結果
問題 | No.871 かえるのうた |
ユーザー | hitonanode |
提出日時 | 2019-08-30 21:27:15 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 35 ms / 2,000 ms |
コード長 | 3,623 bytes |
コンパイル時間 | 1,616 ms |
コンパイル使用メモリ | 169,320 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-11-30 10:44:46 |
合計ジャッジ時間 | 4,010 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 2 ms
5,248 KB |
testcase_04 | AC | 2 ms
5,248 KB |
testcase_05 | AC | 2 ms
5,248 KB |
testcase_06 | AC | 2 ms
5,248 KB |
testcase_07 | AC | 2 ms
5,248 KB |
testcase_08 | AC | 3 ms
5,248 KB |
testcase_09 | AC | 3 ms
5,248 KB |
testcase_10 | AC | 2 ms
5,248 KB |
testcase_11 | AC | 2 ms
5,248 KB |
testcase_12 | AC | 6 ms
5,248 KB |
testcase_13 | AC | 3 ms
5,248 KB |
testcase_14 | AC | 33 ms
5,248 KB |
testcase_15 | AC | 33 ms
5,248 KB |
testcase_16 | AC | 35 ms
5,248 KB |
testcase_17 | AC | 30 ms
5,248 KB |
testcase_18 | AC | 7 ms
5,248 KB |
testcase_19 | AC | 34 ms
5,248 KB |
testcase_20 | AC | 5 ms
5,248 KB |
testcase_21 | AC | 14 ms
5,248 KB |
testcase_22 | AC | 2 ms
5,248 KB |
testcase_23 | AC | 2 ms
5,248 KB |
testcase_24 | AC | 2 ms
5,248 KB |
testcase_25 | AC | 3 ms
5,248 KB |
testcase_26 | AC | 4 ms
5,248 KB |
testcase_27 | AC | 4 ms
5,248 KB |
testcase_28 | AC | 2 ms
5,248 KB |
testcase_29 | AC | 13 ms
5,248 KB |
testcase_30 | AC | 20 ms
5,248 KB |
testcase_31 | AC | 3 ms
5,248 KB |
testcase_32 | AC | 17 ms
5,248 KB |
testcase_33 | AC | 26 ms
5,248 KB |
testcase_34 | AC | 7 ms
5,248 KB |
testcase_35 | AC | 17 ms
5,248 KB |
testcase_36 | AC | 22 ms
5,248 KB |
testcase_37 | AC | 14 ms
5,248 KB |
testcase_38 | AC | 29 ms
5,248 KB |
testcase_39 | AC | 29 ms
5,248 KB |
testcase_40 | AC | 12 ms
5,248 KB |
testcase_41 | AC | 2 ms
5,248 KB |
testcase_42 | AC | 12 ms
5,248 KB |
testcase_43 | AC | 2 ms
5,248 KB |
testcase_44 | AC | 3 ms
5,248 KB |
testcase_45 | AC | 3 ms
5,248 KB |
testcase_46 | AC | 2 ms
5,248 KB |
testcase_47 | AC | 2 ms
5,248 KB |
testcase_48 | AC | 2 ms
5,248 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using lint = long long int; using pint = pair<int, int>; using plint = pair<lint, lint>; struct fast_ios { fast_ios(){ cin.tie(0); ios::sync_with_stdio(false); cout << fixed << setprecision(20); }; } fast_ios_; #define ALL(x) (x).begin(), (x).end() #define SZ(x) ((lint)(x).size()) #define POW2(n) (1LL << (n)) #define FOR(i, begin, end) for(int i=(begin),i##_end_=(end);i<i##_end_;i++) #define IFOR(i, begin, end) for(int i=(end)-1,i##_begin_=(begin);i>=i##_begin_;i--) #define REP(i, n) FOR(i,0,n) #define IREP(i, n) IFOR(i,0,n) template<typename T> void ndarray(vector<T> &vec, int len) { vec.resize(len); } template<typename T, typename... Args> void ndarray(vector<T> &vec, int len, Args... args) { vec.resize(len); for (auto &v : vec) ndarray(v, args...); } template<typename T> bool mmax(T &m, const T q) { if (m < q) {m = q; return true;} else return false; } template<typename T> bool mmin(T &m, const T q) { if (m > q) {m = q; return true;} else return false; } template<typename T1, typename T2> pair<T1, T2> operator+(const pair<T1, T2> &l, const pair<T1, T2> &r) { return make_pair(l.first + r.first, l.second + r.second); } template<typename T1, typename T2> pair<T1, T2> operator-(const pair<T1, T2> &l, const pair<T1, T2> &r) { return make_pair(l.first - r.first, l.second - r.second); } template<typename T> istream &operator>>(istream &is, vector<T> &vec){ for (auto &v : vec) is >> v; return is; } ///// This part below is only for debug, not used ///// template<typename T> ostream &operator<<(ostream &os, const vector<T> &vec){ os << "["; for (auto v : vec) os << v << ","; os << "]"; return os; } template<typename T> ostream &operator<<(ostream &os, const deque<T> &vec){ os << "deq["; for (auto v : vec) os << v << ","; os << "]"; return os; } template<typename T> ostream &operator<<(ostream &os, const set<T> &vec){ os << "{"; for (auto v : vec) os << v << ","; os << "}"; return os; } template<typename T> ostream &operator<<(ostream &os, const unordered_set<T> &vec){ os << "{"; for (auto v : vec) os << v << ","; os << "}"; return os; } template<typename T> ostream &operator<<(ostream &os, const multiset<T> &vec){ os << "{"; for (auto v : vec) os << v << ","; os << "}"; return os; } template<typename T> ostream &operator<<(ostream &os, const unordered_multiset<T> &vec){ os << "{"; for (auto v : vec) os << v << ","; os << "}"; return os; } template<typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &pa){ os << "(" << pa.first << "," << pa.second << ")"; return os; } template<typename TK, typename TV> ostream &operator<<(ostream &os, const map<TK, TV> &mp){ os << "{"; for (auto v : mp) os << v.first << "=>" << v.second << ","; os << "}"; return os; } template<typename TK, typename TV> ostream &operator<<(ostream &os, const unordered_map<TK, TV> &mp){ os << "{"; for (auto v : mp) os << v.first << "=>" << v.second << ","; os << "}"; return os; } #define dbg(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ") " << __FILE__ << endl; ///// END ///// int main() { int N, K; cin >> N >> K; vector<lint> X(N), A(N); cin >> X >> A; K--; int l = K, r = K; lint lo = X[l] - A[l], hi = X[r] + A[r]; while (l >= 0 or r < N) { if (l >= 0 and lo <= X[l]) { mmin(lo, X[l] - A[l]); mmax(hi, X[l] + A[l]); l--; } else if (r < N and hi >= X[r]) { mmax(hi, X[r] + A[r]); mmin(lo, X[r] - A[r]); r++; } else break; } cout << r - l - 1 << endl; }