結果
問題 | No.2064 Smallest Sequence on Grid |
ユーザー | T101010101 |
提出日時 | 2022-12-31 20:24:24 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 4,289 bytes |
コンパイル時間 | 3,089 ms |
コンパイル使用メモリ | 274,540 KB |
実行使用メモリ | 127,488 KB |
最終ジャッジ日時 | 2024-11-26 20:03:25 |
合計ジャッジ時間 | 45,778 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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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 | 1 ms
10,496 KB |
testcase_01 | AC | 2 ms
122,368 KB |
testcase_02 | AC | 2 ms
10,496 KB |
testcase_03 | AC | 1 ms
10,496 KB |
testcase_04 | AC | 1 ms
10,496 KB |
testcase_05 | AC | 2 ms
121,984 KB |
testcase_06 | AC | 1 ms
10,496 KB |
testcase_07 | AC | 2 ms
125,696 KB |
testcase_08 | AC | 2 ms
10,496 KB |
testcase_09 | AC | 1 ms
127,488 KB |
testcase_10 | AC | 2 ms
10,496 KB |
testcase_11 | AC | 2 ms
111,232 KB |
testcase_12 | AC | 2 ms
10,496 KB |
testcase_13 | AC | 2 ms
5,248 KB |
testcase_14 | AC | 2 ms
5,248 KB |
testcase_15 | AC | 2 ms
5,248 KB |
testcase_16 | AC | 3 ms
5,248 KB |
testcase_17 | AC | 268 ms
125,696 KB |
testcase_18 | AC | 268 ms
124,928 KB |
testcase_19 | AC | 280 ms
125,312 KB |
testcase_20 | TLE | - |
testcase_21 | TLE | - |
testcase_22 | TLE | - |
testcase_23 | TLE | - |
testcase_24 | TLE | - |
testcase_25 | TLE | - |
testcase_26 | TLE | - |
testcase_27 | TLE | - |
testcase_28 | AC | 191 ms
116,480 KB |
testcase_29 | TLE | - |
testcase_30 | TLE | - |
ソースコード
#pragma region Macros #include <bits/extc++.h> using namespace std; using namespace __gnu_pbds; // using namespace __gnu_cxx; #define TO_STRING(var) # var #define pb emplace_back #define int ll #define endl '\n' using ll = long long; using ld = long double; const ld PI = acos(-1); const ld EPS = 1e-10; const int INF = 1 << 30; const ll INFL = 1LL << 61; // const int MOD = 998244353; const int MOD = 1000000007; __attribute__((constructor)) void constructor() { ios::sync_with_stdio(false); cin.tie(nullptr); cout << fixed << setprecision(15); } template<int mod> class modint{ public: int val = 0; modint(int x = 0) { while (x < 0) x += mod; val = x % mod; } modint(const modint &r) { val = r.val; } modint operator -() { return modint(-val); } modint operator +(const modint &r) { return modint(*this) += r; } modint operator -(const modint &r) { return modint(*this) -= r; } modint operator *(const modint &r) { return modint(*this) *= r; } modint operator /(const modint &r) { return modint(*this) /= r; } modint &operator +=(const modint &r) { val += r.val; if (val >= mod) val -= mod; return *this; } modint &operator -=(const modint &r) { if (val < r.val) val += mod; val -= r.val; return *this; } modint &operator *=(const modint &r) { val = val * r.val % mod; return *this; } modint &operator /=(const modint &r) { int a = r.val, b = mod, u = 1, v = 0; while (b) { int t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } val = val * u % mod; if (val < 0) val += mod; return *this; } bool operator ==(const modint& r) { return this -> val == r.val; } bool operator <(const modint& r) { return this -> val < r.val; } bool operator !=(const modint& r) { return this -> val != r.val; } }; using mint = modint<MOD>; istream &operator >>(istream &is, mint& x) { int t; is >> t; x = t; return (is); } ostream &operator <<(ostream &os, const mint& x) { return os << x.val; } mint modpow(const mint &a, int n) { if (n == 0) return 1; mint t = modpow(a, n / 2); t = t * t; if (n & 1) t = t * a; return t; } int modpow(int x, int n, int mod) { int ret = 1; while (n > 0) { if (n % 2 == 1) ret = ret * x % mod; x = x * x % mod; n /= 2; } return ret; } int ceil(int x, int y) { return (x > 0 ? (x + y - 1) / y : x / y); } #pragma endregion signed main() { int H, W; cin >> H >> W; vector<vector<char>> S(H,vector<char>(W)); for (int i = 0; i < H; i++) { for (int j = 0; j < W; j++) { cin >> S[i][j]; } } vector<vector<int>> ok(H,vector<int>(W)); ok[0][0] = true; for (int i = 0; i < H; i++) { for (int j = 0; j < W; j++) { if (ok[i][j] == false) continue; if (i == H - 1 && j == W - 1) { ok[i][j] = true; } else if (i == H - 1) { ok[i][j + 1] = true; } else if (j == W - 1) { ok[i + 1][j] = true; } else { if (S[i + 1][j] < S[i][j + 1]) { ok[i + 1][j] = true; } else if (S[i + 1][j] > S[i][j + 1]) { ok[i][j + 1] = true; } else { ok[i][j + 1] = true; ok[i + 1][j] = true; } } } } vector<string> dp(W); vector<string> dp2(W); dp[0] = S[0][0]; for (int i = 0; i < H; i++) { swap(dp, dp2); for (int j = 0; j < W; j++) { if (ok[i][j] == false) continue; if (i == 0 && j == 0) { dp[j] = dp2[j]; } else if (i == 0) { dp[j] = dp[j - 1] + S[i][j]; } else if (j == 0) { dp[j] = dp2[j] + S[i][j]; } else { if (ok[i - 1][j] == false) dp[j] = dp[j - 1] + S[i][j]; else if (ok[i][j - 1] == false) dp[j] = dp2[j] + S[i][j]; else dp[j] = min(dp2[j], dp[j - 1]) + S[i][j]; } } } cout << dp[W - 1] << endl; }