結果
問題 | No.2374 ASKT Subsequences |
ユーザー |
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提出日時 | 2024-03-19 21:07:59 |
言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 42 ms / 2,000 ms |
コード長 | 5,969 bytes |
コンパイル時間 | 4,038 ms |
コンパイル使用メモリ | 273,488 KB |
実行使用メモリ | 34,560 KB |
最終ジャッジ日時 | 2024-09-30 05:41:13 |
合計ジャッジ時間 | 4,806 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 28 |
ソースコード
#ifdef DEBUG#include"stdlibrary.h"#else#pragma GCC target("avx")#pragma GCC optimize("O3")#pragma GCC optimize("unroll-loops")#include<bits/stdc++.h>using namespace std;#endif// #include<ext/pb_ds/assoc_container.hpp>// #include<ext/pb_ds/tree_policy.hpp>// #include<ext/pb_ds/tag_and_trait.hpp>// using namespace __gnu_pbds;// #include<boost/multiprecision/cpp_int.hpp>// namespace multiprecisioninteger = boost::multiprecision;// using cint=multiprecisioninteger::cpp_int;using ll=long long;using datas=std::pair<ll,ll>;using ddatas=std::pair<long double,long double>;using tdata=std::pair<ll,datas>;using vec=std::vector<ll>;using mat=std::vector<vec>;using pvec=std::vector<datas>;using pmat=std::vector<pvec>;// using llset=tree<ll,null_type,less<ll>,rb_tree_tag,tree_order_statistics_node_update>;#define For(i,a,b) for(i=a;i<(ll)b;++i)#define bFor(i,b,a) for(i=b,--i;i>=(ll)a;--i)#define rep(i,N) For(i,0,N)#define rep1(i,N) For(i,1,N)#define brep(i,N) bFor(i,N,0)#define brep1(i,N) bFor(i,N,1)#define all(v) std::begin(v),std::end(v)#define allr(v) std::rbegin(v),std::rend(v)#define vsort(v) std::sort(all(v))#define vrsort(v) std::sort(allr(v))#define uniq(v) vsort(v),(v).erase(std::unique(all(v)),std::end(v))#define endl "\n"#define popcount __builtin_popcountll#define print(x) std::cout<<x<<endl#define printyes print("Yes")#define printno print("No")#define printYES print("YES")#define printNO print("NO")#define output(v) do{bool f=0;for(auto outi:v){std::cout<<(f?" ":"")<<outi;f=1;}std::cout<<endl;}while(0)#define matoutput(v) do{for(auto outimat:v)output(outimat);}while(0)// constexpr ll mod=1000000007;constexpr ll mod=998244353;constexpr ll inf=1LL<<60;constexpr long double eps=1e-9;const long double PI=acosl(-1);template<class T,auto x=T::mod()> std::ostream& operator<<(std::ostream& os,const T& v){return os<<v.val();}template<class T> std::ostream& operator<<(std::ostream& os,const std::vector<T>& v);template<class T,class F> std::ostream& operator<<(std::ostream& os,const std::set<T,F>& v);template<class T,class F> std::ostream& operator<<(std::ostream& os,const std::multiset<T,F>& v);template<class T,class E,class F> std::ostream& operator<<(std::ostream& os,const std::map<T,E,F>& v);template<class T,class E> std::ostream& operator<<(std::ostream& os,const std::pair<T,E>& p){return os<<"("<<p.first<<","<<p.second<<")";}template<class T> std::ostream& operator<<(std::ostream& os,const std::vector<T>& v){os<<"{";bool f=false;for(auto& x:v){if(f)os<<",";os<<x;f=true;}os<<"}";return os;}template<class T,class