結果
問題 | No.157 2つの空洞 |
ユーザー | lunnear |
提出日時 | 2019-01-18 15:15:03 |
言語 | C++11 (gcc 11.4.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,734 bytes |
コンパイル時間 | 299 ms |
コンパイル使用メモリ | 38,016 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-07-06 03:42:35 |
合計ジャッジ時間 | 939 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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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 | 1 ms
5,248 KB |
testcase_01 | AC | 1 ms
5,376 KB |
testcase_02 | WA | - |
testcase_03 | AC | 1 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 1 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 1 ms
5,376 KB |
testcase_08 | AC | 1 ms
5,376 KB |
testcase_09 | AC | 1 ms
5,376 KB |
testcase_10 | AC | 1 ms
5,376 KB |
testcase_11 | AC | 1 ms
5,376 KB |
testcase_12 | AC | 1 ms
5,376 KB |
testcase_13 | AC | 1 ms
5,376 KB |
testcase_14 | AC | 1 ms
5,376 KB |
testcase_15 | AC | 1 ms
5,376 KB |
testcase_16 | AC | 1 ms
5,376 KB |
testcase_17 | AC | 2 ms
5,376 KB |
testcase_18 | WA | - |
testcase_19 | AC | 1 ms
5,376 KB |
コンパイルメッセージ
main.cpp: In function ‘int main()’: main.cpp:78:10: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 78 | scanf("%d %d", &w, &h); | ~~~~~^~~~~~~~~~~~~~~~~ main.cpp:184:32: warning: ‘v1’ may be used uninitialized in this function [-Wmaybe-uninitialized] 184 | ans += abs((*v0).y - (*v1).y); | ~~~~~~^ main.cpp:184:22: warning: ‘v0’ may be used uninitialized in this function [-Wmaybe-uninitialized] 184 | ans += abs((*v0).y - (*v1).y); | ~~~~~~^
ソースコード
#include <stdio.h> #include <stdlib.h> #include <list> class Vector2 { public: Vector2(short x = 0, short y = 0):x(x), y(y){} short x, y; float LengthSq(){return (x * x + y * y);} Vector2 operator -(Vector2 &a){return Vector2(x - a.x, y - a.y);} }; struct Square { char val = -1; bool check = false; }; class Field { public: Field(int w, int h); ~Field(); private: int w, h; Square *sq; public: Square* Get(int x, int y); bool isField(int x, int y); }; Field::Field(int w, int h) { this->w = w; this->h = h; sq = new Square[w * h]; } Field::~Field() { delete[] sq; } Square* Field::Get(int x, int y) { return &sq[x + y * w]; } bool Field::isField(int x, int y) { if(x < 0) return false; if(y < 0) return false; if(x >= w) return false; if(y >= h) return false; return true; } int main() { int w, h; scanf("%d %d", &w, &h); getchar(); Field f(w, h); for(int y = 0; y < h; y++){ for(int x = 0; x < w; x++){ Square *s = f.Get(x, y); s->val = (getchar() == '#')? 0:1; } getchar(); } std::list<Vector2> holl[2]; int count = 0; for(int y = 0; y < h; y++){ for(int x = 0; x < w; x++){ Square *s = f.Get(x, y); if(s->check) continue; if(s->val != 1) continue; std::list<Vector2> history; while(1) { s->check = true; bool next = false; const Vector2 d[4] = { {-1, 0}, { 1, 0}, { 0, -1}, { 0, 1} }; for(int i = 0; i < 4; i++) { if(!f.isField(x + d[i].x, y + d[i].y)) continue; Square *to = f.Get(x + d[i].x, y + d[i].y); if(to->val && !to->check) { Vector2 v; v.x = x; v.y = y; history.push_back(v); s = to; x += d[i].x; y += d[i].y; next = true; break; } } if(next) continue; holl[count].push_back(Vector2(x, y)); if(history.empty()) break; Vector2 v = history.back(); s = f.Get(v.x, v.y); x = v.x; y = v.y; history.pop_back(); } count++; if(count == 2) break; } if(count == 2) break; } Vector2 *v0, *v1; float min = 999; for(auto i = holl[0].begin(); i != holl[0].end(); i++) { for(auto j = holl[1].begin(); j != holl[1].end(); j++) { Vector2 v = (*i) - (*j); float l = v.LengthSq(); if(l < min) { v0 = &(*i); v1 = &(*j); min = l; if(min == 4)// 2^2 break; } } } int ans = -1; ans += abs((*v0).x - (*v1).x); ans += abs((*v0).y - (*v1).y); printf("%d\n", ans); return 0; }