結果
問題 | No.367 ナイトの転身 |
ユーザー | is_eri23 |
提出日時 | 2016-05-12 19:19:41 |
言語 | C++11 (gcc 11.4.0) |
結果 |
AC
|
実行時間 | 16 ms / 2,000 ms |
コード長 | 3,513 bytes |
コンパイル時間 | 1,438 ms |
コンパイル使用メモリ | 168,192 KB |
実行使用メモリ | 6,824 KB |
最終ジャッジ日時 | 2024-10-05 14:04:39 |
合計ジャッジ時間 | 2,585 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
6,816 KB |
testcase_01 | AC | 3 ms
6,816 KB |
testcase_02 | AC | 3 ms
6,820 KB |
testcase_03 | AC | 3 ms
6,816 KB |
testcase_04 | AC | 3 ms
6,816 KB |
testcase_05 | AC | 3 ms
6,816 KB |
testcase_06 | AC | 3 ms
6,820 KB |
testcase_07 | AC | 3 ms
6,816 KB |
testcase_08 | AC | 3 ms
6,816 KB |
testcase_09 | AC | 2 ms
6,820 KB |
testcase_10 | AC | 11 ms
6,820 KB |
testcase_11 | AC | 16 ms
6,820 KB |
testcase_12 | AC | 10 ms
6,820 KB |
testcase_13 | AC | 10 ms
6,816 KB |
testcase_14 | AC | 10 ms
6,820 KB |
testcase_15 | AC | 3 ms
6,816 KB |
testcase_16 | AC | 10 ms
6,820 KB |
testcase_17 | AC | 3 ms
6,816 KB |
testcase_18 | AC | 4 ms
6,824 KB |
testcase_19 | AC | 5 ms
6,816 KB |
testcase_20 | AC | 4 ms
6,820 KB |
testcase_21 | AC | 5 ms
6,820 KB |
testcase_22 | AC | 2 ms
6,816 KB |
testcase_23 | AC | 3 ms
6,820 KB |
testcase_24 | AC | 3 ms
6,820 KB |
testcase_25 | AC | 2 ms
6,816 KB |
testcase_26 | AC | 3 ms
6,820 KB |
ソースコード
#include <bits/stdc++.h> #define EPS 1e-9 #define INF 1070000000LL #define MOD 1000000007LL #define fir first #define foreach(it,X) for(auto it=(X).begin();it!=(X).end();it++) #define numa(x,a) for(auto x: a) #define ite iterator #define mp make_pair #define rep(i,n) rep2(i,0,n) #define rep2(i,m,n) for(int i=m;i<(n);i++) #define pb push_back #define pf push_front #define sec second #define sz(x) ((int)(x).size()) #define ALL( c ) (c).begin(), (c).end() #define gcd(a,b) __gcd(a,b) #define mem(x,n) memset(x,n,sizeof(x)) #define endl "\n" using namespace std; template <int POS, class TUPLE> void deploy(std::ostream &os, const TUPLE &tuple){} template <int POS, class TUPLE, class H, class ...Ts> void deploy(std::ostream &os, const TUPLE &t){ os << (POS == 0 ? "" : ", ") << get<POS>(t); deploy<POS + 1, TUPLE, Ts...>(os, t); } template <class T,class U> std::ostream& operator<<(std::ostream &os, std::pair<T,U> &p){ os << "(" << p.first <<", " << p.second <<")";return os; } template <class T> std::ostream& operator<<(std::ostream &os, std::vector<T> &v){ int remain = v.size(); os << "{"; for(auto e: v) os << e << (--remain == 0 ? "}" : ", "); return os; } template <class T> std::ostream& operator<<(std::ostream &os, std::set<T> &v){ int remain = v.size(); os << "{"; for(auto e: v) os << e << (--remain == 0 ? "}" : ", "); return os; } template <class T, class K> std::ostream& operator<<(std::ostream &os, std::map<T, K> &mp){ int remain = mp.size(); os << "{"; for(auto e: mp) os << "(" << e.first << " -> " << e.second << ")" << (--remain == 0 ? "}" : ", "); return os; } #define DEBUG1(var0) { std::cerr << (#var0) << "=" << (var0) << endl; } #define DEBUG2(var0, var1) { std::cerr << (#var0) << "=" << (var0) << ", ";DEBUG1(var1); } #define DEBUG3(var0, var1, var2) { std::cerr << (#var0) << "=" << (var0) << ", ";DEBUG2(var1,var2); } #define DEBUG4(var0, var1, var2, var3) { std::cerr << (#var0) << "=" << (var0) << ", ";DEBUG3(var1,var2,var3); } using ll = long long; int H,W; string bd[510]; int memo[510][510][2]; int sx, sy; int gx, gy; int main() { cin.tie(0); ios_base::sync_with_stdio(0); mem(memo,-1); cin >> H >> W; rep(i,H){ cin >> bd[i]; auto j = bd[i].find('G'); auto j2 = bd[i].find('S'); if (j != string::npos) { gx = i; gy = j; } if (j2 != string::npos) { sx = i; sy = j2; } } vector <int> dxkn = {-2, -2, -1, -1, 1, 1, 2, 2}; vector <int> dykn = {-1, 1, -2, 2, -2, 2, -1, 1}; vector <int> dxvi = {-1,-1,1,1}; vector <int> dyvi = {-1,1,-1,1}; using T = pair <bool, pair <int,int> >; queue <T> que; memo[sx][sy][true]= 0; que.push(mp(true, mp(sx, sy))); while (!que.empty()) { auto t = que.front(); que.pop(); bool kn = t.fir; int x = t.sec.fir; int y = t.sec.sec; int c = memo[x][y][kn]; if (bd[x][y] == 'R') { kn = !kn; } vector <int> &dx = kn ? dxkn : dxvi; vector <int> &dy = kn ? dykn : dyvi; for (int k = 0; k < sz(dx); k++) { int nx = x + dx[k]; int ny = y + dy[k]; if (0 <= nx && nx < H && 0 <= ny && ny < W) { if (memo[nx][ny][kn] == -1) { memo[nx][ny][kn] = c + 1; que.push(mp(kn, mp(nx,ny))); } } } } int ans1 = memo[gx][gy][0]; int ans2 = memo[gx][gy][1]; int ans = INF; if (ans1 >= 0) { ans = min(ans,ans1); } if (ans2 >= 0) { ans = min(ans,ans2); } if (ans == INF) { cout << -1 << endl; }else{ cout << ans << endl; } return 0; }