結果
問題 | No.2419 MMA文字列2 |
ユーザー |
|
提出日時 | 2023-08-12 13:39:42 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 79 ms / 2,000 ms |
コード長 | 3,654 bytes |
コンパイル時間 | 5,000 ms |
コンパイル使用メモリ | 283,260 KB |
最終ジャッジ日時 | 2025-02-16 03:20:00 |
ジャッジサーバーID (参考情報) |
judge1 / judge1 |
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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<bits/stdc++.h>#include<atcoder/all>using namespace atcoder;#pragma GCC target("avx2")#pragma GCC optimize("O3")#pragma GCC optimize("unroll-loops")using namespace std;using ll=long long;using ld=long double;using ull=unsigned long long;using i128 = __int128_t;#define vs vector<string>#define rep(i,n) for(ll i=0;i<ll(n);i++)#define rep2(i,n) for(ll i=n-1;i>=0;i--)#define rep3(i,a,b) for(ll i=a;i<=ll(b);i++)#define rep4(i,a,b) for(ll i=a;i>=ll(b);i--)#define forv(i,V) for(const auto& i:V)#define all(x) x.begin(),x.end()#define fi first#define se second#define SIZE(x) int(x.size())constexpr ll mod=998244353;//constexpr ll mod=1000000007;#define pi 3.14159265358979323#define INF32 2147483647#define INF64 9223372036854775807#define faster ios::sync_with_stdio(false);std::cin.tie(nullptr)#define pii pair<int, int>#define pll pair<ll, ll>#define pb push_back#define eb emplace_back#define mp make_pair#define rev reverse#define vi vector<int>#define vll vector<ll>#define vpi vector<pair<int,int>>#define vpll vector<pair<ll,ll>>#define vvi vector<vector<int>>#define vvll vector<vector<ll>>#define prq priority_queue#define lb lower_bound#define ub upper_bound#define popcnt __builtin_popcountll#define TLE while(true);#define RE assert(false);#define MLE vector<vector<vector<long long>>> mle_mle(400,vector<vector<long long>>(1000,vector<long long>(1000)));const string YESNO[2] = {"NO", "YES"};const string YesNo[2] = {"No", "Yes"};const string yesno[2] = {"no", "yes"};#define rall(n) (n).rbegin(),(n).rend()#define INT(...) int __VA_ARGS__;scan(__VA_ARGS__)#define LL(...) ll __VA_ARGS__;scan(__VA_ARGS__)#define STR(...) string __VA_ARGS__;scan(__VA_ARGS__)#define CHR(...) char __VA_ARGS__;scan(__VA_ARGS__)#define DBL(...) double __VA_ARGS__;scan(__VA_ARGS__)#define LD(...) ld __VA_ARGS__;scan(__VA_ARGS__)template<typename T,typename U>ostream &operator<<(ostream&os,const pair<T,U>&p){os<<p.first<<" "<<p.second;return os;}template<typename T,typename U>istream &operator>>(istream&is,pair<T,U>&p){is>>p.first>>p.second;return is;}template<typename T>ostream &operator<<(ostream&os,const vector<T>&v){for(auto it=v.begin();it!=v.end();){os<<*it<<((++it)!=v.end()?" ":"");}return os;}template<typename T>istream &operator>>(istream&is,vector<T>&v){for(T &in:v){is>>in;}return is;}void scan(){}template<class Head,class... Tail>void scan(Head&head,Tail&... tail){cin>>head;scan(tail...);}template<class T>void print(const T &t){cout<<t<<'\n';}template<class Head, class... Tail>void print(const Head &head, const Tail &... tail){cout<<head<<' ';print(tail...);}template<class... T>void fin(const T &... a){print(a...);exit(0);}ll max(int a,ll b){return max((ll)a,b);}ll max(ll a,int b){return max((ll)b,a);}ll min(int a,ll b){return min((ll)a,b);}ll min(ll a,int b){return min((ll)b,a);}//a以上b以下の個数template<typename T>ll RangeOK(ll a,ll b,vector<T> &v){return max(ub(all(v),b)-lb(all(v),a),0);}template <typename T>vector<T> compress(vector<T> &X) {vector<T> vals = X;sort(vals.begin(), vals.end());vals.erase(unique(vals.begin(), vals.end()), vals.end());for (int i = 0; i < (int)X.size(); i++) {X[i] = lower_bound(vals.begin(), vals.end(), X[i]) - vals.begin();}return vals;}#include <ext/pb_ds/assoc_container.hpp>#include <ext/pb_ds/tree_policy.hpp>using namespace __gnu_pbds;int main(){STR(s);ll n = s.size();map<char, ll> m;ll ans = 0;rep(i, n){for(char c = 'A'; c <= 'Z'; c++){if(c != s[i]) ans += m[c]*(m[c]-1)/2;}m[s[i]]++;}fin(ans);}