結果
問題 | No.1997 X Lighting |
ユーザー |
|
提出日時 | 2022-07-01 23:05:10 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,948 bytes |
コンパイル時間 | 4,675 ms |
コンパイル使用メモリ | 257,624 KB |
最終ジャッジ日時 | 2025-01-30 03:30:55 |
ジャッジサーバーID (参考情報) |
judge5 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 2 WA * 1 |
other | AC * 1 WA * 29 |
ソースコード
#include<bits/stdc++.h> #include<atcoder/all> using namespace std; using namespace atcoder; typedef long long ll; typedef long double ld; #define REP(i, n) for (int i = 0; i < (n); ++i) #define REPR(i, n) for (int i = n - 1; i >= 0; --i) #define FOR(i, m, n) for (int i = m; i < n; ++i) #define FORR(i, m, n) for (int i = m; i >= n; --i) #define ALL(v) (v).begin(),(v).end() #define ALLR(v) (v).rbegin(),(v).rend() #define fi first #define se second #define PB push_back #define EB emplace_back template<typename T> using PQ = priority_queue<T>; template<typename T> using QP = priority_queue<T,vector<T>,greater<T>>; template<typename T>void debug(const T &v,ll h,ll w){for(ll i=0;i<h;i++){for(ll j=0;j<w;j++)cerr<<v[i][j]<<" \n"[j==w-1];}}; template<typename T>void debug(const T &v,ll n){for(ll i=0;i<n;i++)cerr<<v[i]<<" \n"[i==n-1];}; template<typename T>void debug(const vector<T>&v){debug(v,v.size());} template<typename T>void debug(const vector<vector<T>>&v){for(auto &vv:v)debug(vv,vv.size());} template<typename T>void debug(stack<T> st){while(!st.empty()){cerr<<st.top()<<" ";st.pop();}cerr<<endl;} template<typename T>void debug(queue<T> st){while(!st.empty()){cerr<<st.front()<<" ";st.pop();}cerr<<endl;} template<typename T>void debug(deque<T> st){while(!st.empty()){cerr<<st.front()<<" ";st.pop_front();}cerr<<endl;} template<typename T>void debug(PQ<T> st){while(!st.empty()){cerr<<st.top()<<" ";st.pop();}cerr<<endl;} template<typename T>void debug(QP<T> st){while(!st.empty()){cerr<<st.top()<<" ";st.pop();}cerr<<endl;} template<typename T>void debug(const set<T>&v){for(auto z:v)cerr<<z<<" ";cerr<<endl;} template<typename T>void debug(const multiset<T>&v){for(auto z:v)cerr<<z<<" ";cerr<<endl;} template<typename T,size_t size>void debug(const array<T, size> &a){for(auto z:a)cerr<<z<<" ";cerr<<endl;} template<typename T,typename V>void debug(const map<T,V>&v){for(auto z:v)cerr<<"["<<z.first<<"]="<<z.second<<",";cerr<<endl;} void foo() {cerr << endl;} template <class Head, class... Tail>void foo(Head&& head, Tail&&... tail){cerr << head << " ";foo(move(tail)...);} template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; } template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; } int popcount(ll x){return __builtin_popcountll(x);}; int poplow(ll x){return __builtin_ctzll(x);}; int pophigh(ll x){return 63 - __builtin_clzll(x);}; const ll INF=1LL<<60; const int inf=(1<<30)-1; // const int mod=1e9+7; const int mod=998244353; int dx[8]={1,0,-1,0,-1,-1,1,1}; int dy[8]={0,1,0,-1,-1,1,-1,1}; using mint=modint998244353; // using mint=modint1000000007; int main(){ cin.tie(0); ios::sync_with_stdio(false); ll n,m;cin >> n >> m; vector<ll> x(m),y(m); vector<ll> a,b,c,d; REP(i,m){ cin >> x[i] >> y[i]; x[i]--,y[i]--; if((x[i]+y[i])%2==0) a.PB(x[i]+y[i]); else c.PB(x[i]+y[i]); if((x[i]+n-1-y[i]+n-1)%2==0) b.PB(x[i]+n-1-y[i]); else d.PB(x[i]+n-1-y[i]); } sort(ALL(a)); a.erase(unique(ALL(a)),a.end()); sort(ALL(b)); b.erase(unique(ALL(b)),b.end()); sort(ALL(c)); c.erase(unique(ALL(c)),c.end()); sort(ALL(d)); d.erase(unique(ALL(d)),d.end()); ll ans=0; REP(i,a.size()) ans+=min(a[i]+1,n*2-a[i]-1); REP(i,b.size()) ans+=min(b[i]+1,n*2-b[i]-1); REP(i,c.size()) ans+=min(c[i]+1,n*2-c[i]-1); REP(i,d.size()) ans+=min(d[i]+1,n*2-d[i]-1); // debug(a); // debug(b); // debug(c); // debug(d); // n-1<=s<=3*n-3 // foo(ans); REP(i,a.size()){ int l=lower_bound(ALL(b),n-1-a[i])-b.begin(); int r=upper_bound(ALL(b),n*3-3-a[i])-b.begin(); ans-=r-l; // foo(a[i],l,r,r-l); } REP(i,c.size()){ int l=lower_bound(ALL(d),n-1-c[i])-d.begin(); int r=upper_bound(ALL(d),n*3-3-c[i])-d.begin(); ans-=r-l; // foo(c[i],l,r,r-l); } cout << ans << endl; }