結果
問題 |
No.3199 Key-Door Grid
|
ユーザー |
![]() |
提出日時 | 2025-07-11 22:10:23 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 142 ms / 3,000 ms |
コード長 | 5,440 bytes |
コンパイル時間 | 2,379 ms |
コンパイル使用メモリ | 216,136 KB |
実行使用メモリ | 25,472 KB |
最終ジャッジ日時 | 2025-07-11 22:10:29 |
合計ジャッジ時間 | 5,976 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 37 |
コンパイルメッセージ
main.cpp: In function ‘void solve()’: main.cpp:115:12: warning: ‘sx’ may be used uninitialized [-Wmaybe-uninitialized] 115 | dist[sx][sy][0] = 0; | ^ main.cpp:101:9: note: ‘sx’ was declared here 101 | int sx,sy,gx,gy; | ^~ main.cpp:125:20: warning: ‘gy’ may be used uninitialized [-Wmaybe-uninitialized] 125 | if(x == gx && y == gy){ | ~~~~~~~~^~~~~~~~~~ main.cpp:101:18: note: ‘gy’ was declared here 101 | int sx,sy,gx,gy; | ^~ main.cpp:125:9: warning: ‘gx’ may be used uninitialized [-Wmaybe-uninitialized] 125 | if(x == gx && y == gy){ | ^~ main.cpp:101:15: note: ‘gx’ was declared here 101 | int sx,sy,gx,gy; | ^~ main.cpp:115:16: warning: ‘sy’ may be used uninitialized [-Wmaybe-uninitialized] 115 | dist[sx][sy][0] = 0; | ^ main.cpp:101:12: note: ‘sy’ was declared here 101 | int sx,sy,gx,gy; | ^~
ソースコード
//#pragma GCC target("avx2") //#pragma GCC optimize("O3") //#pragma GCC optimize("unroll-loops") #include <bits/stdc++.h> using namespace std; using ll = long long; using pii = pair<int,int>; using pll = pair<ll,ll>; using pli = pair<ll,int>; #define AMARI 998244353 //#define AMARI 1000000007 #define el '\n' #define El '\n' #define YESNO(x) ((x) ? "Yes" : "No") #define YES YESNO(true) #define NO YESNO(false) #define REV_PRIORITY_QUEUE(tp) priority_queue<tp,vector<tp>,greater<tp>> #define EXIT_ANS(x) {cout << (x) << '\n'; return;} template <typename T> void inline SORT(vector<T> &v){sort(v.begin(),v.end()); return;} template <typename T> void inline VEC_UNIQ(vector<T> &v){sort(v.begin(),v.end()); v.erase(unique(v.begin(),v.end()),v.end()); return;} template <typename T> T inline MAX(vector<T> &v){return *max_element(v.begin(),v.end());} template <typename T> T inline MIN(vector<T> &v){return *min_element(v.begin(),v.end());} template <typename T> T inline SUM(vector<T> &v){T ans = 0; for(int i = 0; i < (int)v.size(); i++)ans += v[i]; return ans;} template <typename T> void inline DEC(vector<T> &v){for(int i = 0; i < (int)v.size(); i++)v[i]--; return;} template <typename T> void inline INC(vector<T> &v){for(int i = 0; i < (int)v.size(); i++)v[i]++; return;} void inline TEST(void){cerr << "TEST" << endl; return;} template <typename T> bool inline chmin(T &x,T y){ if(x > y){ x = y; return true; } return false; } template <typename T> bool inline chmax(T &x,T y){ if(x < y){ x = y; return true; } return false; } template <typename T = long long> vector<T> inline get_vec(int n){ vector<T> ans(n); for(int i = 0; i < n; i++)cin >> ans[i]; return ans; } template <typename T> void inline print_vec(vector<T> &vec,bool kaigyou = false){ int n = (int)vec.size(); for(int i = 0; i < n; i++){ cout << vec[i]; if(kaigyou || i == n - 1)cout << '\n'; else cout << ' '; } if(!n)cout << '\n'; return; } template <typename T> void inline debug_vec(vector<T> &vec,bool kaigyou = false){ int n = (int)vec.size(); for(int i = 0; i < n; i++){ cerr << vec[i]; if(kaigyou || i == n - 1)cerr << '\n'; else cerr << ' '; } if(!n)cerr << '\n'; return; } vector<vector<int>> inline get_graph(int n,int m = -1,bool direct = false){ if(m == -1)m = n - 1; vector<vector<int>> g(n); while(m--){ int u,v; cin >> u >> v; u--; v--; g[u].push_back(v); if(!direct)g[v].push_back(u); } return g; } vector<int> make_inv(vector<int> p){ int n = (int)p.size(); vector<int> ans(n); for(int i = 0; i < n; i++)ans[p[i]] = i; return ans; } #define MULTI_TEST_CASE false void solve(void){ //問題を見たらまず「この問題設定から言えること」をいっぱい言う //よりシンプルな問題に言い換えられたら、言い換えた先の問題を自然言語ではっきりと書く //複数の解法のアイデアを思いついた時は全部メモしておく //g++ -D_GLIBCXX_DEBUG -Wall -O2 e.cpp -o o //[i][j][l] = (i,j) にいて、鍵 l を持っていることが可能か int h,w,m; cin >> h >> w >> m; m = 10; vector<string> s = get_vec<string>(h); int sx,sy,gx,gy; for(int i = 0; i < h; i++){ for(int j = 0; j < w; j++){ if(s[i][j] == 'S'){ sx = i; sy = j; } if(s[i][j] == 'G'){ gx = i; gy = j; } } } vector<vector<vector<int>>> dist(h,vector<vector<int>>(w,vector<int>(m + 2,-1))); dist[sx][sy][0] = 0; queue<tuple<int,int,int>> que; que.push(tuple(sx,sy,0)); vector<int> dx = {1,0,-1,0}; vector<int> dy = {0,-1,0,1}; while(!que.empty()){ int x,y,key; tie(x,y,key) = que.front(); que.pop(); if(x == gx && y == gy){ EXIT_ANS(dist[gx][gy][key]); } for(int i = 0; i < 4; i++){ int xx = x + dx[i],yy = y + dy[i]; if(xx < 0 || xx >= h)continue; if(yy < 0 || yy >= w)continue; if(s[xx][yy] == '#')continue; if(s[xx][yy] == '.' || s[xx][yy] == 'G' || s[xx][yy] == 'S'){ if(dist[xx][yy][key] != -1)continue; dist[xx][yy][key] = dist[x][y][key] + 1; que.push(tuple(xx,yy,key)); continue; } if(s[xx][yy] >= '1' && s[xx][yy] <= '9'){ if(dist[xx][yy][s[xx][yy] - '0'] != -1)continue; dist[xx][yy][s[xx][yy] - '0'] = dist[x][y][key] + 1; que.push(tuple(xx,yy,s[xx][yy] - '0')); continue; } if(s[xx][yy] >= 'a' && s[xx][yy] <= 'i'){ if(s[xx][yy] - 'a' != key - 1){ continue; } if(dist[xx][yy][key] != -1)continue; dist[xx][yy][key] = dist[x][y][key] + 1; que.push(tuple(xx,yy,key)); continue; } assert(0); } } cout << -1 << el; return; } void calc(void){ return; } signed main(void){ cin.tie(nullptr); ios::sync_with_stdio(false); calc(); int t = 1; if(MULTI_TEST_CASE)cin >> t; while(t--){ solve(); } return 0; }