結果
問題 | No.1584 Stones around Circle Pond |
ユーザー | tokusakurai |
提出日時 | 2021-07-02 23:11:56 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 2 ms / 2,000 ms |
コード長 | 2,495 bytes |
コンパイル時間 | 1,997 ms |
コンパイル使用メモリ | 197,920 KB |
最終ジャッジ日時 | 2025-01-22 16:51:50 |
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 * 3 |
other | AC * 58 |
ソースコード
#include <bits/stdc++.h> using namespace std; #define rep(i, n) for(int i = 0; i < n; i++) #define rep2(i, x, n) for(int i = x; i <= n; i++) #define rep3(i, x, n) for(int i = x; i >= n; i--) #define each(e, v) for(auto &e: v) #define pb push_back #define eb emplace_back #define all(x) x.begin(), x.end() #define rall(x) x.rbegin(), x.rend() #define sz(x) (int)x.size() using ll = long long; using pii = pair<int, int>; using pil = pair<int, ll>; using pli = pair<ll, int>; using pll = pair<ll, ll>; const int MOD = 1000000007; //const int MOD = 998244353; const int inf = (1<<30)-1; const ll INF = (1LL<<60)-1; template<typename T> bool chmax(T &x, const T &y) {return (x < y)? (x = y, true) : false;}; template<typename T> bool chmin(T &x, const T &y) {return (x > y)? (x = y, true) : false;}; struct io_setup{ io_setup(){ ios_base::sync_with_stdio(false); cin.tie(NULL); cout << fixed << setprecision(15); } } io_setup; int main(){ int N; ll L; cin >> N >> L; vector<ll> d(N), a(2*N); rep(i, N) cin >> d[i]; rep(i, 2*N) cin >> a[i]; ll K = -1; rep(i, N){ if((a[i]+a[N+i])%L != 0){ cout << "No\n"; return 0;; } if(K != -1 && K != (a[i]+a[N+i])/L){ cout << "No\n"; return 0; } K = (a[i]+a[N+i])/L; } vector<ll> c(2*N); rep(i, 2*N){ ll x; if(i%N == 0){ x = L+d[0]-d[N-1]; } else{ x = d[i%N]-d[(i-1)%N]; } ll y = a[i]-a[(i+2*N-1)%(2*N)]; if(K*x-y < 0 || (K*x-y)%(2*x) != 0){ cout << "No\n"; return 0; } c[i] = (K*x-y)/(2*x); } //rep(i, 2*N) cout << c[i]<< ' '; cout << '\n'; ll T = K; vector<ll> b(2*N, 0); rep(i, N){ ll x = c[i]-c[i+1]; if(x > 0) b[i] += x; else b[N+i] -= x; T -= abs(x); } if(T < 0 || (T&1)){ cout << "No\n"; return 0; } //cout << K << ' ' << T << '\n'; //rep(i, 2*N) cout << b[i] << ' '; cout << '\n'; vector<ll> res(2*N, L*(T/2)); rep(i, 2*N){ rep(j, 2*N){ ll x = (i < N? d[i] : L+d[i%N]); ll y = (j < N? d[j] : L+d[j%N]); if(x > y) swap(x, y); res[j] += b[i]*min(y-x, 2*L-(y-x)); } } rep(i, 2*N){ if(a[i] != res[i]){ cout << "No\n"; return 0; } } cout << "Yes\n"; }