CSES - Datatähti 2016 alku - Results
Submission details
Task:Tontti
Sender:ollpu
Submission time:2016-02-15 23:17:30
Language:C++
Status:READY
Result:47
Feedback
groupverdictscore
#1ACCEPTED14
#2ACCEPTED33
#30
Test results
testverdicttimegroup
#1ACCEPTED0.05 s1details
#2ACCEPTED0.06 s1details
#3ACCEPTED0.05 s1details
#4ACCEPTED0.06 s1details
#5ACCEPTED0.05 s1details
#6ACCEPTED0.10 s2details
#7ACCEPTED0.08 s2details
#8ACCEPTED0.11 s2details
#9ACCEPTED0.10 s2details
#10ACCEPTED0.08 s2details
#11--3details
#12--3details
#13--3details
#14--3details
#15--3details

Code

#include <iostream>
#include <string>
using namespace std;

int t[2000][2000];

int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  
  long n, m, x;
  cin >> n >> m >> x;
  for (long i = 0; i < n; ++i) {
    string r;
    cin >> r;
    int sum = 0;
    for (long j = 0; j < m; ++j) {
      sum += r[j] == '*';
      if (i > 0) {
        sum += t[i-1][j];
        if (j > 0) sum -= t[i-1][j-1];
      }
      t[i][j] = sum;
    }
  }
  long r = 0;
  for (long i = 0; i < n; ++i) {
    for (long j = 0; j < m; ++j) {
      for (long s = 0; s < min(n-i, m-j); ++s) {
        long v = t[i+s][j+s];
        if (i > 0) v -= t[i-1][j+s];
        if (j > 0) v -= t[i+s][j-1];
        if (i > 0 && j > 0) v += t[i-1][j-1];
        if (v == x) r++;
        else if (v > x) break;
      }
    }
  }
  cout << r;
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
10 10 1
......*...
.......*..
*..*....*.
*....*....
...

correct output
94

user output
94

Test 2

Group: 1

Verdict: ACCEPTED

input
10 10 5
**********
**********
**********
**********
...

correct output
0

user output
0

Test 3

Group: 1

Verdict: ACCEPTED

input
10 10 10
**...*...*
*..*.**.*.
...**.*..*
*...**.*..
...

correct output
4

user output
4

Test 4

Group: 1

Verdict: ACCEPTED

input
10 10 5
****......
*.*.**..**
....*.*..*
...*.***..
...

correct output
16

user output
16

Test 5

Group: 1

Verdict: ACCEPTED

input
10 10 2
**.***..*.
...*.*....
.***.*...*
***.***..*
...

correct output
30

user output
30

Test 6

Group: 2

Verdict: ACCEPTED

input
500 500 1
.................................

correct output
9552040

user output
9552040

Test 7

Group: 2

Verdict: ACCEPTED

input
500 500 5
.................................

correct output
1536063

user output
1536063

Test 8

Group: 2

Verdict: ACCEPTED

input
500 500 25000
**...*...**..*.*..*.**.*..*.*....

correct output
288

user output
288

Test 9

Group: 2

Verdict: ACCEPTED

input
500 500 12500
**.**.*..*...*.**...*.***........

correct output
786

user output
786

Test 10

Group: 2

Verdict: ACCEPTED

input
500 500 5000
.*.*.**..*.*.**.**..*..**...*....

correct output
1763

user output
1763

Test 11

Group: 3

Verdict:

input
2000 2000 1
.................................

correct output
489611392

user output
(empty)

Test 12

Group: 3

Verdict:

input
2000 2000 5
.................................

correct output
120725884

user output
(empty)

Test 13

Group: 3

Verdict:

input
2000 2000 400000
..*..**.**.**.*.***...**.*..**...

correct output
1849

user output
(empty)

Test 14

Group: 3

Verdict:

input
2000 2000 200000
***.*....*.*..*....**..*..*.*....

correct output
2665

user output
(empty)

Test 15

Group: 3

Verdict:

input
2000 2000 80000
**.**...*.***.**....**.*....*....

correct output
5587

user output
(empty)