Submission #1246393

#	Time	Username	Problem	Language	Result	Execution time	Memory
1246393		CyberCow	Mosaic (IOI24_mosaic)	C++20	5 / 100	1097 ms	23876 KiB

mosaic

#include "mosaic.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int a[5][200005];
int pref[5][200005];

int a1[200005][5];
int pref1[200005][5];

int gum(int x, int x1, int y, int y1)
{
  int arj = pref[x1][y1];
  if(x)arj -= pref[x - 1][y1];
  if(y)arj-=pref[x1][y - 1];
  if(x && y)arj += pref[x - 1][y - 1];
  return arj;
}

vector<long long> mosaic(vector<int> X, vector<int> Y,
                              vector<int> T, vector<int> B,
                              vector<int> L, vector<int> R) {
  int Q = (int)T.size();
  vector<long long> C(Q, 0);
  pref[0][0] = X[0];
  pref1[0][0] = X[0];
  a[0][0] = X[0];
  a1[0][0] = X[0];
  for (int i = 1; i < X.size(); i++)
  {
    a[0][i] = X[i];
    pref[0][i] = pref[0][i - 1] + a[0][i];
    if(i <= 2)
    {
      a1[0][i] = X[i];
      pref1[0][i] = pref1[0][i - 1] + a1[0][i];
    }
  }
  for (int i = 1; i < Y.size(); i++)
  {
    a1[i][0] = Y[i];
    pref1[i][0] = pref1[i - 1][0] + a1[i][0];
    if(i <= 2)
    {
      a[i][0] = Y[i];
      pref[i][0] = pref[i - 1][0] + a[i][0];
    }
  }
  int n = X.size();
  for (int i = 1; i < n; i++)
  {
    for (int j = 1; j < n; j++)
    {
      if(i <= 2)
      {
        if(a[i - 1][j] == 0 && a[i][j - 1] == 0)
        {
          a[i][j] = 1;
        }
        pref[i][j] = pref[i - 1][j] + pref[i][j - 1] - pref[i - 1][j - 1] + a[i][j];
      }
      if(j <= 2)
      {
        if(a1[i - 1][j] == 0 && a1[i][j - 1] == 0)
        {
          a1[i][j] = 1;
        }
        pref1[i][j] = pref1[i - 1][j] + pref1[i][j - 1] - pref1[i - 1][j - 1] + a1[i][j];
      }
    }
  }
  for (int i = 0; i < Q; i++)
  {
    C[i] = gum(T[i], B[i], L[i], R[i]);
  }
  return C;
}

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