結果
問題 | No.1848 Long Prefixes |
ユーザー | leaf_1415 |
提出日時 | 2022-02-18 23:51:34 |
言語 | C++11 (gcc 11.4.0) |
結果 |
AC
|
実行時間 | 39 ms / 2,000 ms |
コード長 | 9,016 bytes |
コンパイル時間 | 1,574 ms |
コンパイル使用メモリ | 110,620 KB |
実行使用メモリ | 14,356 KB |
最終ジャッジ日時 | 2024-06-29 09:56:55 |
合計ジャッジ時間 | 3,258 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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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 | 39 ms
14,300 KB |
testcase_01 | AC | 24 ms
14,356 KB |
testcase_02 | AC | 34 ms
14,300 KB |
testcase_03 | AC | 35 ms
14,248 KB |
testcase_04 | AC | 25 ms
14,252 KB |
testcase_05 | AC | 37 ms
13,692 KB |
testcase_06 | AC | 35 ms
13,340 KB |
testcase_07 | AC | 24 ms
13,860 KB |
testcase_08 | AC | 35 ms
13,468 KB |
testcase_09 | AC | 36 ms
13,760 KB |
testcase_10 | AC | 26 ms
14,088 KB |
testcase_11 | AC | 36 ms
14,040 KB |
testcase_12 | AC | 33 ms
13,388 KB |
testcase_13 | AC | 24 ms
13,688 KB |
testcase_14 | AC | 34 ms
13,944 KB |
testcase_15 | AC | 2 ms
5,376 KB |
testcase_16 | AC | 2 ms
5,376 KB |
testcase_17 | AC | 2 ms
5,376 KB |
testcase_18 | AC | 2 ms
5,376 KB |
testcase_19 | AC | 2 ms
5,376 KB |
testcase_20 | AC | 2 ms
5,376 KB |
testcase_21 | AC | 1 ms
5,376 KB |
testcase_22 | AC | 2 ms
5,376 KB |
testcase_23 | AC | 2 ms
5,376 KB |
testcase_24 | AC | 2 ms
5,376 KB |
testcase_25 | AC | 2 ms
5,376 KB |
testcase_26 | AC | 2 ms
5,376 KB |
testcase_27 | AC | 2 ms
5,376 KB |
testcase_28 | AC | 2 ms
5,376 KB |
testcase_29 | AC | 2 ms
5,376 KB |
testcase_30 | AC | 2 ms
5,376 KB |
testcase_31 | AC | 1 ms
5,376 KB |
testcase_32 | AC | 2 ms
5,376 KB |
testcase_33 | AC | 17 ms
7,876 KB |
testcase_34 | AC | 22 ms
11,364 KB |
testcase_35 | AC | 9 ms
5,376 KB |
testcase_36 | AC | 15 ms
7,556 KB |
testcase_37 | AC | 18 ms
9,916 KB |
testcase_38 | AC | 20 ms
9,128 KB |
testcase_39 | AC | 16 ms
7,660 KB |
ソースコード
#include <iostream>#include <iomanip>#include <cstdio>#include <cmath>#include <ctime>#include <cstdlib>#include <cassert>#include <vector>#include <list>#include <stack>#include <queue>#include <deque>#include <map>#include <set>#include <bitset>#include <string>#include <algorithm>#include <utility>#include <complex>#include <array>#include <unordered_set>#include <unordered_map>#define rep(x, s, t) for(ll x = (s); (x) <= (t); (x)++)#define per(x, s, t) for(ll x = (s); (x) >= (t); (x)--)#define reps(x, s) for(ll x = 0; (x) < (ll)(s).size(); (x)++)#define chmin(x, y) (x) = min((x), (y))#define chmax(x, y) (x) = max((x), (y))#define sz(x) ((ll)(x).size())#define all(x) (x).begin(),(x).end()#define outl(...) dump_func(__VA_ARGS__)#define outf(x) cout << fixed << setprecision(16) << (x) << endl#define pb push_back#define fi first#define se second#define inf 2e18#define eps 1e-9const double PI = 3.1415926535897932384626433;using namespace std;typedef long long ll;typedef unsigned long long ull;typedef pair<ll, ll> P;struct edge{ll to, cost;edge(){}edge(ll a, ll b){ to = a, cost = b;}};const int dx[] = {1, 0, -1, 0}, dy[] = {0, -1, 0, 1};const int mod = 1000000007;//const int mod = 998244353;struct mint{int x;mint(ll y = 0){if(y < 0 || y >= mod) y = (y%mod+mod)%mod; x = y;}mint(const mint &ope) {x = ope.x;}mint operator-(){return mint(-x);}mint operator+(const mint &ope){return mint(x) += ope;}mint operator-(const mint &ope){return mint(x) -= ope;}mint operator*(const mint &ope){return mint(x) *= ope;}mint operator/(const mint &ope){return mint(x) /= ope;}mint& operator+=(const mint &ope){x += ope.x; if(x >= mod) x -= mod; return *this;}mint& operator-=(const mint &ope){x += mod - ope.x; if(x >= mod) x -= mod; return *this;}mint& operator*=(const mint &ope){ll tmp = x; tmp *= ope.x, tmp %= mod; x = tmp; return *this;}mint& operator/=(const mint &ope){ll n = mod-2; mint mul = ope;while(n){if(n & 1) *this *= mul; mul *= mul; n >>= 1;}return *this;}mint inverse(){return mint(1) / *this;}bool operator ==(const mint &ope){return x == ope.x;}bool operator !