Ruudukko

input/code.cpp: In function 'int main()':
input/code.cpp:11:28: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
   11 |       else for (int t = g[2&j^1]+j/6, k = g[j+j&2]+j%2; k <= N; fen[t][k] += 1-30%j, k += k & -k);
      |                           ~^~
input/code.cpp:11:46: warning: suggest parentheses around '+' in operand of '&' [-Wparentheses]
   11 |       else for (int t = g[2&j^1]+j/6, k = g[j+j&2]+j%2; k <= N; fen[t][k] += 1-30%j, k += k & -k);
      |                                             ~^~

#include <bits/stdc++.h>
using namespace std;
#define N 2003
int n, m, fen[N][N], g[4], r;

int main() {
  ios_base::sync_with_stdio(0); cin.tie(0); cin>>n>>m;
  for (int q = 0; q < m; q++) {
    for (int j = 0; j < 8; j++) {
      if (j < 4) cin>>g[j];
      else for (int t = g[2&j^1]+j/6, k = g[j+j&2]+j%2; k <= N; fen[t][k] += 1-30%j, k += k & -k);
    }
  }

  for (int y = 1; y <= n; y++, r = 0) {
    for (int x = 1; x <= n; x++) {
      for (int k = y; k >= 1; r += fen[x][k], k -= k & -k);
      cout << ".#"[r&1];
    } cout<<"\n";
  }
}

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

Test 2

Group: 2, 3

Verdict: ACCEPTED

Test 3

Group: 2, 3

Verdict: ACCEPTED

Test 4

Group: 3

Verdict: ACCEPTED

Test 5

Group: 3

Verdict: ACCEPTED