QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #265347 | #7740. Puzzle: Question Mark | ucup-team1198# | WA | 197ms | 6708kb | C++20 | 4.7kb | 2023-11-25 17:58:34 | 2023-11-25 17:58:34 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int, int>
#define ld long double
#define all(a) (a).begin(), (a).end()
const int MAXN = 2e3 + 100;
int a[MAXN][MAXN];
int id;
void col24(int i, int j) {
a[i][j] = a[i + 1][j] = a[i][j + 1] = a[i + 1][j + 2] = id;
++id;
a[i + 1][j + 1] = a[i][j + 2] = a[i][j + 3] = a[i + 1][j + 3] = id;
++id;
}
void col42(int i, int j) {
a[i][j] = a[i][j + 1] = a[i + 1][j] = a[i + 2][j + 1] = id;
++id;
a[i + 1][j + 1] = a[i + 2][j] = a[i + 3][j] = a[i + 3][j + 1] = id;
++id;
}
void col33(int i, int j) {
a[i][j] = a[i + 1][j + 1] = a[i + 2][j] = a[i + 2][j + 1] = id;
++id;
a[i + 1][j] = a[i][j + 1] = a[i][j + 2] = a[i + 1][j + 2] = id;
++id;
}
void coli33(int i, int j) {
a[i + 1][j] = a[i + 2][j] = a[i + 1][j + 1] = a[i + 2][j + 2] = id;
++id;
a[i][j + 1] = a[i][j + 2] = a[i + 1][j + 2] = a[i + 2][j + 1] = id;
++id;
}
void collll33(int i, int j) {
a[i][j] = a[i + 1][j] = a[i][j + 1] = a[i + 2][j + 1] = id;
++id;
a[i + 2][j] = a[i + 1][j + 1] = a[i + 1][j + 2] = a[i + 2][j + 2] = id;
++id;
}
void colrrr33(int i, int j) {
a[i][j] = a[i][j + 1] = a[i + 1][j] = a[i + 1][j + 2] = id;
++id;
a[i][j + 2] = a[i + 1][j + 1] = a[i + 2][j + 1] = a[i + 2][j + 2] = id;
++id;
}
void colw1(int i, int j) {
a[i][j] = a[i][j + 1] = a[i + 1][j] = a[i + 2][j + 1] = id;
++id;
a[i + 1][j + 1] = a[i + 1][j + 2] = a[i + 2][j + 2] = a[i + 3][j + 1] = id;
++id;
}
void colw2(int i, int j) {
a[i][j] = a[i][j + 1] = a[i + 1][j] = a[i + 2][j + 1] = id;
++id;
a[i + 1][j + 1] = a[i + 2][j + 2] = a[i + 3][j + 2] = a[i + 3][j + 1] = id;
++id;
}
int sn;
void print() {
cout << id - 1 << "\n";
for (int i = 0; i < sn; ++i) {
for (int j = 0; j < sn; ++j) {
cout << a[i][j];
if (j != sn - 1) {
cout << " ";
}
}
cout << "\n";
}
}
void solve() {
int n;
cin >> n;
sn = n;
for (int i = 0; i < n; ++i) {
for (int j = 0; j < n; ++j) {
a[i][j] = 0;
}
}
id = 1;
if (n % 4 == 0) {
for (int i = 0; i < n; i += 2) {
for (int j = 0; j < n; j += 4) {
col24(i, j);
}
}
print();
return;
}
if (n % 4 == 2) {
for (int i = 0; i < n; i += 2) {
for (int j = 0; j < n - 2; j += 4) {
col24(i, j);
}
}
for (int i = 0; i < n - 2; i += 4) {
col42(i, n - 2);
}
print();
return;
}
if (n % 8 == 5 || n % 8 == 7) {
if (n % 4 == 3) {
for (int i = 0; i < n - 3; i += 4) {
col24(n - 2, i);
col42(i, n - 2);
}
coli33(n - 3, n - 3);
n -= 2;
}
if (n < 4) {
print();
return;
}
int l = 0;
int r = n;
while (r - l > 5) {
col33(l, l);
for (int i = l + 3; i + 4 <= r; i += 4) {
col24(l, i);
col42(i, l);
}
for (int i = l; i + 4 <= r; i += 4) {
col24(r - 2, i);
if (i != r - 5) {
col42(i, r - 2);
}
}
coli33(r - 5, r - 3);
l += 2;
r -= 2;
}
col33(l, l);
col24(l + 3, l);
a[l + 2][l + 2] = a[l + 1][l + 3] = a[l + 1][l + 4] = a[l + 2][l + 4] = id;
++id;
print();
return;
}
int lx = 0, rx = n, ly = 0, ry = n;
while (rx - lx > 3) {
int n = rx - lx;
if ((rx - lx) % 4 == 3) {
for (int i = 0; i < n - 3; i += 4) {
col24(lx + n - 2, ly + i);
col42(lx + i, ly + n - 2);
}
coli33(lx + n - 3, ly + n - 3);
rx -= 2;
ry -= 2;
continue;
}
col42(lx, ly);
col33(lx, ly + 2);
for (int i = ly + 5; i + 4 <= ry; i += 4) {
col24(lx, i);
}
for (int i = lx + 7; i + 2 <= rx; i += 2) {
col24(i, ly);
}
for (int i = lx + 5; i + 2 <= rx; i += 2) {
col24(i, ry - 2);
}
collll33(lx + 4, ly);
colrrr33(lx + 2, ry - 3);
colw1(lx + 3, ly + 2);
for (int i = ly + 4; i <= ry - 5; i += 2) {
colw2(lx + 2, i);
}
lx += 6;
ly += 4;
ry -= 2;
continue;
}
col33(lx, ly);
print();
}
signed main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int tst;
cin >> tst;
while (tst--) {
solve();
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3668kb
input:
2 3 4
output:
2 1 2 2 2 1 2 1 1 0 4 1 1 2 2 1 2 1 2 3 3 4 4 3 4 3 4
result:
ok Correct. (2 test cases)
Test #2:
score: -100
Wrong Answer
time: 197ms
memory: 6708kb
input:
246 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 ...
output:
2 1 0 0 0 0 0 2 1 2 2 2 1 2 1 1 0 4 1 1 2 2 1 2 1 2 3 3 4 4 3 4 3 4 5 1 2 2 0 0 2 1 2 5 5 1 1 5 0 5 3 3 4 4 0 3 4 3 4 0 8 1 1 2 2 7 7 1 2 1 2 7 8 3 3 4 4 8 7 3 4 3 4 8 8 5 5 6 6 0 0 5 6 5 6 0 0 11 7 8 8 0 0 3 3 8 7 8 11 11 3 4 7 7 11 0 11 4 3 9 9 10 10 0 4 4 9 10 9 10 0 6 6 1 1 2 2 5 5 6 1 2 1 2 5 6...
result:
wrong answer Integer parameter [name=num] equals to 2, violates the range [0, 0] (test case 1)