結果
| 問題 |
No.1859 ><<<
|
| ユーザー |
|
| 提出日時 | 2025-11-05 16:26:32 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 43 ms / 2,000 ms |
| コード長 | 2,948 bytes |
| コンパイル時間 | 3,138 ms |
| コンパイル使用メモリ | 281,880 KB |
| 実行使用メモリ | 11,476 KB |
| 最終ジャッジ日時 | 2025-11-05 16:26:41 |
| 合計ジャッジ時間 | 8,346 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 41 |
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 repi(i, a, b) for (int i = (a); i < (b); ++i)
#define all(x) (x).begin(), (x).end()
#define fore(i, a) for(auto &i:a)
using ll = long long;
using int64 = long long;
#define DEBUG(x) cerr << #x << ": "; for (auto _ : x) cerr << _ << " "; cerr << endl;
const int64 infll = (1LL << 62) - 1;
const int inf = (1 << 30) - 1;
struct IoSetup {
IoSetup() {
cin.tie(nullptr);
ios::sync_with_stdio(false);
cout << fixed << setprecision(10);
cerr << fixed << setprecision(10);
}
} iosetup;
template <typename T1, typename T2>
ostream& operator<<(ostream& os, const pair<T1, T2>& p) {
os << p.first << " " << p.second;
return os;
}
template <typename T1, typename T2>
istream& operator>>(istream& is, pair<T1, T2>& p) {
is >> p.first >> p.second;
return is;
}
template <typename T>
ostream& operator<<(ostream& os, const vector<T>& v) {
for (int i = 0; i < (int)v.size(); i++) {
os << v[i] << (i + 1 != v.size() ? " " : "");
}
return os;
}
template <typename T>
istream& operator>>(istream& is, vector<T>& v) {
for (T& in : v) is >> in;
return is;
}
template <typename T1, typename T2>
inline bool chmax(T1& a, T2 b) {
return a < b && (a = b, true);
}
template <typename T1, typename T2>
inline bool chmin(T1& a, T2 b) {
return a > b && (a = b, true);
}
template <typename T = int64>
vector<T> make_v(size_t a) {
return vector<T>(a);
}
template <typename T, typename... Ts>
auto make_v(size_t a, Ts... ts) {
return vector<decltype(make_v<T>(ts...))>(a, make_v<T>(ts...));
}
template <typename T, typename V>
typename enable_if<is_class<T>::value == 0>::type fill_v(T& t, const V& v) {
t = v;
}
template <typename T, typename V>
typename enable_if<is_class<T>::value != 0>::type fill_v(T& t, const V& v) {
for (auto& e : t) fill_v(e, v);
}
template <typename F>
struct FixPoint : F {
explicit FixPoint(F&& f) : F(std::forward<F>(f)) {}
template <typename... Args>
decltype(auto) operator()(Args&&... args) const {
return F::operator()(*this, std::forward<Args>(args)...);
}
};
template <typename F>
inline decltype(auto) MFP(F&& f) {
return FixPoint<F>{std::forward<F>(f)};
}
//ref -> https://qiita.com/t_fuki/items/e682238dda6ad832ce05
//check -> https://judge.yosupo.jp/problem/zalgorithm
vector<int> z_algorithm(string s){
vector<int> z(s.size(), 0);
z[0] = s.size();
int l=0,r=0;
repi(i, 1, s.size()){
if(z[i-l] < r-i){
z[i] = z[i-l];
}
else{
r = max(r, i);
while(r < s.size() && s[r] == s[r-i])r++;
z[i] = r-i;
l = i;
}
}
return z;
}
int main(){
ll n;cin >> n;
string t(n, '*');
vector<ll> a(n);
rep(i, n)cin >> a[i];
rep(i, n-1){
t[i] = (a[i+1]>a[i]?'<':'>');
}
t[n-1] = (a[0] > a[n-1]?'<':'>');
string s;cin >> s;
string p = s+'&'+t+t;
auto z = z_algorithm(p);
ll ans = -1;
rep(i, n){
if(z[i+n] == n-1){
ans = i;
break;
}
}
cout << ans << "\n";
}