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  1. // ~~ icebear ~~
  2. #include <bits/stdc++.h>
  3. using namespace std;
  4.  
  5. typedef long long ll;
  6. typedef pair<int, int> ii;
  7. typedef pair<int, ii> iii;
  8.  
  9. template<class T>
  10.     bool minimize(T &a, const T &b) {
  11.         if (a > b) return a = b, true;
  12.         return false;
  13.     }
  14.  
  15. template<class T>
  16.     bool maximize(T &a, const T &b) {
  17.         if (a < b) return a = b, true;
  18.         return false;
  19.     }
  20.  
  21. #define FOR(i,a,b) for(int i=(a); i<=(b); ++i)
  22. #define FORR(i,a,b) for(int i=(a); i>=(b); --i)
  23. #define REP(i, n) for(int i=0; i<(n); ++i)
  24. #define RED(i, n) for(int i=(n)-1; i>=0; --i)
  25. #define MASK(i) (1LL << (i))
  26. #define BIT(S, i) (((S) >> (i)) & 1)
  27. #define mp make_pair
  28. #define pb push_back
  29. #define fi first
  30. #define se second
  31. #define all(x) x.begin(), x.end()
  32. #define task "icebear"
  33. /*END OF TEMPLATE. ICEBEAR AND THE CAT WILL WIN VOI26 */
  34.  
  35. const int MOD = 1e9 + 7;
  36. const int inf = 1e9 + 27092008;
  37. const ll INF = 1e18 + 27092008;
  38. const int N = 500 + 5;
  39. const int CIRCLE = 60;
  40. const int dx[] = {1, -1, 0, 0};
  41. const int dy[] = {0, 0, 1, -1};
  42. int numType, limBoard, numObs;
  43. ii src, dest;
  44. struct Obstacle {
  45.     int x, y, r, t;
  46. } obs[15005];
  47.  
  48. bool board[CIRCLE + 5][N][N];
  49. int dist[CIRCLE + 5][N][N];
  50.  
  51. void init(void) {
  52.     cin >> numType >> limBoard >> numObs;
  53.     FOR(i, 1, numObs) cin >> obs[i].x >> obs[i].y >> obs[i].r >> obs[i].t;
  54.     cin >> src.fi >> src.se >> dest.fi >> dest.se;
  55. }
  56.  
  57. void process(void) {
  58.     FOR(s, 0, CIRCLE) {
  59.         FOR(i, 1, numObs) {
  60.             int radius = (obs[i].t + s) % obs[i].r;
  61.             FOR(j, -radius, radius) FOR(k, -radius, radius)
  62.                 if (abs(j) + abs(k) <= radius && obs[i].x + j > 0 && obs[i].x + j <= limBoard && obs[i].y + k > 0 && obs[i].y + k <= limBoard)
  63.                     board[s][obs[i].x + j][obs[i].y + k] = true;
  64.         }
  65.     }
  66.  
  67.     FOR(i, 1, limBoard) FOR(j, 1, limBoard) assert(board[0][i][j] == board[CIRCLE][i][j]);
  68.  
  69.     if (numType == 1) {
  70.         int ans = 0;
  71.         FOR(s, 0, CIRCLE) {
  72.             int cnt = 0;
  73.             FOR(i, 1, limBoard) FOR(j, 1, limBoard) cnt += board[s][i][j];
  74.             maximize(ans, cnt);
  75.         }
  76.         cout << ans;
  77.     } else {
  78.         struct stateCell {
  79.             int x, y, s;
  80.             stateCell(int _x = 0, int _y = 0, int _s = 0):
  81.                 x(_x), y(_y), s(_s) {}
  82.         };
  83.         memset(dist, 0x3f, sizeof dist);
  84.         queue<stateCell> Q;
  85.         dist[0][src.fi][src.se] = 0;
  86.         Q.push(stateCell(src.fi, src.se, 0));
  87.         while(!Q.empty()) {
  88.             auto T = Q.front(); Q.pop();
  89.             if (T.x == dest.fi && T.y == dest.se) {
  90.                 cout << dist[T.s][T.x][T.y];
  91.                 exit(0);
  92.             }
  93.             if (board[(T.s + 1) % CIRCLE][T.x][T.y] == false && minimize(dist[(T.s + 1) % CIRCLE][T.x][T.y], dist[T.s][T.x][T.y] + 1))
  94.                 Q.push(stateCell(T.x, T.y, (T.s + 1) % CIRCLE));
  95.             REP(d, 4) {
  96.                 int u = T.x + dx[d];
  97.                 int v = T.y + dy[d];
  98.                 if (u < 1 || u > limBoard || v < 1 || v > limBoard || board[(T.s + 1) % CIRCLE][u][v]) continue;
  99.                 if (minimize(dist[(T.s + 1) % CIRCLE][u][v], dist[T.s][T.x][T.y] + 1))
  100.                     Q.push(stateCell(u, v, (T.s + 1) % CIRCLE));
  101.             }
  102.         }
  103.     }
  104. }
  105.  
  106. int main() {
  107.     ios_base::sync_with_stdio(0);
  108.     cin.tie(0); cout.tie(0);
  109.     if (fopen(task".inp", "r")) {
  110.         freopen(task".inp", "r", stdin);
  111.         freopen(task".out", "w", stdout);
  112.     }
  113.     int tc = 1;
  114. //    cin >> tc;
  115.     while(tc--) {
  116.         init();
  117.         process();
  118.     }
  119.     return 0;
  120. }
  121.  
Success #stdin #stdout 0.01s 68820KB
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https://ideone.com/3sH9sL
language:
C++14 (gcc 8.3)
created:
2 days ago
visibility:
public

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