oj.uz

Submission #1108616

# Submission time Handle Problem Language Result Execution time Memory
1108616 2024-11-04T15:38:08 Z Ludissey Mosaic (IOI24_mosaic) C++17
22 / 100
 1000 ms 1654500 KB 
#include "mosaic.h"
#include <bits/stdc++.h>
#define int long long
#define sz(a) (int)a.size()
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
 
using namespace std;

int q,n;
vector<vector<int>> lft;
vector<vector<int>>  top; 

vector<int> dia;
// X cest le top
// Y cest la gauche

// [le x][le y]

int todia(int x, int y){
  return (n-x-1)+y;
}

std::vector<long long> mosaic(std::vector<signed> X, std::vector<signed> Y, std::vector<signed> T, std::vector<signed> B,std::vector<signed> L, std::vector<signed> R) {
  q = sz(T); n=sz(Y);
  lft.resize(3,vector<int>(n,0));
  top.resize(n,vector<int>(3,0));
  dia.resize(n+n+4,0);
  for (int i = 0; i < n; i++)
  {
    lft[0][i]=Y[i];
    top[i][0]=X[i];
  }
  if(n>1){
    lft[1][0]=X[1];
    top[0][1]=Y[1];
    if(n>2){
      lft[2][0]=X[2];
      top[0][2]=Y[2];
    }
  }
  for (int i = 1; i < n&&n>1; i++)
  {
    top[i][1]=(top[i-1][1]==0&&top[i][0]==0);
    lft[1][i]=(lft[1][i-1]==0&&lft[0][i]==0);
  }
  for (int i = 1; i < n&&n>2; i++)
  {
    top[i][2]=(top[i-1][2]==0&&top[i][1]==0);
    lft[2][i]=(lft[2][i-1]==0&&lft[1][i]==0);
    dia[todia(i,2)]=top[i][2];
    dia[todia(2,i)]=lft[2][i];
  }
  vector<vector<int>> fullgrid(n,vector<int>(n,0));
  vector<vector<int>> fakegrid(n,vector<int>(n,0));
  vector<vector<int>> prefix(n,vector<int>(n,0));
  for (int i = 0; i < n; i++){
    for (int j = 0; j < min(n,3LL); j++)
    {
      fullgrid[i][j]=top[i][j];
      fullgrid[j][i]=lft[j][i];
    }
  }
  for (int i = 0; i < n; i++)
  {
    fakegrid[i][0]=X[i];
    fakegrid[0][i]=Y[i];
  }

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

  
  for (int i = 3; i < n; i++){
    for (int j = 3; j < n; j++)
    {
      fullgrid[i][j]=dia[todia(i,j)];
      fullgrid[j][i]=dia[todia(j,i)];
    }
  }
  for (int i = 0; i < n; i++){
    for (int j = 0; j < n; j++)
    {
      prefix[i][j]=fullgrid[i][j];
      if(i>0) prefix[i][j]+=prefix[i-1][j];
      if(j>0) prefix[i][j]+=prefix[i][j-1];
      if(i>0&&j>0) prefix[i][j]-=prefix[i-1][j-1];
      //cerr << fullgrid[j][i] << " ";
    }
    //cerr << "\n";
  }
  //cerr<<"\n";
  /*for (int i = 0; i < n; i++){
    for (int j = 0; j < n; j++)
    {
      //cerr << fakegrid[j][i] << " ";
      if(fakegrid[j][i]!=fullgrid[j][i]) cerr << "ERROR - " << i << " " << j << "\n";
      assert(fakegrid[j][i]==fullgrid[j][i]);
    }
    //cerr << "\n";
  }*/
  std::vector<long long> C(q, 0);
  for (int i = 0; i < q; i++)
  {
    int l=L[i],r=R[i],t=T[i],b=B[i];
    int sm=prefix[r][b];
    if(l>0) sm-=prefix[l-1][b];
    if(t>0) sm-=prefix[r][t-1];
    if(l>0&&t>0) sm+=prefix[l-1][t-1]; 
    C[i]=sm;
  }
  return C;
}

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 2 ms 1360 KB Output is correct
12 Correct 2 ms 1360 KB Output is correct
13 Correct 3 ms 1360 KB Output is correct
14 Correct 2 ms 1360 KB Output is correct
15 Correct 1 ms 592 KB Output is correct
16 Correct 1 ms 592 KB Output is correct
17 Correct 1 ms 592 KB Output is correct

Subtask #3
0.0 / 7.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1141 ms 1537372 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 2 ms 1360 KB Output is correct
12 Correct 2 ms 1360 KB Output is correct
13 Correct 3 ms 1360 KB Output is correct
14 Correct 2 ms 1360 KB Output is correct
15 Correct 1 ms 592 KB Output is correct
16 Correct 1 ms 592 KB Output is correct
17 Correct 1 ms 592 KB Output is correct
18 Correct 709 ms 599880 KB Output is correct
19 Correct 748 ms 599984 KB Output is correct
20 Correct 751 ms 599860 KB Output is correct
21 Correct 663 ms 599780 KB Output is correct
22 Correct 738 ms 599948 KB Output is correct
23 Correct 152 ms 102984 KB Output is correct
24 Correct 148 ms 103236 KB Output is correct
25 Correct 142 ms 103120 KB Output is correct

Subtask #5
0.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 9076 KB Output is correct
2 Execution timed out 1167 ms 1640984 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #6
0.0 / 22.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1192 ms 1654500 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #7
0.0 / 19.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1141 ms 1537372 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #8
0.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 2 ms 1360 KB Output is correct
13 Correct 2 ms 1360 KB Output is correct
14 Correct 3 ms 1360 KB Output is correct
15 Correct 2 ms 1360 KB Output is correct
16 Correct 1 ms 592 KB Output is correct
17 Correct 1 ms 592 KB Output is correct
18 Correct 1 ms 592 KB Output is correct
19 Execution timed out 1141 ms 1537372 KB Time limit exceeded
20 Halted 0 ms 0 KB -