F> std::ostream& operator<<(std::ostream& os,const std::set<T,F>& v){os<<"{";bool f=false;for(auto& x:v){if(f)os<<",";os<<x;f=true;}os<<"}";return os;}template<class T,class F> std::ostream& operator<<(std::ostream& os,const std::multiset<T,F>& v){os<<"{";bool f=false;for(auto& x:v){if(f)os<<",";os<<x;f=true;}os<<"}";return os;}template<class T,class E,class F> std::ostream& operator<<(std::ostream& os,const std::map<T,E,F>& v){os<<"{";bool f=false;for(auto& x:v){if(f)os<<",";os<<x;f=true;}os<<"}";return os;}template<class T> inline bool chmax(T& a,const T b){bool x=a<b;if(x)a=b;return x;}template<class T> inline bool chmin(T& a,const T b){bool x=a>b;if(x)a=b;return x;}#ifdef DEBUGvoid debugg(){std::cout<<endl;}template<class T,class... Args>void debugg(const T& x,const Args&... args){std::cout<<" "<<x;debugg(args...);}#define debug(...) cout<<__LINE__<<" ["<<#__VA_ARGS__<<"]:",debugg(__VA_ARGS__)#else#define debug(...) (void(0))#endifinline void startupcpp(void) noexcept{cin.tie(0)->sync_with_stdio(0);cout<<fixed<<setprecision(15);}ll modinv(ll a,const ll m=mod) noexcept{ll b=m,u=1,v=0,t;while(b){t=a/b;a-=t*b; swap(a,b);u-=t*v; swap(u,v);}return (u+m)%m;}ll moddevide(const ll a,const ll b) noexcept{return (a*modinv(b))%mod;}vec modncrlistp,modncrlistm;ll modncr(const ll n,const ll r){if(n<r||r<0)return 0;ll i,size=modncrlistp.size();if(size<=n){modncrlistp.resize(n+1);modncrlistm.resize(n+1);if(!size){modncrlistp[0]=modncrlistm[0]=1;size++;}For(i,size,n+1)modncrlistp[i]=modncrlistp[i-1]*i%mod;modncrlistm[n]=modinv(modncrlistp[n]);for(i=n;i>size;--i)modncrlistm[i-1]=modncrlistm[i]*i%mod;}return modncrlistp[n]*modncrlistm[r]%mod*modncrlistm[n-r]%mod;}ll modpow(ll a,ll n,const ll m=mod){if(n<0)return 0;ll res=1;while(n>0){if(n&1)res=res*a%m;a=a*a%m;n>>=1;}return res;}constexpr ll gcd(const ll a,const ll b) noexcept{return (!b)?abs(a):(a%b==0)?abs(b):gcd(b,a%b);}constexpr ll lcm(const ll a,const ll b) noexcept{return a/gcd(a,b)*b;}// #include<atcoder/all>// using mint=atcoder::modint998244353;// void operator>>(istream& is,mint& v){long long x;is>>x;v=x;}ll solve(const vec& a){ll N=a.size();ll i,j,A=0;rep(i,N)chmax(A,a[i]);mat cnt(N+1,vec(A+1,0));rep(i,N){rep(j,A+1)cnt[i+1][j]=cnt[i][j];cnt[i+1][a[i]]++;}ll ans=0;rep(i,N)rep(j,i){ll K=a[j]-a[i];if(K<=0||0>a[j]-K-10||a[i]+K+1>A)continue;ans+=cnt[j][a[j]-K-10]*(cnt[N][a[i]+K+1]-cnt[i+1][a[i]+K+1]);}return ans;}ll judge(const vec& a){ll N=a.size();ll i,j,k,l;ll ans=0;rep(l,N)rep(k,l)rep(j,k)rep(i,j){ll K=a[j]-a[i]-10;if(a[k]==a[j]-K&&a[l]==a[k]+K+1)++ans;}return ans;}ll N,M,K,H,W,Q,A,B,C,D;string s,t;ll ans;int main(){startupcpp();// int codeforces;cin>>codeforces;while(codeforces--){ll i,j;vec a;cin>>N;a.resize(N);rep(i,N){cin>>a[i];--a[i];}// ll cnt=0;// while(1){// if(++cnt%1000==0)print(cnt);// N=20;// a.resize(N);// rep(i,N)a[i]=rand()%100;// if(solve(a)!=judge(a)){// print(a);// print(solve(a));// print(judge(a));// break;// }// }print(solve(a));}