結果

問題 No.34 砂漠の行商人
ユーザー jabeejabee
提出日時 2023-03-04 13:13:18
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 2,437 ms / 5,000 ms
コード長 5,061 bytes
コンパイル時間 4,861 ms
コンパイル使用メモリ 273,440 KB
実行使用メモリ 422,528 KB
最終ジャッジ日時 2024-09-18 01:15:26
合計ジャッジ時間 16,479 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge5
このコードへのチャレンジ
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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 28 ms
18,944 KB
testcase_01 AC 28 ms
19,072 KB
testcase_02 AC 30 ms
19,456 KB
testcase_03 AC 29 ms
20,096 KB
testcase_04 AC 48 ms
22,656 KB
testcase_05 AC 47 ms
22,912 KB
testcase_06 AC 28 ms
19,200 KB
testcase_07 AC 59 ms
23,552 KB
testcase_08 AC 71 ms
25,472 KB
testcase_09 AC 989 ms
365,440 KB
testcase_10 AC 284 ms
418,048 KB
testcase_11 AC 1,540 ms
422,528 KB
testcase_12 AC 41 ms
22,656 KB
testcase_13 AC 2,437 ms
124,672 KB
testcase_14 AC 1,899 ms
124,348 KB
testcase_15 AC 67 ms
107,264 KB
testcase_16 AC 182 ms
202,240 KB
testcase_17 AC 45 ms
60,800 KB
testcase_18 AC 56 ms
54,144 KB
testcase_19 AC 536 ms
45,440 KB
testcase_20 AC 912 ms
62,080 KB
testcase_21 AC 30 ms
20,864 KB
testcase_22 AC 50 ms
61,440 KB
testcase_23 AC 110 ms
229,376 KB
testcase_24 AC 1,206 ms
252,672 KB
testcase_25 AC 75 ms
28,928 KB
権限があれば一括ダウンロードができます

ソースコード

diff # 

#include<bits/stdc++.h>
#include <math.h>
#include <algorithm>
#include <iostream>
#include <vector>
#include <atcoder/all>
#include <atcoder/dsu>
#include <atcoder/segtree>
#include <atcoder/lazysegtree>
#include <atcoder/modint>
#include <atcoder/scc>
#include <chrono>
#include <random>
#include <cassert>
#ifndef templete
#define rep(i,a,b) for(int i=a;i<b;i++)
#define rrep(i,a,b) for(int i=a;i>=b;i--)
#define fore(i,a) for(auto &i:a)
#define all(x) (x).begin(),(x).end()

//#include<boost/multiprecision/cpp_int.hpp>
//using namespace boost::multiprecision;
using namespace std;
using namespace atcoder;
//using atmint = modint998244353;
using atmint = modint;
using Graph = vector<vector<int>>;
using P = pair<long long,long long>;
//#pragma GCC optimize ("-O3")
using namespace std; void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); _main(); }
typedef long long ll; const int inf = INT_MAX / 2; const ll infl = 1LL << 60;
template<class T>bool chmax(T& a, const T& b) { if (a < b) { a = b; return 1; } return 0; }
template<class T>bool chmin(T& a, const T& b) { if (b < a) { a = b; return 1; } return 0; }

//---------------------------------------------------------------------------------------------------

