Submission #691216


Source Code Expand

#include <bits/stdc++.h>
using namespace std;

typedef ostringstream OSS; typedef istringstream ISS;
typedef long long LL;
typedef pair<int, int> PII;  typedef pair<LL, LL> PLL;
typedef vector<int>    VI;   typedef vector<VI>   VVI;   typedef vector<VVI>   VVVI;
typedef vector<LL>     VLL;  typedef vector<VLL>  VVLL;  typedef vector<VVLL>  VVVLL;
typedef vector<double> VD;   typedef vector<VD>   VVD;   typedef vector<VVD>   VVVD;
typedef vector<string> VS;   typedef vector<VS>   VVS;   typedef vector<VVS>   VVVS;
typedef vector<bool>   VB;   typedef vector<VB>   VVB;   typedef vector<VVB>   VVVB;
typedef vector<PII>    VPII; typedef vector<VPII> VVPII; typedef vector<VVPII> VVVPII;
typedef vector<PLL>    VPLL; typedef vector<VPLL> VVPLL; typedef vector<VVPLL> VVVPLL;

typedef unsigned int  UI;
typedef vector<UI>    VUI;
typedef vector<VUI>   VVUI;

#define fst first
#define snd second
// #define Y first
// #define X second
#define MP make_pair
#define PB push_back
#define EB emplace_back 
#define ALL(x)  (x).begin(),(x).end()
#define RALL(x) (x).rbegin(),(x).rend()
#define RANGEBOX(x,y,maxX,maxY) (0 <= (x) && 0 <= (y) && (x) < (maxX) && (y) < (maxY))
#define RANGE(x, l, r) ((l) <= (x) && (x) <= (r))
#define rep(i, N)  for (int i = 0; i < (int)(N); i++)
#define rrep(i, N) for (int i = N - 1; i >= 0; i--)
#define REP(i, init, N)  for (int i = (init); i < (int)(N); i++)
#define RREP(i, N, last) for (int i = (init - 1); i >= last; i--)
#define MAXUD(orig, target) orig = max(orig, target)
#define MINUD(orig, target) orig = min(orig, target)
#define DUMP( x ) cerr << #x << " = " << ( x ) << endl

template < typename T > inline T fromString(const string &s) { T res; ISS iss(s); iss >> res; return res; };
template < typename T > inline string toString(const T &a)   { OSS oss; oss << a; return oss.str(); };

template<typename T=int> inline void dump(vector<T> vs, bool ent=false) { rep(i, vs.size()) cout << vs[i] << (i+1==vs.size() ? '\n' : ' '); if (ent) cout << endl; }
template<typename T = int> inline void dump(vector<vector<T>> vs, bool ent = false) { rep(i, vs.size()) dump<T>(vs[i]); if (ent) cout << endl; }

const int    INF  = 0x3f3f3f3f;
const LL     INFL = 0x3f3f3f3f3f3f3f3fLL;
const double DINF = 0x3f3f3f3f;
const int    DX[] = {1,  0, -1, 0};
const int    DY[] = {0, -1,  0, 1};
const double EPS  = 1e-12;
// const double PI   = acos(-1.0);
// lambda: [](T1 x)->T2{return y;}
// simple lambda: [](T x){return x;}

int main(void) {
    int H, W;
    cin >> H >> W;
    PII s, g;
    cin >> s.fst >> s.snd >> g.fst >> g.snd;
    --s.fst; --s.snd; --g.fst; --g.snd;
    VS ts(H);
    rep(i, H) cin >> ts[i];

    VVI dists(H, VI(W, INF));
    dists[s.fst][s.snd] = 0;
    queue<PII> q;
    q.push(s);
    while(q.size()) {
        int y = q.front().fst;
        int x = q.front().snd;
        q.pop();

        rep(i, 4) {
            int ny = y + DY[i];
            int nx = x + DX[i];
            if (!RANGEBOX(nx, ny, W, H)) continue;
            if (ts[ny][nx] == '#') continue;
            if (dists[ny][nx] != INF) continue;

            dists[ny][nx] = dists[y][x] + 1;
            q.push(MP(ny, nx));
        }
    }

    cout << dists[g.fst][g.snd] << endl;

    return 0;
}

Submission Info

Submission Time
Task A - 幅優先探索
User snakazawa
Language C++14 (GCC 5.4.1)
Score 100
Code Size 3309 Byte
Status AC
Exec Time 6 ms
Memory 256 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 100 / 100
Status
AC × 3
AC × 25
Set Name Test Cases
Sample subtask0_sample01.txt, subtask0_sample02.txt, subtask0_sample03.txt
All subtask0_sample01.txt, subtask0_sample02.txt, subtask0_sample03.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_15.txt, subtask1_16.txt, subtask1_17.txt, subtask1_18.txt, subtask1_19.txt, subtask1_20.txt, subtask1_21.txt, subtask1_22.txt
Case Name Status Exec Time Memory
subtask0_sample01.txt AC 4 ms 256 KB
subtask0_sample02.txt AC 4 ms 256 KB
subtask0_sample03.txt AC 4 ms 256 KB
subtask1_01.txt AC 4 ms 256 KB
subtask1_02.txt AC 4 ms 256 KB
subtask1_03.txt AC 4 ms 256 KB
subtask1_04.txt AC 4 ms 256 KB
subtask1_05.txt AC 4 ms 256 KB
subtask1_06.txt AC 4 ms 256 KB
subtask1_07.txt AC 4 ms 256 KB
subtask1_08.txt AC 4 ms 256 KB
subtask1_09.txt AC 4 ms 256 KB
subtask1_10.txt AC 4 ms 256 KB
subtask1_11.txt AC 4 ms 256 KB
subtask1_12.txt AC 4 ms 256 KB
subtask1_13.txt AC 4 ms 256 KB
subtask1_14.txt AC 4 ms 256 KB
subtask1_15.txt AC 4 ms 256 KB
subtask1_16.txt AC 4 ms 256 KB
subtask1_17.txt AC 5 ms 256 KB
subtask1_18.txt AC 6 ms 256 KB
subtask1_19.txt AC 4 ms 256 KB
subtask1_20.txt AC 4 ms 256 KB
subtask1_21.txt AC 4 ms 256 KB
subtask1_22.txt AC 4 ms 256 KB