結果
問題 | No.728 ギブ and テイク |
ユーザー | akua |
提出日時 | 2023-04-12 18:47:10 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 2,291 ms / 3,000 ms |
コード長 | 7,282 bytes |
コンパイル時間 | 5,761 ms |
コンパイル使用メモリ | 235,980 KB |
実行使用メモリ | 147,060 KB |
最終ジャッジ日時 | 2024-11-15 03:53:34 |
合計ジャッジ時間 | 28,188 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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 | 168 ms
34,432 KB |
testcase_01 | AC | 168 ms
34,560 KB |
testcase_02 | AC | 167 ms
34,560 KB |
testcase_03 | AC | 168 ms
34,460 KB |
testcase_04 | AC | 168 ms
34,560 KB |
testcase_05 | AC | 167 ms
34,524 KB |
testcase_06 | AC | 168 ms
34,560 KB |
testcase_07 | AC | 168 ms
34,560 KB |
testcase_08 | AC | 169 ms
34,688 KB |
testcase_09 | AC | 167 ms
34,560 KB |
testcase_10 | AC | 169 ms
34,560 KB |
testcase_11 | AC | 169 ms
34,560 KB |
testcase_12 | AC | 169 ms
34,816 KB |
testcase_13 | AC | 219 ms
40,972 KB |
testcase_14 | AC | 275 ms
45,252 KB |
testcase_15 | AC | 196 ms
39,156 KB |
testcase_16 | AC | 262 ms
44,304 KB |
testcase_17 | AC | 253 ms
43,252 KB |
testcase_18 | AC | 1,501 ms
114,172 KB |
testcase_19 | AC | 1,687 ms
119,372 KB |
testcase_20 | AC | 1,987 ms
133,276 KB |
testcase_21 | AC | 1,776 ms
123,840 KB |
testcase_22 | AC | 686 ms
69,960 KB |
testcase_23 | AC | 468 ms
57,532 KB |
testcase_24 | AC | 1,340 ms
100,944 KB |
testcase_25 | AC | 1,200 ms
100,668 KB |
testcase_26 | AC | 633 ms
68,764 KB |
testcase_27 | AC | 2,291 ms
147,060 KB |
testcase_28 | AC | 1,257 ms
147,024 KB |
testcase_29 | AC | 169 ms
34,432 KB |
testcase_30 | AC | 168 ms
34,432 KB |
testcase_31 | AC | 168 ms
34,560 KB |
testcase_32 | AC | 167 ms
34,560 KB |
ソースコード
#pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #include <atcoder/all> #include <iostream> // cout, endl, cin #include <string> // string, to_string, stoi #include <vector> // vector #include <algorithm> // min, max, swap, sort, reverse, lower_bound, upper_bound #include <utility> // pair, make_pair #include <tuple> // tuple, make_tuple #include <cstdint> // int64_t, int*_t #include <cstdio> // printf #include <map> // map #include <queue> // queue, priority_queue #include <set> // set #include <stack> // stack #include <deque> // deque #include <unordered_map> // unordered_map #include <unordered_set> // unordered_set #include <bitset> // bitset #include <cctype> // isupper, islower, isdigit, toupper, tolower #include <math.h> #include <iomanip> #include <functional> using namespace std; using namespace atcoder; #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define repi(i, a, b) for (int i = (int)(a); i < (int)(b); i++) typedef long long ll; typedef unsigned long long ull; const ll inf=1e18; using graph = vector<vector<int> > ; using P= pair<ll,ll>; using vi=vector<int>; using vvi=vector<vi>; using vll=vector<ll>; using vvll=vector<vll>; using vp=vector<P>; using vvp=vector<vp>; using vd=vector<double>; using vvd =vector<vd>; //string T="ABCDEFGHIJKLMNOPQRSTUVWXYZ"; //string S="abcdefghijklmnopqrstuvwxyz"; //g++ main.cpp -std=c++17 -I . //cout <<setprecision(20); //cout << fixed << setprecision(10); //cin.tie(0); ios::sync_with_stdio(false); const double PI = acos(-1); int vx[]={0,1,0,-1,-1,1,1,-1},vy[]={1,0,-1,0,1,1,-1,-1}; void putsYes(bool f){cout << (f?"Yes":"No") << endl;} void putsYES(bool f){cout << (f?"YES":"NO") << endl;} void putsFirst(bool f){cout << (f?"First":"Second") << endl;} void debug(int test){cout << "TEST" << " " << test << endl;} ll pow_pow(ll x,ll n,ll mod){ if(n==0) return 1; x%=mod; ll res=pow_pow(x*x%mod,n/2,mod); if(n&1)res=res*x%mod; return res; } ll gcd(ll x,ll y){ if(y==0)return x; return gcd(y,x%y); } ll lcm(ll x,ll y){ return ll(x/gcd(x,y))*y; } template<class T> bool chmin(T& a, T b) { if (a > b) { a = b; return true; } else return false; } template<class T> bool chmax(T& a, T b) { if (a < b) { a = b; return true; } else return false; } // https://youtu.be/L8grWxBlIZ4?t=9858 // https://youtu.be/ERZuLAxZffQ?t=4807 : optimize // https://youtu.be/8uowVvQ_-Mo?t=1329 : division ll mod =998244353; //ll mod =1e9+7; struct mint { ll x; // typedef long long ll; mint(ll x=0):x((x%mod+mod)%mod){} mint operator-() const { return mint(-x);} mint& operator+=(const mint a) { if ((x += a.x) >= mod) x -= mod; return *this; } mint& operator-=(const mint a) { if ((x += mod-a.x) >= mod) x -= mod; return *this; } mint& operator*=(const mint a) { (x *= a.x) %= mod; return *this;} mint operator+(const mint a) const { return mint(*this) += a;} mint operator-(const mint a) const { return mint(*this) -= a;} mint operator*(const mint a) const { return mint(*this) *= a;} mint pow(ll t) const { if (!t) return 1; mint a = pow(t>>1); a *= a; if (t&1) a *= *this; return a; } // for prime mod mint inv() const { return pow(mod-2);} mint& operator/=(const mint a) { return *this *= a.inv();} mint operator/(const mint a) const { return mint(*this) /= a;} }; istream& operator>>(istream& is, const mint& a) { return is >> a.x;} ostream& operator<<(ostream& os, const mint& a) { return os << a.x;} // combination mod prime // https://www.youtube.com/watch?v=8uowVvQ_-Mo&feature=youtu.be&t=1619 struct combination { vector<mint> fact, ifact; combination(int n):fact(n+1),ifact(n+1) { //assert(n < mod); fact[0] = 1; for (int i = 1; i <= n; ++i) fact[i] = fact[i-1]*i; ifact[n] = fact[n].inv(); for (int i = n; i >= 1; --i) ifact[i-1] = ifact[i]*i; } mint operator()(int n, int k) { if (k < 0 || k > n) return 0; if (n<0) return 0; return fact[n]*ifact[k]*ifact[n-k]; } mint p(int n, int k) { return fact[n]*ifact[n-k]; } } c(2000000); using vm=vector<mint> ; using vvm=vector<vm> ; // https://youtu.be/ylWYSurx10A?t=2352 template<typename T> struct Matrix { int h, w; vector<vector<T>> d; Matrix() {} Matrix(int h, int w, T val=0): h(h), w(w), d(h, vector<T>(w,val)) {} Matrix& unit() { // assert(h == w); rep(i,h) d[i][i] = 1; return *this; } const vector<T>& operator[](int i) const { return d[i];} vector<T>& operator[](int i) { return d[i];} Matrix operator*(const Matrix& a) const { // assert(w == a.h); Matrix r(h, a.w); rep(i,h)rep(k,w)rep(j,a.w) { r[i][j] += d[i][k]*a[k][j]; } return r; } Matrix pow(long long t) const { // assert(h == w); if (!t) return Matrix(h,h).unit(); if (t == 1) return *this; Matrix r = pow(t>>1); r = r*r; if (t&1) r = r*(*this); return r; } // https://youtu.be/-j02o6__jgs?t=11273 /* mint only mint det() { assert(h == w); mint res = 1; rep(k,h) { for (int i = k; i < h; ++i) { if (d[i][k] == 0) continue; if (i != k) { swap(d[i],d[k]); res = -res; } } if (d[k][k] == 0) return 0; res *= d[k][k]; mint inv = mint(1)/d[k][k]; rep(j,h) d[k][j] *= inv; for (int i = k+1; i < h; ++i) { mint c = d[i][k]; for (int j = k; j < h; ++j) d[i][j] -= d[k][j]*c; } } return res; } //*/ }; struct Compress{ vll a; map<ll,ll> d,d2; int cnt; Compress() :cnt(0) {} void add(ll x){a.push_back(x);} void init(){ set<ll>s(a.begin(),a.end()); for(auto y:s)d[y]=cnt++; for(auto&y:a)y=d[y]; for(auto u:d)d2[u.second]=u.first; } ll to(ll x){return d[x];} //変換先 ll from(ll x){return d2[x];}//逆引き int size(){return cnt;} }; void solve(int test){ int n; cin >> n; vi a(n); rep(i,n)cin >> a[i]; vi l(n),r(n); rep(i,n)cin >> l[i] >> r[i]; /* int ans=0; rep(i,n)repi(j,i+1,n){ if(a[i]+r[i]>=a[j] && a[j]-l[j]<=a[i])ans++; } */ vi id(n); rep(i,n){ int index=upper_bound(a.begin(),a.end(),a[i]+r[i])-a.begin(); index--; id[i]=index; } Compress comp; rep(i,n){ comp.add(a[i]); comp.add(a[i]-l[i]); } comp.init(); int m=comp.size(); ll ans=0; { priority_queue<P,vector<P>,greater<P> > q; rep(i,n)q.push(P(id[i],i)); fenwick_tree<int> fw(m); rep(i,n){ fw.add(comp.to(a[i]-l[i]),1); while(q.size()){ if(q.top().first==i){ int id=q.top().second; ans+=fw.sum(0,comp.to(a[id])+1); q.pop(); } else break; } } } { priority_queue<P,vector<P>,greater<P> > q; rep(i,n)q.push(P(i,i)); fenwick_tree<int> fw(m); rep(i,n){ fw.add(comp.to(a[i]-l[i]),1); while(q.size()){ if(q.top().first==i){ int id=q.top().second; ans-=fw.sum(0,comp.to(a[id])+1); q.pop(); } else break; } } } cout << ans << endl; } //g++ main.cpp -std=c++17 -I . int main(){cin.tie(0);ios::sync_with_stdio(false); int t=1;// cin >> t; rep(test,t)solve(test); }