結果
問題 | No.367 ナイトの転身 |
ユーザー | ふーらくたる |
提出日時 | 2016-07-06 09:01:18 |
言語 | C++11 (gcc 11.4.0) |
結果 |
AC
|
実行時間 | 31 ms / 2,000 ms |
コード長 | 2,179 bytes |
コンパイル時間 | 591 ms |
コンパイル使用メモリ | 66,540 KB |
実行使用メモリ | 5,888 KB |
最終ジャッジ日時 | 2024-10-12 20:25:33 |
合計ジャッジ時間 | 1,673 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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 | 3 ms
5,376 KB |
testcase_01 | AC | 3 ms
5,376 KB |
testcase_02 | AC | 3 ms
5,504 KB |
testcase_03 | AC | 3 ms
5,376 KB |
testcase_04 | AC | 3 ms
5,504 KB |
testcase_05 | AC | 3 ms
5,504 KB |
testcase_06 | AC | 3 ms
5,504 KB |
testcase_07 | AC | 3 ms
5,504 KB |
testcase_08 | AC | 4 ms
5,376 KB |
testcase_09 | AC | 3 ms
5,504 KB |
testcase_10 | AC | 22 ms
5,888 KB |
testcase_11 | AC | 31 ms
5,888 KB |
testcase_12 | AC | 7 ms
5,632 KB |
testcase_13 | AC | 7 ms
5,760 KB |
testcase_14 | AC | 13 ms
5,760 KB |
testcase_15 | AC | 3 ms
5,376 KB |
testcase_16 | AC | 13 ms
5,632 KB |
testcase_17 | AC | 5 ms
5,376 KB |
testcase_18 | AC | 5 ms
5,376 KB |
testcase_19 | AC | 6 ms
5,376 KB |
testcase_20 | AC | 4 ms
5,504 KB |
testcase_21 | AC | 5 ms
5,504 KB |
testcase_22 | AC | 3 ms
5,504 KB |
testcase_23 | AC | 3 ms
5,504 KB |
testcase_24 | AC | 4 ms
5,376 KB |
testcase_25 | AC | 3 ms
5,504 KB |
testcase_26 | AC | 3 ms
5,504 KB |
コンパイルメッセージ
main.cpp: In function ‘void Solve()’: main.cpp:44:25: warning: ‘gc’ may be used uninitialized in this function [-Wmaybe-uninitialized] 44 | if (s.row == gr && s.col == gc) { | ~~~~~~~~~~~~^~~~~~~~~~~~~~ main.cpp:44:9: warning: ‘gr’ may be used uninitialized in this function [-Wmaybe-uninitialized] 44 | if (s.row == gr && s.col == gc) { | ^~ main.cpp:41:27: warning: ‘sc’ may be used uninitialized in this function [-Wmaybe-uninitialized] 41 | cost[kKNIGHT][sr][sc] = 0; | ~~~~~~~~~~~~~~~~~~~~~~^~~ main.cpp:41:27: warning: ‘sr’ may be used uninitialized in this function [-Wmaybe-uninitialized]
ソースコード
#include <iostream> #include <cstring> #include <queue> using namespace std; struct State { int row, col, piece, cost; }; const int kMAX_H = 510; const int kMAX_W = 510; const int kKNIGHT = 0; const int kMINI_BISHOP = 1; string S[kMAX_H]; int H, W; int cost[2][kMAX_H][kMAX_W]; int n_dr[8] = { 1, 1, -1, -1, 2, 2, -2, -2}, n_dc[8] = { 2, -2, 2, -2, 1, -1, 1, -1}; int b_dr[4] = { 1, 1, -1, -1}, b_dc[4] = { 1, -1, 1, -1}; void Solve() { queue<State> que; int sr, sc, gr, gc; for (int r = 0; r < H; r++) { for (int c = 0; c < W; c++) { if (S[r][c] == 'S') { sr = r; sc = c; } else if (S[r][c] == 'G') { gr = r; gc = c; } } } memset(cost, -1, sizeof(cost)); que.push((State){sr, sc, kKNIGHT, 0}); cost[kKNIGHT][sr][sc] = 0; while (!que.empty()) { State s = que.front(); que.pop(); if (s.row == gr && s.col == gc) { cout << s.cost << endl; return; } if (s.piece == kKNIGHT) { for (int i = 0; i < 8; i++) { int nr = s.row + n_dr[i], nc = s.col + n_dc[i]; if (0 <= nr && nr < H && 0 <= nc && nc < W) { int npiece = S[nr][nc] == 'R' ? kMINI_BISHOP : kKNIGHT; if (cost[npiece][nr][nc] >= 0) continue; que.push((State){nr, nc, npiece, s.cost + 1}); cost[npiece][nr][nc] = s.cost + 1; } } } else { for (int i = 0; i < 4; i++) { int nr = s.row + b_dr[i], nc = s.col + b_dc[i]; if (0 <= nr && nr < H && 0 <= nc && nc < W) { int npiece = S[nr][nc] == 'R' ? kKNIGHT : kMINI_BISHOP; if (cost[npiece][nr][nc] >= 0) continue; que.push((State){nr, nc, npiece, s.cost + 1}); cost[npiece][nr][nc] = s.cost + 1; } } } } cout << -1 << endl; } int main() { cin >> H >> W; for (int i = 0; i < H; i++) { cin >> S[i]; } Solve(); return 0; }