結果
問題 | No.2089 置換の符号 |
ユーザー | cureskol |
提出日時 | 2022-10-01 12:13:02 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 7 ms / 2,000 ms |
コード長 | 5,559 bytes |
コンパイル時間 | 3,165 ms |
コンパイル使用メモリ | 226,944 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-06 05:09:57 |
合計ジャッジ時間 | 4,203 ms |
ジャッジサーバーID (参考情報) |
judge4 / 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 | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 1 ms
6,944 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 2 ms
6,944 KB |
testcase_08 | AC | 2 ms
6,944 KB |
testcase_09 | AC | 2 ms
6,944 KB |
testcase_10 | AC | 2 ms
6,944 KB |
testcase_11 | AC | 2 ms
6,940 KB |
testcase_12 | AC | 2 ms
6,944 KB |
testcase_13 | AC | 1 ms
6,944 KB |
testcase_14 | AC | 2 ms
6,944 KB |
testcase_15 | AC | 2 ms
6,940 KB |
testcase_16 | AC | 2 ms
6,940 KB |
testcase_17 | AC | 2 ms
6,940 KB |
testcase_18 | AC | 2 ms
6,940 KB |
testcase_19 | AC | 2 ms
6,944 KB |
testcase_20 | AC | 2 ms
6,944 KB |
testcase_21 | AC | 2 ms
6,944 KB |
testcase_22 | AC | 2 ms
6,940 KB |
testcase_23 | AC | 2 ms
6,940 KB |
testcase_24 | AC | 2 ms
6,944 KB |
testcase_25 | AC | 2 ms
6,944 KB |
testcase_26 | AC | 2 ms
6,944 KB |
testcase_27 | AC | 3 ms
6,940 KB |
testcase_28 | AC | 6 ms
6,940 KB |
testcase_29 | AC | 7 ms
6,944 KB |
testcase_30 | AC | 7 ms
6,940 KB |
testcase_31 | AC | 6 ms
6,944 KB |
testcase_32 | AC | 7 ms
6,944 KB |
ソースコード
#pragma region template #pragma GCC optimize("Ofast") #include <bits/stdc++.h> using namespace std; #ifdef __LOCAL #include <debug> #else #define debug(...) void(0) #endif using ll=long long; using ld=long double; using vi=vector<int>; using vll=vector<ll>; using pi=pair<int,int>; using pll=pair<ll,ll>; #define overload2(a,b,c,...) c #define overload3(a,b,c,d,...) d #define overload4(a,b,c,d,e,...) e #define overload5(a,b,c,d,e,f,...) f #define TYPE1(T) template<typename T> #define TYPE2(T,U) template<typename T,typename U> #define TYPE(...) overload2(__VA_ARGS__,TYPE2,TYPE1)(__VA_ARGS__) #define TYPES1(T) template<typename... T> #define TYPES2(H,T) template<typename H,typename... T> #define TYPES(...) overload2(__VA_ARGS__,TYPES2,TYPES1)(__VA_ARGS__) #define REP4(i,s,n,d) for(int i=(s);i<(n);i+=(d)) #define REP3(i,s,n) REP4(i,s,n,1) #define REP2(i,n) REP3(i,0,n) #define REP1(n) REP2(tomato,n) #define REP(...) overload4(__VA_ARGS__,REP4,REP3,REP2,REP1)(__VA_ARGS__) #define RREP4(i,n,s,d) for(int i=(n)-1;i>=s;i-=d) #define RREP3(i,n,s) RREP4(i,n,s,1) #define RREP2(i,n) RREP3(i,n,0) #define RREP1(n) RREP2(tomato,n) #define RREP(...) overload4(__VA_ARGS__,RREP4,RREP3,RREP2,RREP1)(__VA_ARGS__) #define FOR4(a,b,c,d,v) for(auto [a,b,c,d]:v) #define FOR3(a,b,c,v) for(auto [a,b,c]:v) #define FOR2(a,b,v) for(auto [a,b]:v) #define FOR1(a,v) for(auto a:v) #define FOR(...) overload5(__VA_ARGS__,FOR4,FOR3,FOR2,FOR1)(__VA_ARGS__) #define AFOR4(a,b,c,d,v) for(auto&[a,b,c,d]:v) #define AFOR3(a,b,c,v) for(auto&[a,b,c]:v) #define AFOR2(a,b,v) for(auto&[a,b]:v) #define AFOR1(a,v) for(auto&a:v) #define AFOR(...) overload5(__VA_ARGS__,AFOR4,AFOR3,AFOR2,AFOR1)(__VA_ARGS__) #define CFOR4(a,b,c,d,v) for(const auto&[a,b,c,d]:v) #define CFOR3(a,b,c,v) for(const auto&[a,b,c]:v) #define CFOR2(a,b,v) for(const auto&[a,b]:v) #define CFOR1(a,v) for(const auto&a:v) #define CFOR(...) overload5(__VA_ARGS__,CFOR4,CFOR3,CFOR2,CFOR1)(__VA_ARGS__) #define ALL(v) v.begin(),v.end() #define RALL(v) v.rbegin(),v.rend() #define SORT(v) sort(ALL(v)) #define RSORT(v) sort(RALL(v)) #define REVERSE(v) reverse(ALL(v)) #define UNIQUE(v) SORT(v),v.erase(unique(ALL(v)),v.end()) TYPES(T) void input(T&... a){ (cin>>...