結果
問題 | No.1405 ジグザグロボット |
ユーザー | SSRS |
提出日時 | 2020-12-11 22:50:18 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,419 bytes |
コンパイル時間 | 2,047 ms |
コンパイル使用メモリ | 186,424 KB |
実行使用メモリ | 42,400 KB |
最終ジャッジ日時 | 2024-09-16 23:31:25 |
合計ジャッジ時間 | 26,801 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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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
6,816 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | AC | 250 ms
6,940 KB |
testcase_17 | AC | 254 ms
6,944 KB |
testcase_18 | AC | 267 ms
6,940 KB |
testcase_19 | WA | - |
testcase_20 | AC | 266 ms
6,940 KB |
testcase_21 | AC | 308 ms
6,940 KB |
testcase_22 | WA | - |
testcase_23 | AC | 289 ms
6,940 KB |
testcase_24 | AC | 286 ms
6,940 KB |
testcase_25 | AC | 193 ms
6,944 KB |
testcase_26 | AC | 242 ms
6,944 KB |
testcase_27 | AC | 333 ms
7,168 KB |
testcase_28 | AC | 305 ms
7,040 KB |
testcase_29 | AC | 275 ms
6,944 KB |
testcase_30 | AC | 367 ms
7,552 KB |
testcase_31 | TLE | - |
testcase_32 | TLE | - |
testcase_33 | AC | 709 ms
9,728 KB |
testcase_34 | AC | 2 ms
6,940 KB |
testcase_35 | TLE | - |
testcase_36 | -- | - |
testcase_37 | -- | - |
ソースコード
#include <bits/stdc++.h> using namespace std; const int INF = 1000000; int main(){ int N, X, Y; cin >> N >> X >> Y; string S; cin >> S; vector<string> T(1); for (int i = 0; i < N; i++){ if (S[i] == 'S'){ T.push_back(""); } else { T.back() += S[i]; } } int M = T.size(); if (Y >= M){ cout << -1 << endl; } else { vector<vector<int>> a(M + 1, vector<int>(M + 1, 0)); for (int i = 0; i < M; i++){ for (int j = i + 1; j <= M; j++){ for (int k = i; k < j; k++){ int sz = T[k].size(); for (int l = 0; l < sz; l++){ if (T[k][l] == 'L'){ a[i][j]--; } else { a[i][j]++; } a[i][j] = max(a[i][j], 0); } } } } vector<vector<int>> dp(Y + 2, vector<int>(M + 1, -INF)); dp[0][0] = 0; for (int i = 0; i <= Y; i++){ for (int j = 0; j < M; j++){ for (int k = j + 1; k <= M; k++){ dp[i + 1][k] = max(dp[i + 1][k], dp[i][j] + a[j][k]); } } } if (dp[Y + 1][M] < X){ cout << -1 << endl; } else { /* for (int i = 0; i < Y + 2; i++){ for (int j = 0; j <= M; j++){ cout << dp[i][j] << ' '; } cout << endl; } */ vector<int> P(Y + 2); P[Y + 1] = M; for (int i = Y; i >= 0; i--){ for (int j = 0; j < P[i + 1]; j++){ if (dp[i + 1][P[i + 1]] == dp[i][j] + a[j][P[i + 1]]){ P[i] = j; break; } } } /* for (int i = 0; i < Y + 2; i++){ cout << P[i] << ' '; } cout << endl; */ vector<string> T2(Y + 1); for (int i = 0; i < Y + 1; i++){ for (int j = P[i]; j < P[i + 1]; j++){ T2[i] += T[j]; if (j < P[i + 1] - 1){ T2[i] += 'S'; } } } /* for (int i = 0; i <= Y; i++){ cout << T2[i] << ' '; } cout << endl; */ int D = dp[Y + 1][M] - X; vector<pair<int, int>> obs; int cx = 0; for (int i = 0; i <= Y; i++){ int sz = T2[i].size(); int x2 = cx; int mx = x2; int left = -INF; int right = INF; for (int j = 0; j < sz; j++){ if (T2[i][j] == 'L'){ x2--; if (x2 < cx){ x2 = cx; left = cx; } } if (T2[i][j] == 'R'){ x2++; mx = max(mx, x2); } } if (left != -INF){ obs.push_back(make_pair(left - 1, i)); } if (x2 > X){ right = mx - (x2 - X); obs.push_back(make_pair(right + 1, i)); x2 = X; } int x3 = cx; for (int j = 0; j < sz; j++){ if (T2[i][j] == 'L'){ x3--; x3 = max(x3, left); } if (T2[i][j] == 'R'){ x3++; x3 = min(x3, right); } if (T2[i][j] == 'S'){ obs.push_back(make_pair(x3, i + 1)); } } cx = x2; } sort(obs.begin(), obs.end()); obs.erase(unique(obs.begin(), obs.end()), obs.end()); int K = obs.size(); cout << K << endl; for (int i = 0; i < K; i++){ cout << obs[i].first << ' ' << obs[i].second << endl; } } } }