結果
問題 | No.20 砂漠のオアシス |
ユーザー | daleksprinter |
提出日時 | 2019-03-17 17:22:09 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,154 bytes |
コンパイル時間 | 1,485 ms |
コンパイル使用メモリ | 180,424 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-07-07 04:49:12 |
合計ジャッジ時間 | 2,290 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
(要ログイン)
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 | 2 ms
5,248 KB |
testcase_01 | WA | - |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 3 ms
5,376 KB |
testcase_04 | AC | 3 ms
5,376 KB |
testcase_05 | AC | 14 ms
5,376 KB |
testcase_06 | AC | 16 ms
5,376 KB |
testcase_07 | AC | 15 ms
5,376 KB |
testcase_08 | AC | 15 ms
5,376 KB |
testcase_09 | WA | - |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | AC | 3 ms
5,376 KB |
testcase_15 | AC | 2 ms
5,376 KB |
testcase_16 | AC | 4 ms
5,376 KB |
testcase_17 | WA | - |
testcase_18 | AC | 4 ms
5,376 KB |
testcase_19 | WA | - |
testcase_20 | AC | 2 ms
5,376 KB |
ソースコード
#include "bits/stdc++.h" using namespace std; /* macro */ #define rep(i,a,b) for(int i=a;i<b;i++) #define revrep(i,a,b) for(int i = a; i > b; i--) #define int long long #define exist(s,e) ((s).find(e)!=(s).end()) #define all(v) (v).begin(), (v).end() #define each(s,itr) for(auto (itr) = s.begin(); (itr) != s.end(); (itr)++) #define sum(v) accumulate(all(v), (0LL)) #define isin(a, b, c) (b <= a && a <= c) #define println cout << "\n"; #define sz(v) (int)v.size() #define bin(x) static_cast<bitset<16> >(x) /* alias */ template<class T> using vec = vector<T>; typedef vector<int> vi; typedef pair<int, int> pi; typedef tuple<int, int, int> ti; typedef map<int, int> mi; typedef set<int> si; /* constant */ const int inf = 1LL << 62; const int mod = 1e9 + 7; const int dx[8]={1,0,-1,0,-1,1,-1,1}; const int dy[8]={0,1,0,-1,-1,-1,1,1}; const string alphabet = "abcdefghijklmnopqrstuvwxyz"; /* io_method */ int input(){int tmp;cin >> tmp;return tmp;} string raw_input(){string tmp;cin >> tmp;return tmp;} template<class T> void printx(T n){cout << n;} template<class T, class U> void printx(pair<T, U> p){cout << "(" << p.first << "," << p.second << ")";} template<class T, class U, class V> void printx(tuple<T, U, V> t){cout << "{" << get<0>(t) << "," << get<1>(t) <<"," << get<2>(t) << "}" << endl;} template<class T> void printx(vector<T> v){cout << "{";rep(i,0,v.size()){printx(v[i]);if(i != v.size()-1)printx(",");}cout << "}";} template<class T> void print(T n){printx(n);cout << endl;} template<class T> void print(set<T> s){cout << "{";each(s, e){if(e != s.begin()) printx(",");printx(*e);}cout << "}" << endl;} template<class T, class U> void print(map<T, U> mp){cout << "{";each(mp, e){cout << "(" << e -> first << "," << e -> second << ")";}cout << "}" << endl;} template<class T> void printans(vec<T> v){rep(i,0,sz(v)){cout << v[i] << (i == sz(v) - 1 ? "" : " ");}cout << endl;} /* general_method */ 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<class T>T cut(T &a, int l, int r){return T(a.begin()+l, a.begin()+r);} /* main */ int n, v, ox, oy; int arr[200][200]; void in(){ cin >> n >> v >> ox >> oy; rep(i,0,n){ rep(j,0,n){ cin >> arr[i][j]; } } } int getid(int x, int y){ return y * n + x; } void solve(){ vec<vi> dist(n, vi(n, inf)); dist[0][0] = 0; priority_queue<pi, vec<pi>, greater<pi>> que; que.push(pi(0, 0)); while(not que.empty()){ int x = que.top().second % n; int y = que.top().second / n; int d = que.top().first; que.pop(); if(dist[y][x] < d) continue; rep(i,0,4){ int tx = x + dx[i]; int ty = y + dy[i]; if(!(isin(tx, 0, n - 1) && isin(ty, 0, n - 1))) continue; if(chmin(dist[ty][tx], dist[y][x] + arr[ty][tx])){ que.push(pi(dist[ty][tx], ty * n + tx)); } } } vec<vi> dist2(n, vi(n, inf)); dist2[n - 1][n - 1] = 0; priority_queue<pi, vec<pi>, greater<pi>> que2; que2.push(pi(0, getid(n - 1, n - 1))); while(not que2.empty()){ int x = que2.top().second % n; int y = que2.top().second / n; int d = que2.top().first; que2.pop(); if(dist2[y][x] < d) continue; rep(i,0,4){ int tx = x + dx[i]; int ty = y + dy[i]; if(!(isin(tx, 0, n - 1) && isin(ty, 0, n - 1))) continue; if(chmin(dist2[ty][tx], dist2[y][x] + arr[ty][tx])){ que2.push(pi(dist2[ty][tx], ty * n + tx)); } } } if(dist[n - 1][n - 1] < v){ print("YES"); }else if(ox != 0 && dist[oy - 1][ox - 1] < v){ int rest = v - (dist[oy - 1][ox - 1] + arr[n - 1][n - 1] - dist[oy-1][ox-1]); rest *= 2; cout << (dist2[oy - 1][ox - 1] < rest ? "YES" : "NO") << endl; }else{ cout << "NO" << endl; } } signed main(){ cin.tie(0); ios::sync_with_stdio(false); in(); solve(); }