template<int MOD> struct ModInt {
    static const int Mod = MOD; unsigned x; ModInt() : x(0) { }
    ModInt(signed sig) { x = sig < 0 ? sig % MOD + MOD : sig % MOD; }
    ModInt(signed long long sig) { x = sig < 0 ? sig % MOD + MOD : sig % MOD; }
    int get() const { return (int)x; }
    ModInt &operator+=(ModInt that) { if ((x += that.x) >= MOD) x -= MOD; return *this; }
    ModInt &operator-=(ModInt that) { if ((x += MOD - that.x) >= MOD) x -= MOD; return *this; }
    ModInt &operator*=(ModInt that) { x = (unsigned long long)x * that.x % MOD; return *this; }
    ModInt &operator/=(ModInt that) { return *this *= that.inverse(); }
    ModInt operator+(ModInt that) const { return ModInt(*this) += that; }
    ModInt operator-(ModInt that) const { return ModInt(*this) -= that; }
    ModInt operator*(ModInt that) const { return ModInt(*this) *= that; }
    ModInt operator/(ModInt that) const { return ModInt(*this) /= that; }
    ModInt inverse() const { long long a = x, b = MOD, u = 1, v = 0;
        while (b) { long long t = a / b; a -= t * b; std::swap(a, b); u -= t * v; std::swap(u, v); }
        return ModInt(u); }
    bool operator==(ModInt that) const { return x == that.x; }
    bool operator!=(ModInt that) const { return x != that.x; }
    ModInt operator-() const { ModInt t; t.x = x == 0 ? 0 : Mod - x; return t; }
};
template<int MOD> ostream& operator<<(ostream& st, const ModInt<MOD> a) { st << a.get(); return st; };
template<int MOD> ModInt<MOD> operator^(ModInt<MOD> a, unsigned long long k) {
    ModInt<MOD> r = 1; while (k) { if (k & 1) r *= a; a *= a; k >>= 1; } return r; }
template<typename T, int FAC_MAX> struct Comb { vector<T> fac, ifac;
    Comb(){fac.resize(FAC_MAX,1);ifac.resize(FAC_MAX,1);rep(i,1,FAC_MAX)fac[i]=fac[i-1]*i;
        ifac[FAC_MAX-1]=T(1)/fac[FAC_MAX-1];rrep(i,FAC_MAX-2,1)ifac[i]=ifac[i+1]*T(i+1);}
    T aPb(int a, int b) { if (b < 0 || a < b) return T(0); return fac[a] * ifac[a - b]; }
    T aCb(int a, int b) { if (b < 0 || a < b) return T(0); return fac[a] * ifac[a - b] * ifac[b]; }
    T nHk(int n, int k) { if (n == 0 && k == 0) return T(1); if (n <= 0 || k < 0) return 0;
        return aCb(n + k - 1, k); } // nHk = (n+k-1)Ck : n is separator
    T pairCombination(int n) {if(n%2==1)return T(0);return fac[n]*ifac[n/2]/(T(2)^(n/2));}
    // combination of paris for n com.aCb(h+w-2,h-1);
}; 
//typedef ModInt<1000000007> mint;
typedef ModInt<998244353> mint; 
//typedef ModInt<1000000000> mint; 
Comb<mint, 2010101> com;
//vector dp(n+1,vector(n+1,vector<ll>(n+1,0)));
//vector dp(n+1,vector<ll>(n+1,0));
  std::random_device seed_gen;
  std::mt19937 engine(seed_gen());
string ye = "Yes"; string no = "No"; string draw = "Draw";

#endif // templete
//---------------------------------------------------------------------------------------------------
int dp[10001][101][101];
vector<ll>dx = {-1,0,1,0};
vector<ll>dy = {0,-1,0,1};

void _main() {
  ll n,v,sx,sy,gx,gy;
  cin >> n >> v >> sx >> sy >> gx >> gy;
  sx--;
  sy--;
  gx--;
  gy--;
  vector l(n,vector<int>(n));
  rep(i,0,n)rep(j,0,n)cin >> l[i][j];
  rep(i,0,v+1)rep(j,0,n+1)rep(k,0,n+1)dp[i][j][k] = inf;
  dp[v][sy][sx] = 0;
  queue<vector<ll>>q;
  q.push({v,sy,sx});
  int ans = inf;
  while(q.size()){
    vector<ll>vec = q.front();
    q.pop();
    int vv,y,x,c;
    vv = vec[0];
    y = vec[1];
    x = vec[2]; 
    c = dp[vv][y][x];
  rep(dir,0,4){
    int nx,ny,nv;
    nx = x + dx[dir];
    ny = y + dy[dir];
    if(nx < 0 || nx >= n || ny < 0 || ny >= n)continue;
    nv = vv - l[ny][nx];
    if(nv <= 0)continue;
    if(chmin(dp[nv][ny][nx],c+1)){
        q.push({nv,ny,nx});
        if(nx == gx && ny == gy){
            cout << c + 1 << endl;
            return;
        }
    }
  }
  }
  rep(i,0,v+1)chmin(ans,dp[i][gy][gx]);
  if(ans == inf)ans = -1;
  cout << ans << endl;
}
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