結果
問題 | No.340 雪の足跡 |
ユーザー |
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提出日時 | 2016-03-30 01:07:05 |
言語 | C++11(廃止可能性あり) (gcc 13.3.0) |
結果 |
TLE
(最新)
AC
(最初)
|
実行時間 | - |
コード長 | 2,655 bytes |
コンパイル時間 | 919 ms |
コンパイル使用メモリ | 85,928 KB |
実行使用メモリ | 73,940 KB |
最終ジャッジ日時 | 2024-10-02 02:05:00 |
合計ジャッジ時間 | 11,530 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 5 |
other | AC * 28 TLE * 4 |
コンパイルメッセージ
main.cpp: In function ‘int main()’: main.cpp:103:12: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 103 | scanf("%d", &p); | ~~~~~^~~~~~~~~~
ソースコード
#include <iostream>#include <vector>#include <map>#include <algorithm>#include <limits.h>#include <time.h>#include <string>#include <string.h>#include <sstream>#include <set>#include <cstdio>#include <cstdlib>#include <cmath>#include <stack>#include <queue>using namespace std;typedef long long ll;const int MAX_H = 1000;const int MAX_W = 1000;const int DY[4] = {-1, 0, 0, 1};const int DX[4] = { 0,-1, 1, 0};struct Coord {int y;int x;int dist;Coord(int y, int x, int dist){this->y = y;this->x = x;this->dist = dist;}};int field[MAX_H][MAX_W][2];int walking[MAX_H][MAX_W][4];int w, h, n;void walk(int from, int to){int fromY = from/w;int fromX = from%w;int toY = to/w;int toX = to%w;if(fromY < toY){field[fromY][fromX][0]++;field[toY][toX][0]--;}else if(fromX < toX){field[fromY][fromX][1]++;field[toY][toX][1]--;}else if(fromY > toY){field[fromY][fromX][0]--;field[toY][toX][0]++;}else{field[fromY][fromX][1]--;field[toY][toX][1]++;}}void cleanField(){int valuesW[w];int valuesH[h];memset(valuesW, 0, sizeof(valuesW));memset(valuesH, 0, sizeof(valuesH));for(int y = 0; y < h; y++){for(int x = 0; x < w; x++){if(y > 0 && valuesW[x] > 0){walking[y-1][x][3] = true;walking[y][x][0] = true;}if(x > 0 && valuesH[y] > 0){walking[y][x-1][2] = true;walking[y][x][1] = true;}valuesW[x] += field[y][x][0];valuesH[y] += field[y][x][1];}}}int main(){memset(field, 0, sizeof(field));memset(walking, false, sizeof(walking));cin >> w >> h >> n;for(int i = 0; i < n; i++){int m;cin >> m;int bp = 0;int p = 0;for(int j = 0; j < m+1; j++){bp = p;scanf("%d", &p);if(j > 0){walk(bp, p);}}}cleanField();queue<Coord> que;que.push(Coord(0, 0, 0));int minDist = INT_MAX;map<int, bool> checkList;while(!que.empty()){Coord coord = que.front(); que.pop();int z = coord.y * w + coord.x;if(checkList[z]) continue;checkList[z] = true;if(h*w-1 == z){minDist = min(minDist, coord.dist);continue;}for(int i = 0; i < 4; i++){int ny = coord.y + DY[i];int nx = coord.x + DX[i];if(ny < 0 || h <= ny || nx < 0 || w <= nx) continue;if(walking[coord.y][coord.x][i]){que.push(Coord(ny, nx, coord.dist+1));}}}if (minDist == INT_MAX){cout << "Odekakedekinai.." << endl;}else{cout << minDist << endl;}return 0;}