CSES - HIIT Open 2018 - Results
Submission details
Task:Grid
Sender:Tefyn virallinen maajoukkue
Submission time:2018-05-26 11:32:06
Language:C++
Status:READY
Result:ACCEPTED
Test results
testverdicttime
#1ACCEPTED0.01 sdetails
#2ACCEPTED0.02 sdetails
#3ACCEPTED0.01 sdetails
#4ACCEPTED0.01 sdetails
#5ACCEPTED0.01 sdetails
#6ACCEPTED0.02 sdetails
#7ACCEPTED0.02 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
#21ACCEPTED0.05 sdetails
#22ACCEPTED0.06 sdetails

Code

#include <bits/stdc++.h>

using namespace std;
string s[1010];
bool c[1010], r[1010];
int main(){
    int ans = 0;
    int n; cin >> n;
    vector<string> s2(n, string(n, '0'));
    for(int i = 0; i < n; ++i){
        cin >> s[i];
        bool ok = 1;
        for(int j = 0; j < n; ++j){
            ok &= (s[i][j] == '1');
        }
        r[i] = ok;
        ans+=ok;
    }  
    bool ok2 = 1;
     for(int i = 0; i < n; ++i){
        for(int j = 0; j < n; ++j){
            if((s[i][j] == '1' && r[i] != 1) || (s[i][j] == '0' && r[i] == 1))
                ok2 = false;
        }
    }  
    if(ok2){
        cout << ans << endl;
        return 0;
    }
    for(int j = 0; j < n; ++j){
         bool ok = 1;
         for(int i = 0; i < n; ++i){
            ok &= (s[i][j] == '1');
         }
         c[j] = ok;
         ans+=ok;
    }
    
    ok2 = 1;
     for(int i = 0; i < n; ++i){
        for(int j = 0; j < n; ++j){
            if((s[i][j] == '1' && (r[i] | c[j]) != 1) || (s[i][j] == '0' && (r[i] | c[j]) == 1))
                ok2 = false;
        }
    }  
    if(ok2){
        cout << ans << endl;
        return 0;
    }
    cout << "-1" << endl;
    
    return 0;
}

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