結果
問題 | No.1115 二つの数列 / Two Sequences |
ユーザー | rniya |
提出日時 | 2020-07-17 22:13:31 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 88 ms / 2,000 ms |
コード長 | 3,265 bytes |
コンパイル時間 | 1,708 ms |
コンパイル使用メモリ | 175,688 KB |
実行使用メモリ | 9,088 KB |
最終ジャッジ日時 | 2024-05-07 09:07:47 |
合計ジャッジ時間 | 4,509 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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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 | 5 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 1 ms
6,944 KB |
testcase_03 | AC | 71 ms
8,320 KB |
testcase_04 | AC | 83 ms
8,832 KB |
testcase_05 | AC | 74 ms
8,192 KB |
testcase_06 | AC | 63 ms
7,808 KB |
testcase_07 | AC | 82 ms
8,832 KB |
testcase_08 | AC | 4 ms
6,944 KB |
testcase_09 | AC | 29 ms
6,940 KB |
testcase_10 | AC | 52 ms
8,960 KB |
testcase_11 | AC | 2 ms
6,940 KB |
testcase_12 | AC | 88 ms
8,960 KB |
testcase_13 | AC | 86 ms
8,960 KB |
testcase_14 | AC | 84 ms
9,088 KB |
testcase_15 | AC | 2 ms
6,944 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 | 1 ms
6,940 KB |
testcase_20 | AC | 2 ms
6,940 KB |
testcase_21 | AC | 1 ms
6,944 KB |
testcase_22 | AC | 1 ms
6,940 KB |
testcase_23 | AC | 6 ms
6,944 KB |
testcase_24 | AC | 26 ms
6,944 KB |
testcase_25 | AC | 59 ms
7,424 KB |
testcase_26 | AC | 13 ms
6,940 KB |
testcase_27 | AC | 35 ms
6,940 KB |
testcase_28 | AC | 47 ms
6,940 KB |
testcase_29 | AC | 64 ms
7,808 KB |
testcase_30 | AC | 79 ms
8,704 KB |
testcase_31 | AC | 18 ms
6,944 KB |
testcase_32 | AC | 11 ms
6,944 KB |
testcase_33 | AC | 69 ms
8,320 KB |
testcase_34 | AC | 2 ms
6,940 KB |
testcase_35 | AC | 2 ms
6,940 KB |
testcase_36 | AC | 2 ms
6,944 KB |
testcase_37 | AC | 2 ms
6,940 KB |
testcase_38 | AC | 2 ms
6,940 KB |
testcase_39 | AC | 1 ms
6,944 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; #define LOCAL #pragma region Macros typedef long long ll; #define ALL(x) (x).begin(),(x).end() const long long MOD=1e9+7; // const long long MOD=998244353; const int INF=1e9; const long long IINF=1e18; const int dx[4]={1,0,-1,0},dy[4]={0,1,0,-1}; const char dir[4]={'D','R','U','L'}; template<typename T> istream &operator>>(istream &is,vector<T> &v){ for (T &x:v) is >> x; return is; } template<typename T> ostream &operator<<(ostream &os,const vector<T> &v){ for (int i=0;i<v.size();++i){ os << v[i] << (i+1==v.size()?"": " "); } return os; } template<typename T,typename U> ostream &operator<<(ostream &os,const pair<T,U> &p){ cout << '(' << p.first << ',' << p.second << ')'; return os; } template<typename T,typename U> ostream &operator<<(ostream &os,const map<T,U> &m){ os << '{'; for (auto itr=m.begin();itr!=m.end();++itr){ os << '(' << itr->first << ',' << itr->second << ')'; if (++itr!=m.end()) os << ','; --itr; } os << '}'; return os; } template<typename T> ostream &operator<<(ostream &os,const set<T> &s){ os << '{'; for (auto itr=s.begin();itr!=s.end();++itr){ os << *itr; if (++itr!=s.end()) os << ','; --itr; } os << '}'; return os; } void debug_out(){cerr << '\n';} template<class Head,class... Tail> void debug_out(Head&& head,Tail&&... tail){ cerr << head; if (sizeof...(Tail)>0) cerr << ", "; debug_out(move(tail)...); } #ifdef LOCAL #define debug(...) cerr << " ";\ cerr << #__VA_ARGS__ << " :[" << __LINE__ << ":" << __FUNCTION__ << "]" << '\n';\ cerr << " ";\ debug_out(__VA_ARGS__) #else #define debug(...) 42 #endif template<typename T> T gcd(T x,T y){return y!=0?gcd(y,x%y):x;} template<typename T> T lcm(T x,T y){return x/gcd(x,y)*y;} template<class T1,class T2> inline bool chmin(T1 &a,T2 b){ if (a>b){a=b; return true;} return false; } template<class T1,class T2> inline bool chmax(T1 &a,T2 b){ if (a<b){a=b; return true;} return false; } #pragma endregion template<typename T> struct BinaryIndexedTree{ vector<T> dat; BinaryIndexedTree(int n):dat(n+1,0){} void add(int i,T x){ if (i==0) return; for (;i<=dat.size();i+=(i&-i)) dat[i]+=x; } T sum(int i){ T res=0; for (;i>0;i-=(i&-i)) res+=dat[i]; return res; } T query(int l,int r){ //[l,r) return sum(r-1)-sum(l-1); } int lower_bound(T x){ if (x<=0) return 0; int lb=0,r=1; while(r<dat.size()) r<<=1; for (;r>0;r>>=1){ if (lb+r<dat.size()&&dat[lb+r]<x){ x-=dat[lb+r]; lb+=r; } } return lb+1; } void add0(int i,T x){add(i+1,x);} T sum0(int i){return sum(i+1);} T query0(int l,int r){return sum(r)-sum(l);} }; int main(){ cin.tie(0); ios::sync_with_stdio(false); int n; cin >> n; vector<int> a(n),b(n); cin >> a >> b; map<int,int> m; for (int i=0;i<n;++i) m[b[i]]=i+1; for (int i=0;i<n;++i) a[i]=m[a[i]]; BinaryIndexedTree<int> BIT(n+10); ll ans=0; for (int i=n-1;i>=0;--i){ ans+=BIT.sum(a[i]); BIT.add(a[i],1); } cout << ans << '\n'; }