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HIIT Open 2018

Start:2018-05-26 11:00:00
End:2018-05-26 16:00:00
 

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CSES - HIIT Open 2018 - Results
History
2018-05-26 11:45:40
2018-05-26 11:18:29
Task:Grid
Sender:Wave of Technology
Submission time:2018-05-26 11:18:29
Language:C++
Status:READY
Result:ACCEPTED

Test results

testverdicttime (s)
#1ACCEPTED0.01 / 1.00details
#2ACCEPTED0.01 / 1.00details
#3ACCEPTED0.01 / 1.00details
#4ACCEPTED0.01 / 1.00details
#5ACCEPTED0.01 / 1.00details
#6ACCEPTED0.01 / 1.00details
#7ACCEPTED0.01 / 1.00details
#8ACCEPTED0.01 / 1.00details
#9ACCEPTED0.01 / 1.00details
#10ACCEPTED0.01 / 1.00details
#11ACCEPTED0.01 / 1.00details
#12ACCEPTED0.01 / 1.00details
#13ACCEPTED0.01 / 1.00details
#14ACCEPTED0.01 / 1.00details
#15ACCEPTED0.01 / 1.00details
#16ACCEPTED0.01 / 1.00details
#17ACCEPTED0.04 / 1.00details
#18ACCEPTED0.05 / 1.00details
#19ACCEPTED0.04 / 1.00details
#20ACCEPTED0.04 / 1.00details
#21ACCEPTED0.04 / 1.00details
#22ACCEPTED0.04 / 1.00details

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
view   save

correct output
0
view   save

user output
0
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Test 2

Verdict: ACCEPTED

input
1
1
view   save

correct output
1
view   save

user output
1
view   save

Test 3

Verdict: ACCEPTED

input
2
00
00
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correct output
0
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user output
0
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Test 4

Verdict: ACCEPTED

input
2
10
00
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correct output
-1
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user output
-1
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Test 5

Verdict: ACCEPTED

input
2
11
00
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correct output
1
view   save

user output
1
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Test 6

Verdict: ACCEPTED

input
2
11
01
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correct output
2
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user output
2
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Test 7

Verdict: ACCEPTED

input
2
11
11
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correct output
2
view   save

user output
2
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Test 8

Verdict: ACCEPTED

input
3
000
000
000
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correct output
0
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user output
0
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Test 9

Verdict: ACCEPTED

input
3
100
100
100
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correct output
1
view   save

user output
1
view   save

Test 10

Verdict: ACCEPTED

input
3
101
101
101
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correct output
2
view   save

user output
2
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Test 11

Verdict: ACCEPTED

input
3
111
101
101
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correct output
3
view   save

user output
3
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Test 12

Verdict: ACCEPTED

input
3
111
000
000
view   save

correct output
1
view   save

user output
1
view   save

Test 13

Verdict: ACCEPTED

input
3
111
000
111
view   save

correct output
2
view   save

user output
2
view   save

Test 14

Verdict: ACCEPTED

input
3
111
100
111
view   save

correct output
3
view   save

user output
3
view   save

Test 15

Verdict: ACCEPTED

input
3
111
101
111
view   save

correct output
4
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user output
4
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Test 16

Verdict: ACCEPTED

input
3
111
111
111
view   save

correct output
3
view   save

user output
3
view   save

Test 17

Verdict: ACCEPTED

input
1000
000000000000000000000000000000...
view   save

correct output
0
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user output
0
view   save

Test 18

Verdict: ACCEPTED

input
1000
000000000000000000000000000000...
view   save

correct output
10
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user output
10
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Test 19

Verdict: ACCEPTED

input
1000
100000000000000000100000000000...
view   save

correct output
41
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user output
41
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Test 20

Verdict: ACCEPTED

input
1000
000000100000000001000000010000...
view   save

correct output
192
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user output
192
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Test 21

Verdict: ACCEPTED

input
1000
111111111111111111111111111111...
view   save

correct output
999
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user output
999
view   save

Test 22

Verdict: ACCEPTED

input
1000
111111111111111111111111111111...
view   save

correct output
1000
view   save

user output
1000
view   save