=(const mint &ope){return x != ope.x;}bool operator <(const mint &ope)const{return x < ope.x;}};mint modpow(mint a, ll n){if(n == 0) return mint(1);if(n % 2) return a * modpow(a, n-1);else return modpow(a*a, n/2);}istream& operator >>(istream &is, mint &ope){ll t; is >> t, ope.x = t; return is;}ostream& operator <<(ostream &os, mint &ope){return os << ope.x;}ostream& operator <<(ostream &os, const mint &ope){return os << ope.x;}ll modpow(ll a, ll n, ll mod){if(n == 0) return 1;if(n % 2) return ((a%mod) * (modpow(a, n-1, mod)%mod)) % mod;else return modpow((a*a)%mod, n/2, mod) % mod;}vector<mint> fact, fact_inv;void make_fact(int n){fact.resize(n+1), fact_inv.resize(n+1);fact[0] = mint(1); rep(i, 1, n) fact[i] = fact[i-1] * mint(i);fact_inv[n] = fact[n].inverse(); per(i, n-1, 0) fact_inv[i] = fact_inv[i+1] * mint(i+1);}mint comb(int n, int k){ if(n < 0 || k < 0 || n < k) return mint(0); return fact[n] * fact_inv[k] * fact_inv[n-k];}mint perm(int n, int k){ return comb(n, k) * fact[k]; }vector<int> prime, pvec, qrime;void make_prime(int n){prime.resize(n+1);rep(i, 2, n){if(prime[i] == 0) pvec.push_back(i), prime[i] = i;for(auto p : pvec){ if(i*p > n || p > prime[i]) break; prime[i*p] = p;}}}void make_qrime(int n){qrime.resize(n+1);rep(i, 2, n){int ni = i / prime[i]; if(prime[i] == prime[ni]) qrime[i] = qrime[ni] * prime[i]; else qrime[i] = prime[i];}}bool exceed(ll x, ll y, ll m){return y > 0 && x >= m / y + 1;}void mark(){ cout << "*" << endl; }void yes(){ cout << "YES" << endl; }void no(){ cout << "NO" << endl; }ll floor(ll a, ll b){ if(b < 0) a *= -1, b *= -1; if(a >= 0) return a/b; else return -((-a+b-1)/b); }ll ceil(ll a, ll b){ if(b < 0) a *= -1, b *= -1; if(a >= 0) return (a+b-1)/b; else return -((-a)/b); }ll modulo(ll a, ll b){ b = abs(b); return a - floor(a, b) * b;}ll sgn(ll x){ if(x > 0) return 1; if(x < 0) return -1; return 0;}ll gcd(ll a, ll b){if(b == 0) return a; return gcd(b, a%b);}ll lcm(ll a, ll b){return a/gcd(a, b)*b;}ll arith(ll x){return x*(x+1)/2;}ll arith(ll l, ll r){return arith(r) - arith(l-1);}ll digitnum(ll x, ll b = 10){ll ret = 0; for(; x; x /= b) ret++; return ret;}ll digitsum(ll x, ll b = 10){ll ret = 0; for(; x; x /= b) ret += x % b; return ret;}string lltos(ll x){string ret; for(;x;x/=10) ret += x % 10 + '0'; reverse(all(ret)); return ret;}ll stoll(string &s){ll ret = 0; for(auto c : s) ret *= 10, ret += c - '0'; return ret;}template<typename T> void uniq(T &vec){sort(all(vec)); vec.erase(unique(all(vec)), vec.end());}int popcount(ull x){x -= ((x>>1)&0x5555555555555555ULL), x = (x & 0x3333333333333333ULL) + ((x>>2) & 0x3333333333333333ULL);return (((x + (x>>4)) & 0x0F0F0F0F0F0F0F0FULL) * 0x0101010101010101ULL) >> 56;}template<class S, class T> pair<S, T>& operator+=(pair<S, T> &s, const pair<S, T> &t){s.first += t.first, s.second += t.second; return s;}template<class S, class T> pair<S, T>& operator-=(pair<S, T> &s, const pair<S, T> &t){s.first -= t.first, s.second -= t.second; return s;}template<class S, class T> pair<S, T> operator+(const pair<S, T> &s, const