結果
問題 | No.1864 Shortest Paths Counting |
ユーザー | fumofumofuni |
提出日時 | 2022-03-04 22:57:26 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 263 ms / 2,000 ms |
コード長 | 5,009 bytes |
コンパイル時間 | 2,156 ms |
コンパイル使用メモリ | 220,028 KB |
実行使用メモリ | 12,160 KB |
最終ジャッジ日時 | 2024-07-18 21:32:42 |
合計ジャッジ時間 | 7,904 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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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 | 1 ms
5,248 KB |
testcase_01 | AC | 1 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 1 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 1 ms
5,376 KB |
testcase_06 | AC | 1 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 244 ms
12,032 KB |
testcase_10 | AC | 246 ms
12,032 KB |
testcase_11 | AC | 241 ms
11,904 KB |
testcase_12 | AC | 241 ms
12,032 KB |
testcase_13 | AC | 245 ms
12,032 KB |
testcase_14 | AC | 245 ms
12,032 KB |
testcase_15 | AC | 245 ms
12,032 KB |
testcase_16 | AC | 250 ms
12,024 KB |
testcase_17 | AC | 263 ms
12,032 KB |
testcase_18 | AC | 261 ms
12,032 KB |
testcase_19 | AC | 255 ms
12,032 KB |
testcase_20 | AC | 244 ms
12,032 KB |
testcase_21 | AC | 242 ms
11,904 KB |
testcase_22 | AC | 243 ms
12,032 KB |
testcase_23 | AC | 242 ms
12,032 KB |
testcase_24 | AC | 2 ms
5,376 KB |
testcase_25 | AC | 189 ms
12,160 KB |
testcase_26 | AC | 152 ms
12,032 KB |
コンパイルメッセージ
main.cpp: In function 'int main()': main.cpp:151:11: warning: 'gx' may be used uninitialized [-Wmaybe-uninitialized] 151 | gx*=-1;sx*=-1; | ~~^~~~ main.cpp:142:14: note: 'gx' was declared here 142 | ll sx,sy,gx,gy; | ^~ main.cpp:151:18: warning: 'sx' may be used uninitialized [-Wmaybe-uninitialized] 151 | gx*=-1;sx*=-1; | ~~^~~~ main.cpp:142:8: note: 'sx' was declared here 142 | ll sx,sy,gx,gy; | ^~ main.cpp:155:11: warning: 'gy' may be used uninitialized [-Wmaybe-uninitialized] 155 | gy*=-1;sy*=-1; | ~~^~~~ main.cpp:142:17: note: 'gy' was declared here 142 | ll sx,sy,gx,gy; | ^~ main.cpp:155:18: warning: 'sy' may be used uninitialized [-Wmaybe-uninitialized] 155 | gy*=-1;sy*=-1; | ~~^~~~ main.cpp:142:11: note: 'sy' was declared here 142 | ll sx,sy,gx,gy; | ^~
ソースコード
#include<bits/stdc++.h> using namespace std; #define rep(i,n) for(ll i=0;i<n;i++) #define repl(i,l,r) for(ll i=(l);i<(r);i++) #define per(i,n) for(ll i=(n)-1;i>=0;i--) #define perl(i,r,l) for(ll i=r-1;i>=l;i--) #define fi first #define se second #define pb push_back #define ins insert #define pqueue(x) priority_queue<x,vector<x>,greater<x>> #define all(x) (x).begin(),(x).end() #define CST(x) cout<<fixed<<setprecision(x) #define vtpl(x,y,z) vector<tuple<x,y,z>> #define rev(x) reverse(x); using ll=long long; using vl=vector<ll>; using vvl=vector<vector<ll>>; using pl=pair<ll,ll>; using vpl=vector<pl>; using vvpl=vector<vpl>; const ll MOD=1000000007; const ll MOD9=998244353; const int inf=1e9+10; const ll INF=4e17; const ll dy[9]={0,-1,0,1,1,1,-1,-1,0}; const ll dx[9]={-1,0,1,0,1,-1,1,-1,0}; template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; } template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; } template <class T> class SegTree { int n;// 葉の数 vector<T> data;// データを格納するvector T def; // 初期値かつ単位元 function<T(T, T)> operation; // 区間クエリで使う処理 function<T(T, T)> update;// 点更新で使う処理 T find(int a, int b) { T val_left = def, val_right = def; for (a += (n - 1), b += (n - 1); a < b; a >>= 1, b >>= 1) { if ((a & 1) == 0){ val_left = operation(val_left, data[a]); } if ((b & 1) == 0){ val_right = operation(data[--b],val_right); } } return operation(val_left, val_right); } public: // _n:必要サイズ, _def:初期値かつ単位元, _operation:クエリ関数, // _update:更新関数 SegTree(size_t _n, T _def, function<T(T, T)> _operation, function<T(T, T)> _update=[](T a,T b){return b;}) : def(_def), operation(_operation), update(_update) { n = 1; while (n < _n) { n *= 2; } data = vector<T>(2 * n - 1, def); } void set(int i, T x) { data[i + n - 1] = x; } void build() { for (int k=n-2;k>=0;k--) data[k] = operation(data[2*k+1],data[2*k+2]); } // 場所i(0-indexed)の値をxで更新 void change(int i, T x) { i += n - 1; data[i] = update(data[i], x); while (i > 0) { i = (i - 1) / 2; data[i] = operation(data[i * 2 + 1], data[i * 2 + 2]); } } // [a, b)の区間クエリを実行 T query(int a, int b) { //return _query(a, b, 0, 0, n); return find(a,b); } // 添字でアクセス T operator[](int i) { return data[i + n - 1]; } }; const int mod = MOD9; const int max_n = 200005; 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; } bool operator==(const mint &p) const { return x == p.x; } bool operator!=(const mint &p) const { return x != p.x; } // 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, mint& a) { return is >> a.x;} ostream& operator<<(ostream& os, const mint& a) { return os << a.x;} using vm=vector<mint>; using vvm=vector<vm>; int main(){ ll n;cin >> n; ll sx,sy,gx,gy; vpl v(n); rep(i,n){ ll a,b;cin >> a >> b; v[i]={a-b,a+b}; if(i==0)sx=a-b,sy=a+b; if(i==n-1)gx=a-b,gy=a+b; } if(gx-sx<0){ gx*=-1;sx*=-1; rep(i,n)v[i].first*=-1; } if(gy-sy<0){ gy*=-1;sy*=-1; rep(i,n)v[i].second*=-1; } vl py(n);rep(i,n)py[i]=v[i].second; sort(all(py));py.erase(unique(all(py)),py.end()); SegTree<mint> st(n,0,[](mint a,mint b){return a+b;},[](mint a,mint b){return a+b;}); sort(all(v)); rep(i,n){ ll idx=lower_bound(all(py),v[i].second)-py.begin(); if(v[i].first==sx&&v[i].second==sy){ st.change(idx,1); } else if(v[i].first==gx&&v[i].second==gy){ cout << st.query(0,idx+1) << endl; } else{ mint q=st.query(0,idx+1); st.change(idx,q); } } }