Submission #1103547

#	Time	Username	Problem	Language	Result	Execution time	Memory
1103547		duckindog	Mosaic (IOI24_mosaic)	C++17	22 / 100	1211 ms	1618964 KiB

mosaic

#include <bits/stdc++.h>

#ifndef LOCAL
#include "mosaic.h"
#endif

using namespace std;

int cal(int x, int y) { return (x | y) ^ 1; };
vector<long long> mosaic(vector<int> X, vector<int> Y,
                          vector<int> T, vector<int> B,
                          vector<int> L, vector<int> R) {
  int n = X.size();
  int q = (int)T.size();
  vector<long long> C(q, 0);
  
  vector<vector<int>> a(n, vector<int>(n)), d = a;
  for (int i = 0; i < n; ++i) {
    a[0][i] = X[i];
    a[i][0] = Y[i];
  }
  for (int i = 1; i < n; ++i) { 
    for (int j = 1; j < n; ++j) a[i][j] = cal(a[i - 1][j], a[i][j - 1]);
  }

  for (int i = 0; i < n; ++i) { 
    for (int j = 0; j < n; ++j) { 
      d[i][j] = a[i][j];
      if (i) d[i][j] += d[i - 1][j];
      if (j) d[i][j] += d[i][j - 1];
      if (i && j) d[i][j] -= d[i - 1][j - 1];
    }
  }

  for (int i = 0; i < q; ++i) { 
    int t = T[i], b = B[i], l = L[i], r = R[i];
    int ret = d[b][r];
    if (t) ret -= d[t - 1][r];
    if (l) ret -= d[b][l - 1];
    if (t && l) ret += d[t - 1][l - 1];

    C[i] = ret;
  }

  return C;
}

#ifdef LOCAL
int32_t main() {
  cin.tie(0)->sync_with_stdio(0);
  int N;
  assert(1 == scanf("%d", &N));
  std::vector<int> X(N), Y(N);
  for (int i = 0; i < N; i++)
    assert(1 == scanf("%d", &X[i]));
  for (int i = 0; i < N; i++)
    assert(1 == scanf("%d", &Y[i]));
  int Q;
  assert(1 == scanf("%d", &Q));
  std::vector<int> T(Q), B(Q), L(Q), R(Q);
  for (int k = 0; k < Q; k++)
    assert(4 == scanf("%d%d%d%d", &T[k], &B[k], &L[k], &R[k]));
  fclose(stdin);

  std::vector<long long> C = mosaic(X, Y, T, B, L, R);

  int S = (int)C.size();
  for (int k = 0; k < S; k++)
    printf("%lld\n", C[k]);
  fclose(stdout);

  return 0;
}
#endif

• Subtask 0: 0 / 0
• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 0 / 7
• Subtask 4: 10 / 10
• Subtask 5: 0 / 8
• Subtask 6: 0 / 22
• Subtask 7: 0 / 19
• Subtask 8: 0 / 22