CSES - HIIT Open 2018 - Results
Submission details
Task:Grid
Sender:El Numero Uno
Submission time:2018-05-26 12:46:14 +0300
Language:C++
Status:READY
Result:
Test results
testverdicttime
#1ACCEPTED0.01 sdetails
#2ACCEPTED0.01 sdetails
#3ACCEPTED0.01 sdetails
#4ACCEPTED0.01 sdetails
#50.01 sdetails
#60.01 sdetails
#7ACCEPTED0.01 sdetails
#8ACCEPTED0.01 sdetails
#9ACCEPTED0.01 sdetails
#10ACCEPTED0.01 sdetails
#110.02 sdetails
#120.01 sdetails
#130.01 sdetails
#140.01 sdetails
#150.01 sdetails
#16ACCEPTED0.01 sdetails
#17ACCEPTED0.06 sdetails
#18ACCEPTED0.06 sdetails
#19ACCEPTED0.06 sdetails
#20ACCEPTED0.06 sdetails
#210.01 sdetails
#22ACCEPTED0.06 sdetails

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:30:13: warning: 'isRow' may be used uninitialized in this function [-Wmaybe-uninitialized]
     rows[0] = isRow;
     ~~~~~~~~^~~~~~~

Code

#include <iostream>
#include "stdio.h"
#include <array>

using namespace std;

int main()
{
    int n;
    cin >> n;
    char c;
    bool v, cols[n + 2], rows[n + 2];
    //array<bool, n> cols;
    //array<bool, n> rows;
    bool row;
    bool isRow;
    for (int x = 0; x < n; x++) {
        cin >> c;
        v = (c == 49);
        cols[x] = v;
        if (x == 0) {
            row = v;
            isRow = row;
        } else {
            if (v != row) {
                isRow = 0;
            }
        }
    }
    rows[0] = isRow;
    for (int y = 1; y < n; y++) {
        cin >> c;
        bool row = (c == 49);
        bool isRow = row;
        bool colMatch = (row == cols[0]);
        for (int x = 1; x < n; x++) {
            cin >> c;
            v = (c == 49);
            if (v != row) {
                isRow = 0;
            }
            if (v != cols[x]) {
                colMatch = 0;
            }
        }
        if (!colMatch && !isRow) {
            printf("-1\n");
            return 0;
        }
        rows[y] = isRow;
    }
    int sx = 0, sy = 0;
    for (int x = 0; x < n; x++) {
        sx += cols[x];
        sy += rows[x];
    }
    if (sx == n || sy == n) {
        printf("%i\n", n);
    } else {
        printf("%i\n", sx + sy);
    }
    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:

input
2
11
00

correct output
1

user output
-1

Test 6

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

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:

input
3
111
101
101

correct output
3

user output
-1

Test 12

Verdict:

input
3
111
000
000

correct output
1

user output
-1

Test 13

Verdict:

input
3
111
000
111

correct output
2

user output
-1

Test 14

Verdict:

input
3
111
100
111

correct output
3

user output
-1

Test 15

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: 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:

input
1000
111111111111111111111111111111...

correct output
999

user output
-1

Test 22

Verdict: ACCEPTED

input
1000
111111111111111111111111111111...

correct output
1000

user output
1000