結果
問題 | No.86 TVザッピング(2) |
ユーザー |
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提出日時 | 2014-12-04 23:40:54 |
言語 | C++11(廃止可能性あり) (gcc 13.3.0) |
結果 |
AC
|
実行時間 | 1,199 ms / 5,000 ms |
コード長 | 2,825 bytes |
コンパイル時間 | 1,524 ms |
コンパイル使用メモリ | 160,296 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-12-25 12:43:57 |
合計ジャッジ時間 | 4,047 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 30 |
ソースコード
#include <bits/stdc++.h>#include <iostream>#include <vector>#include <queue>#include <string>#include <cstring>#include <sstream>#include <set>#include <map>#include <algorithm>#include <cstdio>#include <cstdlib>#define rep(i,n) for(int i=0;i<(int)(n);++i)#define iter(a) __typeof(a.begin())#define FOR(it,a) for(iter(a)it=a.begin();it!=a.end();++it)#define F first#define S second#define SZ(a) (int)((a).size())#define sz(a) SZ(a)#define pb(a) push_back(a)#define mp(a,b) make_pair(a,b)#define ALL(a) (a).begin(),(a).end()using namespace std;typedef long long ll;typedef pair<int,int> PI;typedef unsigned long long ull;#define PR(...) do{cerr << "line : " << __LINE__ << endl; pr(#__VA_ARGS__, __VA_ARGS__);}while(0);template<class T>void pr(const string& name, T t){cerr << name << ": " << t << endl;}template<typename T, typename ... Types>void pr(const string& names, T t, Types ... rest) {auto comma_pos = names.find(',');cerr << names.substr(0, comma_pos) << ": " << t << ", ";auto next_name_pos = names.find_first_not_of(" \t\n", comma_pos + 1);pr(string(names, next_name_pos), rest ...);}template<class T,class U> ostream& operator<< (ostream& o, const pair<T,U>& v){return o << "(" << v.F << ", " << v.S << ")";}template<class T> ostream& operator<< (ostream& o, const vector<T>& v){o << "{";rep(i,SZ(v)) o << (i?", ":"") << v[i];return o << "}";}#define endl '\n'string in[110];int dx[] = {0,1,0,-1};int dy[] = {-1,0,1,0};int vis[110][110];int main(int argc, char *argv[]){ll n,m;cin >> n >> m;rep(i,n) cin >> in[i];int fr = 0;rep(i,n)rep(j,m) fr += in[i][j]=='.';int vcnt = 1;rep(i,n)rep(j,m){if(in[i][j] == '#') continue;//bool fl = i==1 && j == 1;rep(k,4){++vcnt;int sdir = k;int cx = i + dx[sdir];int cy = j + dy[sdir];if(cx < 0 || cx >= n || cy < 0 || cy >= m || in[cx][cy] == '#')continue;int cfr = 0;do{//if(fl) PR(cx,cy);++cfr;vis[cx][cy] = vcnt;int nx = cx + dx[sdir];int ny = cy + dy[sdir];if(nx < 0 || nx >= n || ny < 0 || ny >= m ||vis[nx][ny] == vcnt || in[nx][ny]=='#') ++sdir;sdir &= 3;nx = cx + dx[sdir];ny = cy + dy[sdir];if(nx < 0 || nx >= n || ny < 0 || ny >= m ||vis[nx][ny] == vcnt || in[nx][ny]=='#') break;cx = nx;cy = ny;//PR(cx,cy,cfr);}while(cx != i || cy != j);//PR(cx,cy,cfr);if(cfr == fr-1 && cx == i && cy == j){cout << "YES" << endl;return 0;}//return 0;}}cout << "NO" << endl;}