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QOJ
| ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
|---|---|---|---|---|---|---|---|---|---|
| #135237 | #6643. Graphs and Colors | Vengeful_Spirit# | WA | 4ms | 3492kb | C++20 | 3.7kb | 2023-08-05 13:08:52 | 2023-08-05 13:08:54 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
void ok() {
cout << "Possible\n";
return;
}
void no() {
cout << "Impossible\n";
return;
}
int cal(int x, int y, int n) {
if(x == 1 && y == 1) return 2;
if(x == 1 && y == n) return 2;
if(x == n && y == 1) return 2;
if(x == n && y == n) return 2;
if(x == 1 || x == n || y == 1 || y == n) return 3;
return 4;
}
bool check(int x, int y, int n, int m) {
int num3 = 0, num4 = 0, num2 = 0;
for(int i = 1; i <= n; i ++) for(int j = 1; j <= n; j ++) {
if((x + i) % 2 == (y + j) % 2) {
int xx = i;
int yy = j;
int z = cal(xx, yy, n);
if(z == 3) ++num3;
if(z == 4) ++num4;
if(z == 2) ++num2;
}
}
int all = 2 * n * (n - 1);
bool fd = 0;
int nn3, nn4, nn2;
// cout << all << " " << m << "\n";
// cout << num2 << " " << num3 << " " << num4 << "\n";
for(int i = 0; i <= num3; ++i) {
int xx = all - m;
if(3 * i <= xx) {
int yy = xx - 3 * i;
for(int j = 0; j <= num2; ++j) if(j * 2 <= yy){
int zz = yy - j * 2;
if(zz%4==0&&zz/4<=num4) {
fd = 1;
nn3 = i;
nn2 = j;
nn4 = zz/4;
break;
}
if(fd == 1) break;
}
}
if(fd == 1) break;
}
if(fd) {
ok();
for(int i = 1; i <= n; ++i) {
for(int j = 1; j <= n; ++j) {
if((i + x) % 2 == (j + y) % 2) {
int z = cal(i, j, n);
if(z == 2) {
if(nn2>0) {
--nn2;
cout << "B";
}
else cout << "R";
}
if(z == 3) {
if(nn3>0) {
--nn3;
cout << "B";
}
else cout << "R";
}
if(z == 4) {
if(nn4>0) {
--nn4;
cout << "B";
}
else cout << "R";
}
}
else cout << "B";
}
cout << "\n";
}
return 1;
}
return 0;
}
void solve() {
int n, m;
cin >> n >> m;
if(n == 1) {
if(m == 0) {
ok();
cout << "B\n";
} else {
no();
}
return;
}
if(n == 3 && m == 5) {
ok();
cout << "RBB\nBBB\nBRB\n";
return;
}
if(n == 3 && m == 7) {
ok();
cout << "BRB\nBBB\nRBR\n";
return;
}
if(!check(1, 1, n, m)) {
if(!check(1, 0, n, m)) {
no();
}
}
}
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
int T;
cin >> T;
while(T--) {
solve();
}
return 0;
}
/*
Impossible
Possible
BBBB
BBBB
BBBB
BBBR
Possible
BBBB
BBBB
BBBB
BRBB
Possible
RBBB
BBBB
BBBB
BBBR
Possible
BBBB
BBBB
BBBB
BRBR
Possible
BBBB
BBBB
RBBB
BRBB
Possible
RBBB
BBBB
BBBB
BRBR
Possible
BBBB
BBBB
RBBB
BRBR
Possible
BBBB
BBBR
RBBB
BRBB
Possible
RBBB
BBBB
RBBB
BRBR
Possible
BBBB
BBBR
RBBB
BRBR
Possible
BBRB
BBBR
RBBB
BRBB
Possible
RBBB
BBBR
RBBB
BRBR
Possible
BBRB
BBBR
RBBB
BRBR
Possible
BBBB
BBBR
RBRB
BRBR
Possible
RBRB
BBBR
RBBB
BRBR
*/
詳細信息
Test #1:
score: 0
Wrong Answer
time: 4ms
memory: 3492kb
input:
768 8 24 7 20 17 61 17 76 16 100 16 16 15 59 9 17 14 31 14 61 10 32 17 55 5 7 10 29 14 82 13 47 17 32 5 10 16 76 14 59 8 28 13 19 12 41 13 41 11 32 11 53 3 2 16 52 16 87 7 12 9 15 15 65 15 53 17 47 6 15 12 1 14 35 16 60 12 31 14 70 15 88 12 2 8 23 12 38 16 111 16 117 5 4 14 90 12 55 15 41 15 48 15 4...
output:
Possible BBBBBBBB BBBBBBBB RBBBBBBB BBBBBBBR RBBBBBBB BBBBBBBR RBBBBBBB BRBRBRBB Possible BBBBBBB BBBBBBB RBBBBBR BBBBBBB RBBBBBR BBBBBBB BBRBRBR Possible BBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBB RBBBBBBBBBBBBBBBR BBBBBBBBBBBBBBBBB RBBBBBBBBBBBBBBBR BBBBBBBBBBBBBBBBB R...
result:
wrong answer Coloring is not possible but participant does not prints no (test case 1)