3details
#14ACCEPTED0.05 s3details
#15ACCEPTED0.05 s3details
#16ACCEPTED0.05 s3details
#17ACCEPTED0.05 s3details
#18ACCEPTED0.05 s3details

Code

#include <bits/stdc++.h>
using namespace std;
using ll = long long;

const int N = 1010;
bool coin[N][N];
ll mx[N][N];
ll mn[N][N];

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

	int n;
	cin >> n;

	for (int y = 1; y <= n; ++y) {
		for (int x = 1; x <= n; ++x) {
			char c;
			cin >> c;

			coin[x][y] = (c == 'o');
		}
	}

	for (int y = 0; y <= n; ++y) mn[0][y] = 1e9;
	for (int x = 0; x <= n; ++x) mn[x][0] = 1e9;

	mn[1][1] = coin[1][1];
	mx[1][1] = coin[1][1];
	for (int y = 1; y <= n; ++y) {
		for (int x = 1; x <= n; ++x) {
			if (y == 1 && x == 1) continue;
			mx[x][y] = max(mx[x-1][y], mx[x][y-1]) + coin[x][y];
			mn[x][y] = min(mn[x-1][y], mn[x][y-1]) + coin[x][y];
		}
	}
	cout << mx[n][n] - mn[n][n] + 1 << '\n';
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
10
..........
..........
..........
..........
...

correct output
1

user output
1

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
10
o.o.......
..........
.o...o.oo.
..o...o.oo
...

correct output
9

user output
9

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
10
o......o..
oo.oo.....
oooo....oo
o.......oo
...

correct output
14

user output
14

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

input
10
..ooooo.oo
.ooo.o..oo
.....ooo.o
ooo.ooo.oo
...

correct output
12

user output
12

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

input
10
oooooooooo
ooo....ooo
.oo.oo.ooo
oooooooooo
...

correct output
10

user output
10

Test 6

Group: 1, 2, 3

Verdict: ACCEPTED

input
10
oooooooooo
oooooooooo
oooooooooo
oooooooooo
...

correct output
1

user output
1

Test 7

Group: 2, 3

Verdict: ACCEPTED

input
100
.................................

correct output
1

user output
1

Test 8

Group: 2, 3

Verdict: ACCEPTED

input
100
.........o.....o.........o..o....

correct output
114

user output
114

Test 9

Group: 2, 3

Verdict: ACCEPTED

input
100
oo..oo.oo..o...o..o.o..o.........

correct output
151

user output
151

Test 10

Group: 2, 3

Verdict: ACCEPTED

input
100
o..o.ooo..oo.o.o.o..o.o..o..oo...

correct output
143

user output
143

Test 11

Group: 2, 3

Verdict: ACCEPTED

input
100
oo..oooooooooooo.oooo.o.o.oooo...

correct output
115

user output
115

Test 12

Group: 2, 3

Verdict: ACCEPTED

input
100
oooooooooooooooooooooooooooooo...

correct output
1

user output
1

Test 13

Group: 3

Verdict: ACCEPTED

input
1000
.................................

correct output
1

user output
1

Test 14

Group: 3

Verdict: ACCEPTED

input
1000
o..........o...o...o...o.........

correct output
1121

user output
1121

Test 15

Group: 3

Verdict: ACCEPTED

input
1000
.o.............o....o.o......o...

correct output
1583

user output
1583

Test 16

Group: 3

Verdict: ACCEPTED

input
1000
oooooo.oooooo.....oooo..o...o....

correct output
1574

user output
1574

Test 17

Group: 3

Verdict: ACCEPTED

input
1000
ooooo.oo.oooooooooo...o...oo.....

correct output
1147

user output
1147

Test 18

Group: 3

Verdict: ACCEPTED

input
1000
oooooooooooooooooooooooooooooo...

correct output
1

user output
1