結果
問題 |
No.3199 Key-Door Grid
|
ユーザー |
👑 ![]() |
提出日時 | 2025-07-12 03:39:09 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 877 ms / 3,000 ms |
コード長 | 1,436 bytes |
コンパイル時間 | 391 ms |
コンパイル使用メモリ | 81,904 KB |
実行使用メモリ | 171,480 KB |
最終ジャッジ日時 | 2025-07-12 03:39:25 |
合計ジャッジ時間 | 15,199 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 37 |
ソースコード
H,W,M = map(int,input().split()) S = [ input() for i in range(H) ] INF = float("inf") dp = [ [ [INF] * 10 for j in range(W)] for i in range(H)] st = None go = None for i in range(H): for j in range(W): if S[i][j] == "S": st = (i,j) if S[i][j] == "G": go = (i,j) from collections import deque q = deque() dp[st[0]][st[1]][0] = 0 q.append( (st[0],st[1],0) ) while q: x,y,z = q.popleft() cost = dp[x][y][z] + 1 for i,j in ( (x-1,y),(x+1,y),(x,y-1),(x,y+1) ): if not ( 0 <= i < H and 0 <= j < W ): continue elif S[i][j] == "#": pass elif S[i][j] == "." or S[i][j] == "G" or S[i][j] == "S": if dp[i][j][z] > cost: dp[i][j][z] = cost q.append( (i,j,z) ) if S[i][j] == "G": break elif "1" <= S[i][j] <= "9": k = int(S[i][j]) if dp[i][j][k] > cost: dp[i][j][k] = cost q.append( (i,j,k) ) elif "a" <= S[i][j] <= "i": k = ord(S[i][j]) - ord("a") + 1 if z == k and dp[i][j][k] > cost: dp[i][j][k] = cost q.append( (i,j,k) ) #for k in range(10): # for i in range(H): # print ( [ dp[i][j][k] for j in range(W) ] ) # print () ans = min(dp[go[0]][go[1]]) if ans == INF: ans = -1 print (ans)