#include <bits/stdc++.h>
using namespace std;
using lint = long long;
using pi = array<lint, 2>;
#define sz(v) ((int)(v).size())
#define all(v) (v).begin(), (v).end()
#define cr(v, n) (v).clear(), (v).resize(n);
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
int n;
cin >> n;
auto query = [&](vector<pi> positions) {
vector<string> grids(n, string(n, '0'));
for (auto &[x, y] : positions)
grids[x][y] = '1';
cout << "?" << endl;
for (auto &s : grids)
cout << s << endl;
int z;
cin >> z;
return z;
};
int val1 = query({{0, 0}, {0, 1}});
int fstpos = 0; // - = 0, | = 1
if (val1 == n) {
fstpos = 0;
} else if (val1 == 2 * n) {
fstpos = 1;
} else {
assert(val1 == 2 * n - 1);
int val2 = query({{0, 1}, {0, 2}});
if (val2 == n) {
fstpos = 1;
} else if (val2 == 2 * n) {
fstpos = 0;
} else {
assert(val2 == 2 * n - 1);
int val3 = query({{0, 0}, {0, 1}, {0, 2}});
if (val3 == 2 * n - 1)
fstpos = 0;
else if (val3 = 3 * n - 2)
fstpos = 1;
else
assert(0);
}
}
auto querySingle = [&](int x, int y) {
if (x == 0 && y == 0)
return fstpos;
int val = query({{0, 0}, {x, y}});
if (val == 2 * n - 1)
return (fstpos ^ 1);
else
return fstpos;
};
vector<int> rowPop(n), colPop(n);
vector<int> r1(n), c1(n);
iota(all(r1), 0);
iota(all(c1), 0);
shuffle(all(r1), mt19937_64(0x1557));
shuffle(all(c1), mt19937_64(0x1557));
int r = 0, c = 0;
while (r < n && c < n) {
if (querySingle(r1[r], c1[c]) == 0) {
rowPop[r1[r++]] = c1[c];
} else {
colPop[c1[c++]] = r1[r];
}
}
if (r == n) {
vector<string> grids(n, string(n, '0'));
for (int i = 0; i < n; i++)
grids[i][rowPop[i]] = '1';
cout << "!" << endl;
for (auto &s : grids)
cout << s << endl;
} else {
vector<string> grids(n, string(n, '0'));
for (int i = 0; i < n; i++)
grids[colPop[i]][i] = '1';
cout << "!" << endl;
for (auto &s : grids)
cout << s << endl;
}
}
Compilation message
Main.cpp: In function 'int main()':
Main.cpp:44:18: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
44 | else if (val3 = 3 * n - 2)
| ~~~~~^~~~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Correct |
0 ms |
344 KB |
Output is correct |
| 4 |
Correct |
0 ms |
344 KB |
Output is correct |
| 5 |
Correct |
0 ms |
344 KB |
Output is correct |
| 6 |
Correct |
0 ms |
344 KB |
Output is correct |
| 7 |
Correct |
0 ms |
344 KB |
Output is correct |
| 8 |
Correct |
0 ms |
344 KB |
Output is correct |
| 9 |
Correct |
0 ms |
344 KB |
Output is correct |
| 10 |
Correct |
0 ms |
344 KB |
Output is correct |
| 11 |
Correct |
0 ms |
344 KB |
Output is correct |
| 12 |
Correct |
0 ms |
344 KB |
Output is correct |
| 13 |
Correct |
0 ms |
344 KB |
Output is correct |
| 14 |
Correct |
0 ms |
344 KB |
Output is correct |
| 15 |
Correct |
0 ms |
344 KB |
Output is correct |
| 16 |
Correct |
0 ms |
344 KB |
Output is correct |
| 17 |
Correct |
0 ms |
344 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Correct |
0 ms |
344 KB |
Output is correct |
| 4 |
Correct |
1 ms |
344 KB |
Output is correct |
| 5 |
Correct |
0 ms |
344 KB |
Output is correct |
| 6 |
Correct |
1 ms |
344 KB |
Output is correct |
| 7 |
Correct |
0 ms |
344 KB |
Output is correct |
| 8 |
Correct |
0 ms |
344 KB |
Output is correct |
| 9 |
Correct |
0 ms |
344 KB |
Output is correct |
| 10 |
Correct |
0 ms |
344 KB |
Output is correct |
| 11 |
Correct |
0 ms |
344 KB |
Output is correct |
| 12 |
Correct |
0 ms |
344 KB |
Output is correct |
| 13 |
Correct |
0 ms |
344 KB |
Output is correct |
| 14 |
Correct |
0 ms |
344 KB |
Output is correct |
| 15 |
Correct |
0 ms |
344 KB |
Output is correct |
| 16 |
Correct |
0 ms |
344 KB |
Output is correct |
| 17 |
Correct |
0 ms |
344 KB |
Output is correct |
| 18 |
Correct |
0 ms |
344 KB |
Output is correct |
| 19 |
Correct |
0 ms |
344 KB |
Output is correct |
| 20 |
Correct |
1 ms |
344 KB |
