結果
問題 |
No.1283 Extra Fee
|
ユーザー |
![]() |
提出日時 | 2020-11-21 12:24:30 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 423 ms / 2,000 ms |
コード長 | 2,138 bytes |
コンパイル時間 | 1,844 ms |
コンパイル使用メモリ | 183,148 KB |
実行使用メモリ | 22,152 KB |
最終ジャッジ日時 | 2024-11-16 07:13:43 |
合計ジャッジ時間 | 8,146 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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ファイルパターン | 結果 |
---|---|
other | AC * 30 |
コンパイルメッセージ
main.cpp: In function 'int main()': main.cpp:47:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' [-Wc++17-extensions] 47 | auto [cost, pp] = que.top(); | ^ main.cpp:49:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' [-Wc++17-extensions] 49 | auto [p, skipped] = pp; | ^ main.cpp:50:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' [-Wc++17-extensions] 50 | auto [x, y] = p; | ^
ソースコード
#include <bits/stdc++.h> using namespace std; #define rep(i, n) for(int(i) = 0; (i) < (n); (i)++) #define FOR(i, m, n) for(int(i) = (m); (i) < (n); (i)++) #define All(v) (v).begin(), (v).end() #define pb push_back #define MP(a, b) make_pair((a), (b)) template <class T> vector<T> make_vec(size_t a, T val) { return vector<T>(a, val); } template <class... Ts> auto make_vec(size_t a, Ts... ts) { return vector<decltype(make_vec(ts...))>(a, make_vec(ts...)); } using ll = long long; using pii = pair<int, int>; using pll = pair<ll, ll>; using Graph = vector<vector<int>>; template <typename T> struct edge { int to; T cost; edge(int t, T c) : to(t), cost(c) {} }; template <typename T> using WGraph = vector<vector<edge<T>>>; const int INF = 1 << 30; const ll LINF = 1LL << 60; const int MOD = 1e9 + 7; const int dx[] = {0, -1, 0, 1}; const int dy[] = {1, 0, -1, 0}; int main() { int N, M; cin >> N >> M; auto dist = make_vec(N, N, 2, LINF); auto check = make_vec(N, N, 0LL); rep(i, M) { ll h, w, c; cin >> h >> w >> c; h--, w--; check[h][w] = c; } using State = pair<ll, pair<pii, int>>; priority_queue<State, vector<State>, greater<State>> que; que.push({0LL, {{0, 0}, 0}}); dist[0][0][0] = 0; while(!que.empty()) { auto [cost, pp] = que.top(); que.pop(); auto [p, skipped] = pp; auto [x, y] = p; rep(i, 4) { int nx = x + dx[i], ny = y + dy[i]; if(nx < 0 || nx >= N || ny < 0 || ny >= N) continue; if(skipped == 0) { if(check[ny][nx] && (dist[ny][nx][0] > cost + 1)) { dist[ny][nx][1] = cost + 1 + check[ny][nx]; que.push({cost + 1, {{nx, ny}, 1}}); } } if(dist[ny][nx][skipped] > cost + 1 + check[ny][nx]) { dist[ny][nx][skipped] = cost + 1 + check[ny][nx]; que.push({cost + 1 + check[ny][nx], {{nx, ny}, skipped}}); } } } cout << min(dist[N - 1][N - 1][1], dist[N - 1][N - 1][0]) << endl; }