CSES - HIIT Open 2018 - Results
Test results
testverdicttime
#1ACCEPTED0.02 sdetails
#2ACCEPTED0.02 sdetails
#3ACCEPTED0.01 sdetails
#4ACCEPTED0.02 sdetails
#50.01 sdetails
#60.01 sdetails
#7ACCEPTED0.01 sdetails
#8ACCEPTED0.02 sdetails
#90.01 sdetails
#100.01 sdetails
#110.01 sdetails
#120.02 sdetails
#130.01 sdetails
#140.01 sdetails
#150.01 sdetails
#16ACCEPTED0.01 sdetails
#17ACCEPTED0.10 sdetails
#180.11 sdetails
#190.09 sdetails
#200.09 sdetails
#210.11 sdetails
#22ACCEPTED0.07 sdetails

### Code

```#include <bits/stdc++.h>

using namespace std;

int n, rdk[1010][1010], vaaka[1010], pysty[1010], ans, lsk;
char cha;

int main() {
cin >> n;
bool kaikki = false;
for(int i=0; i<n; i++) {
int cnt = 0;
for(int j=0; j<n; j++) {
cin >> cha;
rdk[j][i] = cha-'0';
if(rdk[j][i]) {
cnt++;
lsk++;
}
}
if(cnt==n)
ans++;
else if(cnt) {
kaikki = true;
ans = 0;
}

}
if(kaikki) {
if(lsk==n*n) {
cout << n;
} else
cout << -1;

exit(0);
}
if(ans<n) {
for(int i=0; i<n; i++) {
int cnt = 0;
for(int j=0; j<n; j++) {
if(rdk[i][j])
cnt++;
}
if(cnt==n)
ans++;
else if(cnt) {
cout << -1;
exit(0);
}
}
}
cout << ans;
}
```

### 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

Verdict:

input
2
11
00

correct output
1

user output
-1

Verdict:

input
2
11
01

correct output
2

user output
-1

#### 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

Verdict:

input
3
100
100
100

correct output
1

user output
-1

Verdict:

input
3
101
101
101

correct output
2

user output
-1

Verdict:

input
3
111
101
101

correct output
3

user output
-1

Verdict:

input
3
111
000
000

correct output
1

user output
-1

Verdict:

input
3
111
000
111

correct output
2

user output
-1

Verdict:

input
3
111
100
111

correct output
3

user output
-1

Verdict:

input
3
111
101
111

correct output
4

user output
-1

#### 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:

input
1000
000000000000000000000000000000...

correct output
10

user output
-1

#### Test 19

Verdict:

input
1000
100000000000000000100000000000...

correct output
41

user output
-1

#### Test 20

Verdict:

input
1000
000000100000000001000000010000...

correct output
192

user output
-1

#### Test 21

Verdict:

input
1000
111111111111111111111111111111...

correct output
999

user output
-1

#### Test 22

Verdict: ACCEPTED

input
1000
111111111111111111111111111111...

correct output
1000

user output
1000