Output is correct |
| 21 |
Correct |
0 ms |
344 KB |
Output is correct |
| 22 |
Correct |
0 ms |
344 KB |
Output is correct |
| 23 |
Correct |
0 ms |
344 KB |
Output is correct |
| 24 |
Correct |
0 ms |
344 KB |
Output is correct |
| 25 |
Correct |
1 ms |
344 KB |
Output is correct |
| 26 |
Correct |
0 ms |
344 KB |
Output is correct |
| 27 |
Correct |
1 ms |
344 KB |
Output is correct |
| 28 |
Correct |
0 ms |
344 KB |
Output is correct |
| 29 |
Correct |
0 ms |
344 KB |
Output is correct |
| 30 |
Correct |
0 ms |
344 KB |
Output is correct |
| 31 |
Correct |
0 ms |
344 KB |
Output is correct |
| 32 |
Correct |
0 ms |
344 KB |
Output is correct |
| 33 |
Correct |
0 ms |
344 KB |
Output is correct |
| 34 |
Correct |
0 ms |
344 KB |
Output is correct |
| 35 |
Correct |
0 ms |
344 KB |
Output is correct |
| 36 |
Correct |
1 ms |
344 KB |
Output is correct |
| 37 |
Correct |
0 ms |
344 KB |
Output is correct |
| 38 |
Correct |
0 ms |
344 KB |
Output is correct |
| 39 |
Correct |
0 ms |
344 KB |
Output is correct |
| 40 |
Correct |
0 ms |
344 KB |
Output is correct |
| 41 |
Correct |
0 ms |
344 KB |
Output is correct |
| 42 |
Correct |
0 ms |
344 KB |
Output is correct |
| 43 |
Correct |
0 ms |
344 KB |
Output is correct |
| 44 |
Correct |
0 ms |
344 KB |
Output is correct |
| 45 |
Correct |
0 ms |
344 KB |
Output is correct |
| 46 |
Correct |
0 ms |
344 KB |
Output is correct |
| 47 |
Correct |
0 ms |
344 KB |
Output is correct |
| 48 |
Correct |
0 ms |
344 KB |
Output is correct |
| 49 |
Correct |
0 ms |
344 KB |
Output is correct |
| 50 |
Correct |
0 ms |
344 KB |
Output is correct |
| 51 |
Correct |
0 ms |
344 KB |
Output is correct |
| 52 |
Correct |
0 ms |
344 KB |
Output is correct |
| 53 |
Correct |
0 ms |
344 KB |
Output is correct |
| 54 |
Correct |
0 ms |
344 KB |
Output is correct |
| 55 |
Correct |
0 ms |
344 KB |
Output is correct |
| 56 |
Correct |
0 ms |
344 KB |
Output is correct |
| 57 |
Correct |
0 ms |
344 KB |
Output is correct |
| 58 |
Correct |
1 ms |
344 KB |
Output is correct |
| 59 |
Correct |
0 ms |
344 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Correct |
1 ms |
344 KB |
Output is correct |
| 4 |
Correct |
0 ms |
344 KB |
Output is correct |
| 5 |
Correct |
0 ms |
344 KB |
Output is correct |
| 6 |
Correct |
0 ms |
344 KB |
Output is correct |
| 7 |
Correct |
1 ms |
344 KB |
Output is correct |
| 8 |
Correct |
0 ms |
344 KB |
Output is correct |
| 9 |
Correct |
0 ms |
344 KB |
Output is correct |
| 10 |
Correct |
1 ms |
344 KB |
Output is correct |
| 11 |
Correct |
0 ms |
344 KB |
Output is correct |
| 12 |
Correct |
0 ms |
344 KB |
Output is correct |
| 13 |
Correct |
0 ms |
344 KB |
Output is correct |
| 14 |
Correct |
0 ms |
344 KB |
Output is correct |
| 15 |
Correct |
0 ms |
344 KB |
Output is correct |
| 16 |
Correct |
0 ms |
344 KB |
Output is correct |
| 17 |
Correct |
0 ms |
344 KB |
Output is correct |
| 18 |
Correct |
0 ms |
344 KB |
Output is correct |
| 19 |
Correct |
0 ms |
344 KB |
Output is correct |
| 20 |
Correct |
0 ms |
344 KB |
Output is correct |
| 21 |
Correct |
0 ms |
344 KB |
Output is correct |
| 22 |
Correct |
0 ms |
344 KB |
Output is correct |
| 23 |
Correct |
1 ms |
344 KB |
Output is correct |
| 24 |
Correct |
0 ms |
344 KB |
Output is correct |
| 25 |
Correct |
1 ms |
344 KB |
Output is correct |
| 26 |
Correct |
1 ms |
344 KB |
Output is correct |
| 27 |
Correct |
0 ms |
344 KB |
Output is correct |
| 28 |
Correct |
1 ms |
344 KB |
Output is correct |
| 29 |
Correct |
0 ms |
344 KB |
Output is correct |
| 30 |
Correct |
1 ms |
344 KB |
Output is correct |
| 31 |
Correct |
0 ms |
344 KB |
Output is correct |
| 32 |
Correct |
0 ms |
344 KB |
Output is correct |
| 33 |
Correct |
1 ms |
344 KB |
Output is correct |
| 34 |
Correct |
