結果
問題 | No.2328 Build Walls |
ユーザー | jupiro |
提出日時 | 2023-05-28 14:21:48 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 138 ms / 3,000 ms |
コード長 | 3,932 bytes |
コンパイル時間 | 2,434 ms |
コンパイル使用メモリ | 215,420 KB |
実行使用メモリ | 13,440 KB |
最終ジャッジ日時 | 2024-06-08 05:13:27 |
合計ジャッジ時間 | 5,736 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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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 | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 1 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 1 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 27 ms
8,576 KB |
testcase_14 | AC | 39 ms
6,016 KB |
testcase_15 | AC | 34 ms
5,888 KB |
testcase_16 | AC | 7 ms
5,376 KB |
testcase_17 | AC | 34 ms
6,656 KB |
testcase_18 | AC | 2 ms
5,376 KB |
testcase_19 | AC | 5 ms
5,376 KB |
testcase_20 | AC | 5 ms
5,376 KB |
testcase_21 | AC | 22 ms
8,192 KB |
testcase_22 | AC | 60 ms
7,168 KB |
testcase_23 | AC | 137 ms
13,440 KB |
testcase_24 | AC | 131 ms
13,440 KB |
testcase_25 | AC | 134 ms
13,184 KB |
testcase_26 | AC | 114 ms
13,440 KB |
testcase_27 | AC | 138 ms
13,312 KB |
testcase_28 | AC | 47 ms
13,440 KB |
testcase_29 | AC | 136 ms
13,440 KB |
testcase_30 | AC | 47 ms
13,312 KB |
testcase_31 | AC | 46 ms
13,312 KB |
testcase_32 | AC | 125 ms
13,440 KB |
testcase_33 | AC | 133 ms
13,312 KB |
testcase_34 | AC | 48 ms
13,440 KB |
testcase_35 | AC | 129 ms
13,312 KB |
testcase_36 | AC | 2 ms
5,376 KB |
ソースコード
#include <bits/stdc++.h> using std::cin; using std::cout; using std::endl; using ll = long long; std::mt19937 rnd(std::chrono::steady_clock::now().time_since_epoch().count()); template <class T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return 1; } return 0; } template <class T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return 1; } return 0; } const int inf = (int)1e9 + 7; const long long INF = 1LL << 62; template <int mod> struct ModInt { int x; ModInt() : x(0) {} ModInt(int64_t y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {} ModInt &operator+=(const ModInt &p) { if ((x += p.x) >= mod) x -= mod; return *this; } ModInt &operator-=(const ModInt &p) { if ((x += mod - p.x) >= mod) x -= mod; return *this; } ModInt &operator*=(const ModInt &p) { x = (int)(1LL * x * p.x % mod); return *this; } ModInt &operator/=(const ModInt &p) { *this *= p.inverse(); return *this; } ModInt operator-() const { return ModInt(-x); } ModInt operator+(const ModInt &p) const { return ModInt(*this) += p; } ModInt operator-(const ModInt &p) const { return ModInt(*this) -= p; } ModInt operator*(const ModInt &p) const { return ModInt(*this) *= p; } ModInt operator/(const ModInt &p) const { return ModInt(*this) /= p; } bool operator==(const ModInt &p) const { return x == p.x; } bool operator!=(const ModInt &p) const { return x != p.x; } ModInt inverse() const { int a = x, b = mod, u = 1, v = 0, t; while (b > 0) { t = a / b; std::swap(a -= t * b, b); std::swap(u -= t * v, v); } return ModInt(u); } ModInt pow(int64_t n) const { ModInt ret(1), mul(x); while (n > 0) { if (n & 1) ret *= mul; mul *= mul; n >>= 1; } return ret; } friend std::ostream &operator<<(std::ostream &os, const ModInt &p) { return os << p.x; } friend std::istream &operator>>(std::istream &is, ModInt &a) { int64_t t; is >> t; a = ModInt<mod>(t); return (is); } static int get_mod() { return mod; } }; constexpr int mod = (int)1e9 + 7; using mint = ModInt<mod>; void solve() { int H, W; cin >> H >> W; std::vector a(H, std::vector<ll>(W)), d(H, std::vector<ll>(W, INF)); for (int i = 1; i < H - 1; i++) { for (int j = 0; j < W; j++) { cin >> a[i][j]; } } using T = std::tuple<ll, int, int>; std::priority_queue<T, std::vector<T>, std::greater<>> pq; for (int i = 1; i < H - 1; i++) { if (a[i][0] == -1) continue; d[i][0] = a[i][0]; pq.emplace(d[i][0], i, 0); } const int dr[] = {0, 1, 0, -1, 1, 1, -1, -1}; const int dc[] = {1, 0, -1, 0, 1, -1, 1, -1}; while (not pq.empty()) { auto [dist, r, c] = pq.top(); pq.pop(); if (dist > d[r][c]) continue; for (int i = 0; i < 8; i++) { const int nr = r + dr[i]; const int nc = c + dc[i]; if (nr <= 0 or nr >= H - 1 or nc < 0 or nc > W - 1 or a[nr][nc] == -1) continue; if (chmin(d[nr][nc], d[r][c] + a[nr][nc])) { pq.emplace(d[nr][nc], nr, nc); } } } ll res = INF; for (int i = 1; i < H - 1; i++) { chmin(res, d[i][W - 1]); } if (res == INF) res = -1; cout << res << "\n"; } int main() { std::cin.tie(nullptr); std::ios::sync_with_stdio(false); int I_love_KKT89 = 1; // cin >> I_love_KKT89; for (int Case = 1; Case <= I_love_KKT89; ++Case) { // cout << "Case #" << Case << ": "; solve(); } return 0; }