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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#691149 | #2943. Neighbors | nickbelov | WA | 0ms | 3952kb | C++20 | 1.9kb | 2024-10-31 10:08:21 | 2024-10-31 10:08:21 |
Judging History
answer
#include <vector>
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
using namespace std;
#define F(i, k) for(int16_t i = 0; i < (k); ++i)
#define G(x) int16_t x; cin >> x;
#define D for(int i = 1; i <= n; ++i) for(int j = 1; j <= m; ++j) cout << gr[i][j] << " \n"[j == m];
#define MT(r, c, i) (!i ? r : c)
#define N 15
#define M 2
int16_t n = -1, m = -1;
int16_t gr[N][N], mk[M][N];int8_t du[N][N], dl[N][N];
int16_t tbl[N][3];
#define ADD(r, c, x) { gr[r][c] ^= x; F(i, M) mk[i][MT(r, c, i)] ^= 1 << x; }
bool bT(int16_t r, int16_t c) {
if(r > n) return true;
int16_t rI = r + (c == m), cI = c % m + 1;
if(gr[r][c]) return bT(rI, cI);
int16_t mask = mk[0][r] & mk[1][c]
& tbl[gr[r - 1][c]][du[r][c]] & tbl[gr[r][c - 1]][dl[r][c]]
& tbl[gr[r + 1][c]][du[r + 1][c]] & tbl[gr[r][c + 1]][dl[r][c + 1]];
for(int16_t x = __builtin_ctzll(mask); mask >> x; ++x) if((mask >> x) & 1) {
ADD(r, c, x);
if(bT(rI, cI)) return true;
ADD(r, c, x);
}
return false;
}
void init() {
cin >> n; G(k) m = n;
fill_n(tbl[0], 3, (1 << 15) - 1);
F(i, n + 1) if(i) {
tbl[i][0] = (1 << 15) - 1; //no constraint
tbl[i][2] = 5 << (i - 1); //diamond
tbl[i][1] = ~tbl[i][2]; //no diamond
}
F(q, 2 * n - 1) if(q & 1) {
int16_t r = (q + 1) / 2;
string s; cin >> s;
F(i, n) du[r + 1][i + 1] = 1 + (s[i] == '1');
} else {
int16_t r = q / 2;
string s; cin >> s;
F(i, n) if(i) dl[r + 1][i + 1] = 1 + (s[i - 1] == '1');
}
F(i, M) fill_n(mk[i], N, (1 << (n + 1)) - 2);
while(k--) {
G(r) G(c) G(v)
ADD(r, c, v);
}
}
int main() {
clock_t t = clock();
init(); bT(1, 1); D
cout << (clock() - t) / (double)(CLOCKS_PER_SEC) << '\n';
}
Details
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Test #1:
score: 0
Wrong Answer
time: 0ms
memory: 3952kb
input:
7 6 100000 0111010 100000 0000000 001001 0010010 000000 0000000 000000 0000000 001000 0001010 000001 2 7 7 6 1 2 3 3 2 7 6 2 5 3 6 4 7 6
output:
4 3 5 7 1 6 2 1 2 4 6 3 5 7 7 5 2 1 6 3 4 3 7 1 5 2 4 6 5 1 6 2 4 7 3 2 6 3 4 7 1 5 6 4 7 3 5 2 1 0
result:
wrong output format Extra information in the output file