CSES - Putka Open 2020 – 1/5 - Results
Submission details
Task:Ruudukko
Sender:kluopaja
Submission time:2020-09-06 13:05:51 +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
#13ACCEPTED0.04 s3details
#14ACCEPTED0.04 s3details
#15ACCEPTED0.04 s3details
#16ACCEPTED0.04 s3details
#17ACCEPTED0.04 s3details
#18ACCEPTED0.04 s3details

Code

#include <bits/stdc++.h>
using namespace std;
int dp[1000][1000][2];
int main() {
    int n;
    cin>>n;
    vector<vector<int> > v(n, vector<int>(n));
    for(int i = 0; i < n; ++i) {
        string s;
        cin>>s;
        for(int j = 0; j < n; ++j) {
            v[i][j] = s[j] == 'o' ? 1 : 0;
        }
    }
    dp[n-1][n-1][0] = 0;
    dp[n-1][n-1][1] = 0;
    for(int i = n-1; i >= 0; --i) {
        for(int j = n-1; j >= 0; --j) {
            if(i == n-1 && j == n-1) continue;
            int mi = 1e9;
            int ma = 0;
            if(i < n-1) {
                mi = min(mi, dp[i+1][j][0]);
                ma = max(ma, dp[i+1][j][1]);
            }
            if(j < n-1) {
                mi = min(mi, dp[i][j+1][0]);
                ma = max(ma, dp[i][j+1][1]);
            }
            dp[i][j][0] = mi + v[i][j];
            dp[i][j][1] = ma + v[i][j];
        }
    }
    cout<<(dp[0][0][1]-dp[0][0][0]+1)<<endl;
}

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