0 ms |
344 KB |
Output is correct |
| 35 |
Correct |
0 ms |
344 KB |
Output is correct |
| 36 |
Correct |
1 ms |
344 KB |
Output is correct |
| 37 |
Correct |
0 ms |
344 KB |
Output is correct |
| 38 |
Correct |
1 ms |
344 KB |
Output is correct |
| 39 |
Correct |
0 ms |
344 KB |
Output is correct |
| 40 |
Correct |
0 ms |
344 KB |
Output is correct |
| 41 |
Correct |
1 ms |
344 KB |
Output is correct |
| 42 |
Correct |
0 ms |
344 KB |
Output is correct |
| 43 |
Correct |
0 ms |
344 KB |
Output is correct |
| 44 |
Correct |
0 ms |
344 KB |
Output is correct |
| 45 |
Correct |
1 ms |
344 KB |
Output is correct |
| 46 |
Correct |
0 ms |
344 KB |
Output is correct |
| 47 |
Correct |
1 ms |
344 KB |
Output is correct |
| 48 |
Correct |
0 ms |
344 KB |
Output is correct |
| 49 |
Correct |
0 ms |
344 KB |
Output is correct |
| 50 |
Correct |
0 ms |
344 KB |
Output is correct |
| 51 |
Correct |
0 ms |
344 KB |
Output is correct |
| 52 |
Correct |
1 ms |
344 KB |
Output is correct |
| 53 |
Correct |
0 ms |
344 KB |
Output is correct |
| 54 |
Correct |
0 ms |
344 KB |
Output is correct |
| 55 |
Correct |
0 ms |
344 KB |
Output is correct |
| 56 |
Correct |
0 ms |
344 KB |
Output is correct |
| 57 |
Correct |
1 ms |
344 KB |
Output is correct |
| 58 |
Correct |
0 ms |
344 KB |
Output is correct |
| 59 |
Partially correct |
3 ms |
464 KB |
Partially correct |
| 60 |
Partially correct |
3 ms |
528 KB |
Partially correct |
| 61 |
Partially correct |
3 ms |
464 KB |
Partially correct |
| 62 |
Partially correct |
5 ms |
464 KB |
Partially correct |
| 63 |
Partially correct |
4 ms |
464 KB |
Partially correct |
| 64 |
Partially correct |
5 ms |
464 KB |
Partially correct |
| 65 |
Partially correct |
5 ms |
468 KB |
Partially correct |
| 66 |
Partially correct |
6 ms |
472 KB |
Partially correct |
| 67 |
Partially correct |
5 ms |
472 KB |
Partially correct |
| 68 |
Partially correct |
8 ms |
720 KB |
Partially correct |
| 69 |
Partially correct |
4 ms |
464 KB |
Partially correct |
| 70 |
Partially correct |
4 ms |
468 KB |
Partially correct |
| 71 |
Partially correct |
3 ms |
472 KB |
Partially correct |
| 72 |
Partially correct |
4 ms |
464 KB |
Partially correct |
| 73 |
Partially correct |
3 ms |
464 KB |
Partially correct |
| 74 |
Partially correct |
3 ms |
468 KB |
Partially correct |
| 75 |
Partially correct |
7 ms |
468 KB |
Partially correct |
| 76 |
Partially correct |
5 ms |
464 KB |
Partially correct |
| 77 |
Partially correct |
5 ms |
468 KB |
Partially correct |
| 78 |
Partially correct |
5 ms |
604 KB |
Partially correct |
| 79 |
Partially correct |
5 ms |
468 KB |
Partially correct |
| 80 |
Partially correct |
6 ms |
472 KB |
Partially correct |
| 81 |
Partially correct |
6 ms |
468 KB |
Partially correct |
| 82 |
Partially correct |
7 ms |
464 KB |
Partially correct |
| 83 |
Partially correct |
8 ms |
1224 KB |
Partially correct |
| 84 |
Partially correct |
9 ms |
468 KB |
Partially correct |
| 85 |
Partially correct |
5 ms |
468 KB |
Partially correct |
| 86 |
Partially correct |
7 ms |
720 KB |
Partially correct |
| 87 |
Partially correct |
8 ms |
472 KB |
Partially correct |
| 88 |
Partially correct |
3 ms |
468 KB |
Partially correct |
| 89 |
Partially correct |
3 ms |
660 KB |
Partially correct |
| 90 |
Partially correct |
3 ms |
468 KB |
Partially correct |
| 91 |
Partially correct |
4 ms |
468 KB |
Partially correct |
| 92 |
Partially correct |
9 ms |
468 KB |
Partially correct |
| 93 |
Partially correct |
5 ms |
468 KB |
Partially correct |
| 94 |
Partially correct |
5 ms |
464 KB |
Partially correct |
| 95 |
Partially correct |
8 ms |
464 KB |
Partially correct |
| 96 |
Partially correct |
6 ms |
468 KB |
Partially correct |
| 97 |
Correct |
0 ms |
344 KB |
Output is correct |