>>a); } #define DECLARE(T,...) T __VA_ARGS__;input(__VA_ARGS__); #define INT(...) DECLARE(int,__VA_ARGS__) #define STR(...) DECLARE(string,__VA_ARGS__) #define LL(...) DECLARE(long long,__VA_ARGS__) #define CHR(...) DECLARE(char,__VA_ARGS__) #define DBL(...) DECLARE(double,__VA_ARGS__) #define VI(n,v) vi v(n);cin>>v; #define VLL(n,v) vll v(n);cin>>v; TYPE(T) istream&operator>>(istream&is,vector<T>&v){ for(auto&a:v)cin>>a; return is; } TYPE(T) ostream&operator<<(ostream&os,const vector<T>&v){ if(&os==&cerr)os<<"["; REP(i,v.size()){ os<<v[i]; if(i+1<v.size())os<<(&os==&cerr?",":" "); } if(&os==&cerr)os<<"]"; return os; } TYPE(T,S) istream&operator>>(istream&is,pair<T,S>&p){ cin>>p.first>>p.second; return is; } void print(){ cout << '\n'; } TYPES(T,Ts) void print(const T& a,const Ts&... b){ cout<<a; (cout<<...<<(cout<< ' ',b)); cout << '\n'; } TYPE(T) using pq=priority_queue<T>; TYPE(T) using pqg=priority_queue<T,vector<T>,greater<T>>; TYPE(T) T pick(queue<T>& que){assert(que.size()); T a=que.front();que.pop();return a;} TYPE(T) T pick(pq<T>& que){assert(que.size()); T a=que.top();que.pop();return a;} TYPE(T) T pick(pqg<T>& que){assert(que.size()); T a=que.top();que.pop();return a;} TYPE(T) T pick(stack<T>& sta){assert(sta.size()); T a=sta.top();sta.pop();return a;} string YES(bool f=true){return (f?"YES":"NO");} string Yes(bool f=true){return (f?"Yes":"No");} string yes(bool f=true){return (f?"yes":"no");} constexpr int INF=1e9+7; constexpr ll LINF=ll(1e18)+7; constexpr ld EPS=1e-10; vi iota(int n){vi a(n);iota(ALL(a),0);return a;} TYPE(T) T rev(T a){ REVERSE(a);return a; } TYPE(T) void fin(T a){cout<<a<<endl;exit(0);} TYPE(T) bool chmax(T &a,T b){return (a<b&&(a=b,true));} TYPE(T) bool chmin(T &a,T b){return (a>b&&(a=b,true));} TYPES(T,Ns) auto make_vector(T x,int n,Ns ...ns){ if constexpr(sizeof...(ns)==0)return vector<T>(n,x); else return vector(n,make_vector<T>(x,ns...)); } bool in(const ll S,const int a){return (S>>a)&1;} int popcount(const ll S){return __builtin_popcountll(S);} #pragma endregion template #include <atcoder/fenwicktree> using namespace atcoder; template<typename T> struct Compress{ map<T,int> mp; vector<T> rev; Compress()=default; Compress(const vector<T>&v,bool banpei=false){ for(const T&a:v)mp[a]; if(banpei)mp[numeric_limits<T>::max()],mp[numeric_limits<T>::min()]; build(); } void add(T a){ mp[a]; } void build(){ int cnt=0; rev.resize(mp.size()); for(auto&[val,id]:mp){ rev[cnt]=val; id=cnt++; } } int operator[](T a)const{return mp.at(a);} int geq(T a)const{return mp.lower_bound(a)->second;} int leq(T a)const{return (--mp.upper_bound(a))->second;} int gt(T a)const{return mp.upper_bound(a)->second;} int lt(T a)const{return (--mp.lower_bound(a))->second;} T r(int id)const{return rev[id];} int size()const{return mp.size();} }; template <typename T> long long inversion_number(const vector<T> &v){ Compress cmp(v); fenwick_tree<int> ft(cmp.size()); long long res=0; for(int i=int(v.size())-1;i>=0;i--){ int j=cmp[v[i]]; res+=ft.sum(0,j); ft.add(j,1); } return res; } int main(){ ios::sync_with_stdio(false); cin.tie(nullptr); INT(n); VI(n,v); auto A=inversion_number(v); if(A&1)fin(-1); else fin(1); }