結果
問題 | No.2225 Treasure Searching Rod (Easy) |
ユーザー | akua |
提出日時 | 2023-02-24 22:30:37 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 388 ms / 2,000 ms |
コード長 | 6,984 bytes |
コンパイル時間 | 6,797 ms |
コンパイル使用メモリ | 239,672 KB |
実行使用メモリ | 81,552 KB |
最終ジャッジ日時 | 2024-09-13 05:45:02 |
合計ジャッジ時間 | 17,566 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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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 | 384 ms
81,356 KB |
testcase_01 | AC | 385 ms
81,444 KB |
testcase_02 | AC | 384 ms
81,360 KB |
testcase_03 | AC | 385 ms
81,484 KB |
testcase_04 | AC | 384 ms
81,356 KB |
testcase_05 | AC | 383 ms
81,360 KB |
testcase_06 | AC | 384 ms
81,392 KB |
testcase_07 | AC | 385 ms
81,492 KB |
testcase_08 | AC | 386 ms
81,532 KB |
testcase_09 | AC | 386 ms
81,424 KB |
testcase_10 | AC | 384 ms
81,460 KB |
testcase_11 | AC | 385 ms
81,300 KB |
testcase_12 | AC | 388 ms
81,488 KB |
testcase_13 | AC | 388 ms
81,552 KB |
testcase_14 | AC | 387 ms
81,420 KB |
testcase_15 | AC | 384 ms
81,444 KB |
testcase_16 | AC | 384 ms
81,364 KB |
testcase_17 | AC | 384 ms
81,524 KB |
testcase_18 | AC | 384 ms
81,360 KB |
testcase_19 | AC | 384 ms
81,512 KB |
testcase_20 | AC | 387 ms
81,332 KB |
testcase_21 | AC | 384 ms
81,536 KB |
testcase_22 | AC | 383 ms
81,472 KB |
testcase_23 | AC | 385 ms
81,500 KB |
testcase_24 | AC | 385 ms
81,424 KB |
testcase_25 | AC | 386 ms
81,364 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;} template<class T> void debug(T s){cout << "test" << " " << s << 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; 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; return fact[n]*ifact[k]*ifact[n-k]; } mint p(int n, int k) { return fact[n]*ifact[n-k]; } } c(5000000); using vm=vector<mint> ; using vvm=vector<vm> ; ll sqrt_(ll x) { ll l = 0, r = ll(3e9)+1; while (l+1<r) { ll c = (l+r)/2; if (c*c <= x) l = c; else r = c; } return l; } int valid(int x,int y,int h,int w){ if(x>=0 && y>=0 && x<h && y<w)return 1; else return 0; } struct edge{ int to; int w; edge(int to,int w) : to(to),w(w){} }; //snuke 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(ll 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; } }; struct S{ long long value; int size; }; using F = long long; S op(S a, S b){ return {a.value+b.value, a.size+b.size}; } S e(){ return {0, 0}; } S mapping(F f, S x){ return {x.value + f*x.size, x.size}; } F composition(F f, F g){ return f+g; } F id(){ return 0; } //g++ main.cpp -std=c++17 -I . int main(){cin.tie(0);ios::sync_with_stdio(false); int h,w,k; cin >> h >> w >> k; vvp g(h+w+1); rep(i,k){ int x,y,v; cin >> x>> y >> v; g[x+y].push_back(P(x-y,v)); } rep(i,h+w+1)sort(g[i].begin(),g[i].end()); vll maxv(h+w+1,-inf),minv(h+w+1,inf); { int i=1; for(ll j=1; j<=w; j++){ chmax(maxv[i+j],i-j); chmin(minv[i+j],i-j); } i=h; for(ll j=1; j<=w; j++){ chmax(maxv[i+j],i-j); chmin(minv[i+j],i-j); } } { int j=1; for(ll i=1; i<=h; i++){ chmax(maxv[i+j],i-j); chmin(minv[i+j],i-j); } j=w; for(ll i=1; i<=h; i++){ chmax(maxv[i+j],i-j); chmin(minv[i+j],i-j); } } int N=h+w+5; vector<S> v(N, {0, 1}); lazy_segtree<S, op, e, F, mapping, composition, id> segodd(v); lazy_segtree<S, op, e, F, mapping, composition, id> segeven(v); mint ans=0; for(int x=2; x<=h+w; x++){ minv[x]+=w-1; maxv[x]+=w-1; if(minv[x]%2==0)segeven.apply(minv[x]/2,maxv[x]/2+1,1); else segodd.apply(minv[x]/2,maxv[x]/2+1,1); for(auto u:g[x]){ int now=u.first+w-1; if(now%2){ ans+=mint(1)*segodd.prod(0,now/2+1).value*u.second; ans+=mint(1)*segeven.prod(0,now/2+1).value*u.second; } else { ans+=mint(1)*segeven.prod(0,now/2+1).value*u.second; if(now/2)ans+=mint(1)*segodd.prod(0,now/2).value*u.second; } //cout << ans << endl; } } cout << ans << endl; }