結果
問題 | No.2454 Former < Latter |
ユーザー |
|
提出日時 | 2023-09-01 22:47:12 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 267 ms / 2,000 ms |
コード長 | 2,258 bytes |
コンパイル時間 | 4,715 ms |
コンパイル使用メモリ | 252,804 KB |
最終ジャッジ日時 | 2025-02-16 17:05:53 |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 1 |
other | AC * 23 |
ソースコード
#include <bits/stdc++.h>#include <atcoder/all>using namespace std;using namespace atcoder;istream &operator>>(istream &is, modint &a) { long long v; is >> v; a = v; return is; }ostream &operator<<(ostream &os, const modint &a) { return os << a.val(); }istream &operator>>(istream &is, modint998244353 &a) { long long v; is >> v; a = v; return is; }ostream &operator<<(ostream &os, const modint998244353 &a) { return os << a.val(); }istream &operator>>(istream &is, modint1000000007 &a) { long long v; is >> v; a = v; return is; }ostream &operator<<(ostream &os, const modint1000000007 &a) { return os << a.val(); }typedef long long ll;typedef vector<vector<int>> Graph;typedef pair<int, int> pii;typedef pair<ll, ll> pll;#define rep(i,n) for (int i = 0;i < (int)(n); i++)#define all(x) x.begin(), x.end()#define rall(x) x.rbegin(), x.rend()#define my_sort(x) sort(x.begin(), x.end())#define my_max(x) *max_element(all(x))#define my_min(x) *min_element(all(x))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 = (1<<30) - 1;const ll LINF = (1LL<<62) - 1;const int MOD = 998244353;const int MOD2 = 1e9+7;const double PI = acos(-1);vector<int> di = {1,0,-1,0};vector<int> dj = {0,1,0,-1};#ifdef LOCAL# include <debug_print.hpp># define debug(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)#else# define debug(...) (static_cast<void>(0))#endifvoid solve(){int N; cin >> N;string S; cin >> S;auto z_arr = z_algorithm(S);debug(z_arr);int ans = 0;for(int i=1;i<N;i++){if(S[0] != S[i]){ans += (S[0] < S[i]);}else{if (z_arr[i] < i){if(i + z_arr[i] == N) continue;else if(S[z_arr[i]] < S[i + z_arr[i]])ans++;}else if (z_arr[i] == i){if (i + z_arr[i] < N)ans++;}else{ans++;}}debug(i, ans);}cout << ans << endl;}int main(){cin.tie(0);ios_base::sync_with_stdio(false);int T; cin >> T;while(T--)solve();}