結果
問題 | No.2419 MMA文字列2 |
ユーザー |
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提出日時 | 2023-08-12 14:25:40 |
言語 | C++17(clang) (17.0.6 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 54 ms / 2,000 ms |
コード長 | 3,981 bytes |
コンパイル時間 | 7,696 ms |
コンパイル使用メモリ | 237,744 KB |
実行使用メモリ | 45,696 KB |
最終ジャッジ日時 | 2024-11-19 19:19:35 |
合計ジャッジ時間 | 8,420 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 30 |
ソースコード
#include <atcoder/all>using namespace atcoder;#include <atcoder/internal_math>using namespace internal;#include <bits/stdc++.h>using namespace std;#include <boost/multiprecision/cpp_int.hpp>#pragma GCC target("avx2")#pragma GCC optimize("O3")#pragma GCC optimize("unroll-loops")#define rep(i, n) for (int i = 0; i < (int)(n); i++)#define rep2(i,a,b) for (int i = (int)(a); i < (int)(b); i++)#define all(v) v.begin(),v.end()#define inc(x,l,r) ((l)<=(x)&&(x)<(r))#define Unique(x) sort(all(x)), x.erase(unique(all(x)), x.end())#define pcnt __builtin_popcountlltypedef long long ll;#define int llusing ld = long double;using vi = vector<int>;using vs = vector<string>;using P = pair<int,int>;using vp = vector<P>;using Bint = boost::multiprecision::cpp_int;template<typename T1,typename T2> bool chmax(T1 &a, const T2 b) {if (a < b) {a = b; return true;} else return false; }template<typename T1,typename T2> bool chmin(T1 &a, const T2 b) {if (a > b) {a = b; return true;} else return false; }template<typename T> using priority_queue_greater = priority_queue<T, vector<T>, greater<T>>;template<typename T1,typename T2> ostream &operator<< (ostream &os, const pair<T1,T2> &p){os << p.first <<" "<<p.second;return os;}ostream &operator<< (ostream &os, const modint1000000007 &m){os << m.val();return os;}istream &operator>> (istream &is, modint1000000007 &m){ll in;is>>in;m=in;return is;}ostream &operator<< (ostream &os, const modint998244353 &m){os << m.val();return os;}istream &operator>> (istream &is, modint998244353 &m){ll in;is>>in;m=in;return is;}template<typename T> istream &operator>>(istream& is,vector<T> &v){for(T &in:v)is>>in;return is;}template<class... T> void input(T&... a){(cin>> ... >> a);}#ifdef LOCALtemplate<typename T> ostream &operator<<(ostream &os,const vector<T> &v){os<<"\x1b[32m";rep(i,v.size())os<<v[i]<<(i+1!=v.size()?" ":"");os<<"\x1b[0m";return os;}template<class T> int print(T& a){cout << "\x1b[32m"<< a<< '\n' << "\x1b[0m";return 0;}template<class T,class... Ts> int print(const T&a, const Ts&... b){cout << "\x1b[32m" << a;(cout<<...<<(cout<<' ',b));cout<<'\n' << "\x1b[0m";return 0;}#elsetemplate<typename T> ostream &operator<<(ostream &os,const vector<T> &v){rep(i,v.size())os<<v[i]<<(i+1!=v.size()?" ":"");return os;}template<class T> int print(T& a){cout << a<< '\n';return 0;}template<class T,class... Ts> int print(const T&a, const Ts&... b){cout << a;(cout<<...<<(cout<<' ',b));cout<<'\n';return 0;}#endif#define VI(v,n) vi v(n); input(v)#define INT(...) int __VA_ARGS__; input(__VA_ARGS__)#define STR(...) string __VA_ARGS__; input(__VA_ARGS__)#define CHAR(...) char __VA_ARGS__; input(__VA_ARGS__)int sign(ll x){return x>0?1:x<0?-1:0;}ll ceil(ll x,ll y){assert(y!=0);if(sign(x)==sign(y))return (x+y-1)/y;return -((-x/y));}ll floor(ll x,ll y){assert(y!=0);if(sign(x)==sign(y))return x/y;if(y<0)x*=-1,y*=-1;return x/y-(x%y<0);}ll abs(ll x,ll y){return abs(x-y);}ll bit(int n){return 1ll<<n;}template<class T> bool ins(string s,T t){return s.find(t)!=string::npos;}P operator+ (const P &p, const P &q){ return P{p.first+q.first,p.second+q.second};}P operator- (const P &p, const P &q){ return P{p.first-q.first,p.second-q.second};}int yesno(bool ok,string y="Yes",string n="No"){ cout<<(ok?y:n)<<endl;return 0;}int YESNO(bool ok,string y="YES",string n="NO"){ cout<<(ok?y:n)<<endl;return 0;}int di[]={-1,0,1,0,-1,-1,1,1};int dj[]={0,1,0,-1,-1,1,-1,1};const ll INF = 8e18;//using mint = modint1000000007;//using mint = modint998244353;//mint stom(const string &s,int b=10){mint res = 0;for(auto c:s)res *= b,res += c-'0';return res;}signed main() {cin.tie(0);ios_base::sync_with_stdio(false);cout << fixed << setprecision(20);STR(s);int n = s.size();vector fw(26,fenwick_tree<int>(n));rep(i,n)fw[s[i]-'A'].add(i,1);int res = 0;rep(i,n)res += fw[s[i]-'A'].sum(0,i) * (n-i - fw[s[i]-'A'].sum(i,n));print(res);return 0;}