Illuminati

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

const int N = 3008;
ll A[N*N/64];

void setb(int i, int j) {
  int d = i * N + j;
  A[d / 64] |= 1ull<<(d % 64);
}

bool getb(int i, int j) {
  int d = i * N + j;
  return A[d/64] & (1ull<<(d % 64));
}

int main() {
  int n;
  string s;
  cin >> n;
  for (int i = 0; i < n; ++i) {
    cin >> s;
    for (int j = 0; j < n; ++j) {
      if (s[j] == '1') setb(i,j);
    }
  }
  ll ans = 0;
  for (int i = 0; i < n; ++i) {
    for (int j = i+1; j < n; ++j) {
      if (!getb(i,j)) continue;
      int i0 = i*N+j+1;
      int j0 = j*N+j+1;
      int a0 = (j+1) % 64;
      ans += __builtin_popcountll((A[i0/64] & A[j0/64]) & ~((1ull<<a0)-1));
      i0 /= 64; j0 /= 64;
      for (; i0 < (i*N+N)/64; ++i0, ++j0) {
        ans += __builtin_popcountll(A[i0] & A[j0]);
      }
    }
  }
  cout << ans << '\n';
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: WRONG ANSWER

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: WRONG ANSWER

Test 9

Verdict: ACCEPTED

Test 10

Verdict: WRONG ANSWER

Test 11

Verdict: ACCEPTED

Test 12

Verdict: WRONG ANSWER

Test 13

Verdict: ACCEPTED

Test 14

Verdict: ACCEPTED

Test 15

Verdict: ACCEPTED

Test 16

Verdict: WRONG ANSWER

Test 17

Verdict: ACCEPTED

Test 18

Verdict: WRONG ANSWER

Test 19

Verdict: WRONG ANSWER

Test 20

Verdict: ACCEPTED

Test 21

Verdict: WRONG ANSWER

Test 22

Verdict: WRONG ANSWER

Test 23

Verdict: ACCEPTED

Test 24

Verdict: WRONG ANSWER

Test 25

Verdict: ACCEPTED

Test 26

Verdict: ACCEPTED

Test 27

Verdict: ACCEPTED

Test 28

Verdict: WRONG ANSWER

Test 29

Verdict: WRONG ANSWER

Test 30

Verdict: WRONG ANSWER

Test 31

Verdict: WRONG ANSWER

Test 32

Verdict: WRONG ANSWER

Test 33

Verdict: WRONG ANSWER

Test 34

Verdict: WRONG ANSWER

Test 35

Verdict: WRONG ANSWER

Test 36

Verdict: WRONG ANSWER

Test 37

Verdict: WRONG ANSWER

Test 38

Verdict: WRONG ANSWER

Test 39

Verdict: WRONG ANSWER

Test 40

Verdict: WRONG ANSWER

Test 41

Verdict: WRONG ANSWER

Test 42

Verdict: WRONG ANSWER

Test 43

Verdict: WRONG ANSWER

Test 44

Verdict: WRONG ANSWER

Test 45

Verdict: WRONG ANSWER

Test 46

Verdict: WRONG ANSWER

Test 47

Verdict: WRONG ANSWER

Test 48

Verdict: WRONG ANSWER

Test 49

Verdict: WRONG ANSWER

Test 50

Verdict: WRONG ANSWER

Test 51

Verdict: WRONG ANSWER

Test 52

Verdict: WRONG ANSWER

Test 53

Verdict: WRONG ANSWER