CSES - HIIT Open 2018 - Results
Submission details
Task:Grid
Sender:Wave of Technology
Submission time:2018-05-26 11:18:29
Language:C++
Status:READY
Result:ACCEPTED
Test results
testverdicttime
#1ACCEPTED0.01 sdetails
#2ACCEPTED0.01 sdetails
#3ACCEPTED0.01 sdetails
#4ACCEPTED0.01 sdetails
#5ACCEPTED0.01 sdetails
#6ACCEPTED0.01 sdetails
#7ACCEPTED0.01 sdetails
#8ACCEPTED0.01 sdetails
#9ACCEPTED0.01 sdetails
#10ACCEPTED0.01 sdetails
#11ACCEPTED0.01 sdetails
#12ACCEPTED0.01 sdetails
#13ACCEPTED0.01 sdetails
#14ACCEPTED0.01 sdetails
#15ACCEPTED0.01 sdetails
#16ACCEPTED0.01 sdetails
#17ACCEPTED0.04 sdetails
#18ACCEPTED0.05 sdetails
#19ACCEPTED0.04 sdetails
#20ACCEPTED0.04 sdetails
#21ACCEPTED0.04 sdetails
#22ACCEPTED0.04 sdetails

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:36:8: warning: unused variable 'valid' [-Wunused-variable]
   bool valid = true;
        ^~~~~

Code

#include <iostream>
#include <cmath>
#include <algorithm>
#include <bitset>
#include <vector>

using namespace std;

typedef long long ll;




int main() {
  ll n;
  cin >> n;

  vector<bitset<1000> > t (n);

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

  bitset<1000> rows;
  bitset<1000> cols;

  for (int i=0; i<n; i++) {
    cols[i] = true;
    rows[i] = true;
    for (int j=0; j<n; j++) {
      cols[i] = cols[i] && t[j][i];
      rows[i] = rows[i] && t[i][j];
    }
  }

  bool valid = true;
  for (int i=0; i<n; i++) {
    for (int j=0; j<n; j++) {
      if (t[i][j] != (rows[i] || cols[j])) {
	cout << -1 << endl;
	return 0;
      }
    }
  }

  ll count = rows.count() + cols.count();

  if (count == 2*n) count = n;

  cout << count << endl;
  
  
  
}

Test details

Test 1

Verdict: ACCEPTED

input
1
0

correct output
0

user output
0

Test 2

Verdict: ACCEPTED

input
1
1

correct output
1

user output
1

Test 3

Verdict: ACCEPTED

input
2
00
00

correct output
0

user output
0

Test 4

Verdict: ACCEPTED

input
2
10
00

correct output
-1

user output
-1

Test 5

Verdict: ACCEPTED

input
2
11
00

correct output
1

user output
1

Test 6

Verdict: ACCEPTED

input
2
11
01

correct output
2

user output
2

Test 7

Verdict: ACCEPTED

input
2
11
11

correct output
2

user output
2

Test 8

Verdict: ACCEPTED

input
3
000
000
000

correct output
0

user output
0

Test 9

Verdict: ACCEPTED

input
3
100
100
100

correct output
1

user output
1

Test 10

Verdict: ACCEPTED

input
3
101
101
101

correct output
2

user output
2

Test 11

Verdict: ACCEPTED

input
3
111
101
101

correct output
3

user output
3

Test 12

Verdict: ACCEPTED

input
3
111
000
000

correct output
1

user output
1

Test 13

Verdict: ACCEPTED

input
3
111
000
111

correct output
2

user output
2

Test 14

Verdict: ACCEPTED

input
3
111
100
111

correct output
3

user output
3

Test 15

Verdict: ACCEPTED

input
3
111
101
111

correct output
4

user output
4

Test 16

Verdict: ACCEPTED

input
3
111
111
111

correct output
3

user output
3

Test 17

Verdict: ACCEPTED

input
1000
000000000000000000000000000000...

correct output
0

user output
0

Test 18

Verdict: ACCEPTED

input
1000
000000000000000000000000000000...

correct output
10

user output
10

Test 19

Verdict: ACCEPTED

input
1000
100000000000000000100000000000...

correct output
41

user output
41

Test 20

Verdict: ACCEPTED

input
1000
000000100000000001000000010000...

correct output
192

user output
192

Test 21

Verdict: ACCEPTED

input
1000
111111111111111111111111111111...

correct output
999

user output
999

Test 22

Verdict: ACCEPTED

input
1000
111111111111111111111111111111...

correct output
1000

user output
1000