pair<S, T> &t){return pair<S,T>(s.first+t.first, s.second+t.second);}template<class S, class T> pair<S, T> operator-(const pair<S, T> &s, const pair<S, T> &t){return pair<S,T>(s.first-t.first, s.second-t.second);}template<class T> T dot(const pair<T, T> &s, const pair<T, T> &t){return s.first*t.first + s.second*t.second;}template<class T> T cross(const pair<T, T> &s, const pair<T, T> &t){return s.first*t.second - s.second*t.first;}template<typename T, typename U> ostream& operator << (ostream& os, pair<T, U>& ope){ os << "(" << ope.first << ", " << ope.second << ")"; return os;}template<typename T, typename U> ostream& operator << (ostream& os, const pair<T, U>& ope){ os << "(" << ope.first << ", " << ope.second << ")";return os;}template<typename T> ostream& operator << (ostream& os, vector<T>& vec){reps(i, vec) os << vec[i] << " "; return os;}template<typename T> ostream& operator << (ostream& os, const vector<T>& vec){reps(i, vec) os << vec[i] << " "; return os;}template<typename T> ostream& operator << (ostream& os, list<T>& ls){for(auto x : ls) os << x << " "; return os;}template<typename T> ostream& operator << (ostream& os, const list<T>& ls){for(auto x : ls) os << x << " "; return os;}template<typename T> ostream& operator << (ostream& os, deque<T>& deq){reps(i, deq) os << deq[i] << " "; return os;}template<typename T, typename U> ostream& operator << (ostream& os, map<T, U>& ope){ for(auto p : ope) os << "(" << p.first << ", " << p.second << "),";return os;}template<typename T> ostream& operator << (ostream& os, set<T>& ope){for(auto x : ope) os << x << " "; return os;}template<typename T> ostream& operator << (ostream& os, multiset<T>& ope){for(auto x : ope) os << x << " "; return os;}template<typename T> void outa(T a[], ll s, ll t){rep(i, s, t){ cout << a[i]; if(i < t) cout << " ";} cout << endl;}template<typename T, size_t N> ostream& operator << (ostream& os, array<T, N>& arr){reps(i, arr) os << arr[i] << " "; return os;}template<typename T, size_t N> ostream& operator << (ostream& os, const array<T, N>& arr){reps(i, arr) os << arr[i] << " "; return os;}void dump_func(){cout << endl;}template <class Head, class... Tail>void dump_func(Head &&head, Tail &&... tail){cout << head; if(sizeof...(Tail) > 0) cout << " "; dump_func(std::move(tail)...);}void z_algorithm(vector<P> &s, vector<ll> &z){z.resize(s.size());z[0] = s.size();int x = 0, y = 0;for(int i = 1; i < s.size(); i++){if(i > y){z[i] = 0;for(int j = 0; j < s.size(); j++){if(i+j >= s.size() || s[i+j] != s[j]) break;z[i]++;}x = i, y = i + z[i] - 1;}else if(i + z[i-x] <= y) z[i] = z[i-x];else{z[i] = y-i+1;for(int j = y-i+1; j < s.size(); j++){if(i+j >= s.size() || s[i+j] != s[j]) break;z[i]++;}x = i, y = i + z[i] - 1;}}}ll n;ll a[200005], sum[200005];string s;vector<ll> z;int main(void){ios::sync_with_stdio(0);cin.tie(0);cin >> n;rep(i, 0, n-1) cin >> a[i];cin >> s;sum[0] = a[0];rep(i, 1, n-1) sum[i] = sum[i-1] + a[i];vector<P> vec;rep(i, 0, n-1) vec.pb(P(s[i]-'a', a[i]));if(sz(vec) == 1){outl(mint(arith(a[0])));return 0;}vector<P> vec2 = vec;vec2.erase(vec2.begin());z_algorithm(vec2, z);mint ans = 0;rep(i, 0, n-1){if(vec[i].fi != vec[0].fi) continue;if(vec[i].se < vec[0].se){ans += mint(arith(vec[i].se));continue;}ans += mint(arith(vec[0].se));ans += mint(vec[0].se) * mint(vec[i].se - vec[0].se);if(i <= n-2){ll l = z[i];ans += sum[l] - sum[0];if(l+1 <= n-1 && i+1+l <= n-1 && vec[l+1].fi == vec[i+1+l].fi) ans += min(vec[l+1].se, vec[i+1+l].se);}}outl(ans);return 0;}