結果
| 問題 |
No.8069 Torn Documents
|
| コンテスト | |
| ユーザー |
emthrm
|
| 提出日時 | 2020-04-02 13:47:38 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 3 ms / 2,000 ms |
| コード長 | 2,285 bytes |
| コンパイル時間 | 2,393 ms |
| コンパイル使用メモリ | 202,752 KB |
| 最終ジャッジ日時 | 2025-01-09 12:30:44 |
|
ジャッジサーバーID (参考情報) |
judge2 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 28 |
ソースコード
#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
using namespace std;
#define FOR(i,m,n) for(int i=(m);i<(n);++i)
#define REP(i,n) FOR(i,0,n)
#define ALL(v) (v).begin(),(v).end()
using ll = long long;
const int INF = 0x3f3f3f3f;
const ll LINF = 0x3f3f3f3f3f3f3f3fLL;
const double EPS = 1e-8;
const int MOD = 1000000007;
// const int MOD = 998244353;
const int dy[] = {1, 0, -1, 0}, dx[] = {0, -1, 0, 1};
const int dy8[] = {1, 1, 0, -1, -1, -1, 0, 1}, dx8[] = {0, -1, -1, -1, 0, 1, 1, 1};
template <typename T, typename U> inline bool chmax(T &a, U b) { return a < b ? (a = b, true) : false; }
template <typename T, typename U> inline bool chmin(T &a, U b) { return a > b ? (a = b, true) : false; }
struct IOSetup {
IOSetup() {
cin.tie(nullptr);
ios_base::sync_with_stdio(false);
cout << fixed << setprecision(20);
}
} iosetup;
int main() {
int a, b; string s; cin >> a >> b >> s;
{
int status = 0;
for (char c : s) {
if (c == 'L') {
if (status == 0) status = 1;
} else if (c == 'R') {
if (status == 1) status = 0;
} else if (c == 'U') {
if (status == 1 || status == 2) status = 3;
} else if (c == 'D') {
if (status == 1 || status == 3) status = 2;
}
}
if (status == 3) {
vector<pair<int, int>> walls{{0, 1}, {a + 1, 1}, {a + 2, 0}, {a - 1, b}, {a, b + 1}, {a + 1, b}};
sort(ALL(walls));
walls.erase(unique(ALL(walls)), walls.end());
cout << walls.size() << '\n';
for (auto [a, b] : walls) cout << a << ' ' << b << '\n';
return 0;
}
}
{
int status = 0;
for (char c : s) {
if (c == 'L') {
if (status == 1 || status == 2) status = 3;
} else if (c == 'R') {
if (status == 1 || status == 3) status = 2;
} else if (c == 'U') {
if (status == 0) status = 1;
} else if (c == 'D') {
if (status == 1) status = 0;
}
}
if (status == 3) {
vector<pair<int, int>> walls{{1, 0}, {1, b + 1}, {0, b + 2}, {a, b - 1}, {a + 1, b}, {a, b + 1}};
sort(ALL(walls));
walls.erase(unique(ALL(walls)), walls.end());
cout << walls.size() << '\n';
for (auto [a, b] : walls) cout << a << ' ' << b << '\n';
return 0;
}
}
cout << "-1\n";
return 0;
}
emthrm