| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 936669 |
2024-03-02T13:20:39 Z |
maomao90 |
Mars (APIO22_mars) |
C++17 |
|
1 ms |
352 KB |
// Hallelujah, praise the one who set me free
// Hallelujah, death has lost its grip on me
// You have broken every chain, There's salvation in your name
// Jesus Christ, my living hope
#include <bits/stdc++.h>
#include "mars.h"
using namespace std;
#define REP(i, s, e) for (int i = (s); i < (e); i++)
#define RREP(i, s, e) for (int i = (s); i >= (e); i--)
template <class T>
inline bool mnto(T& a, T b) {return a > b ? a = b, 1 : 0;}
template <class T>
inline bool mxto(T& a, T b) {return a < b ? a = b, 1: 0;}
typedef unsigned long long ull;
typedef long long ll;
typedef long double ld;
#define FI first
#define SE second
typedef pair<int, int> ii;
typedef pair<ll, ll> pll;
typedef tuple<int, int, int> iii;
#define ALL(_a) _a.begin(), _a.end()
#define SZ(_a) (int) _a.size()
#define pb push_back
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<ii> vii;
typedef vector<iii> viii;
#ifndef DEBUG
#define cerr if (0) cerr
#endif
const int INF = 1000000005;
const ll LINF = 1000000000000000005ll;
const int MAXN = 200005;
const int dirr[] = {1, 0, -1, 0}, dirc[] = {0, 1, 0, -1};
const ii corners[] = {{0, 0}, {0, 2}, {2, 2}, {2, 0}};
string process(vector<vector<string>> a, int i, int j, int k, int n) {
int tn = 3 + 2 * k, m = 2 * (n - k - 1);
int HALFN = (n + 1) / 2 * 2 + 1;
int BORDER = 2 * n - HALFN + 1;
int SIDES[] = {BORDER, BORDER, HALFN, HALFN};
// 3 + 2 * k == HALFN
// k = (HALFN - 3) / 2
if (tn <= HALFN) {
vector<string> grid(tn, string(tn, '0'));
REP (x, 0, 3) {
REP (y, 0, 3) {
REP (p, 0, (k + 1) * (k + 1)) {
int r = x + 2 * (p / (k + 1)),
c = y + 2 * (p % (k + 1));
grid[r][c] = a[x][y][p];
}
}
}
//cerr << i << ' ' << j << ' ' << k << '\n';
//REP (r, 0, tn) {
//cerr << grid[r] << '\n';
//}
string res;
if (tn == HALFN) {
if (m - 1 <= i && m - 2 <= j) {
// m - 1 <= r <= 2 * n
// 2 * n - HALFN + 1 <= r <= 2 * n
// m - 2 <= c <= 2 * n
//for (int r = 2 * n - (m - i); r >= i; r -= 2) {
//for (int c = 2 * n - (m - j); c >= j; c -= 3) {
for (int r = 2 * n - (m - i); r >= BORDER; r -= 2) {
for (int c = 2 * n - (m - j); c >= BORDER; c -= 3) {
res += grid[r - i][c - j];
}
}
} else if (i < 2 && j < 3) {
//for (int r = i; r < i + tn; r += 2) {
//for (int c = j; c < j + tn; c += 3) {
for (int r = i; r < BORDER; r += 2) {
for (int c = j; c < BORDER; c += 3) {
res += grid[r - i][c - j];
}
}
} else if (i < 3 && m - 1 <= j) {
//for (int r = i; r < i + tn; r += 3) {
for (int r = i; r < BORDER; r += 3) {
//for (int c = 2 * n - (m - j); c >= j; c -= 2) {
for (int c = 2 * n - (m - j); c >= BORDER; c -= 2) {
res += grid[r - i][c - j];
}
}
} else if (m - 2 <= i && j < 2) {
//for (int r = 2 * n - (m - i); r >= i; r -= 3) {
for (int r = 2 * n - (m - i); r >= BORDER; r -= 3) {
//for (int c = j; c < j + tn; c += 2) {
for (int c = j; c < BORDER; c += 2) {
res += grid[r - i][c - j];
}
}
}
}
for (int r = 0; r < tn; r += 2) {
for (int c = 0; c < tn; c += 2) {
res += grid[r][c];
}
}
res.resize(100, '0');
return res;
} else if (k < n - 2) {
if (m - 1 <= i && m - 2 <= j) {
return a[2][2];
} else if (i < 2 && j < 3) {
return a[0][0];
} else if (i < 3 && m - 1 <= j) {
return a[0][2];
} else if (m - 2 <= i && j < 2) {
return a[2][0];
} else {
return string(100, '0');
}
} else if (k == n - 2) {
vector<string> grid;
if (i == 2 && j == 2) {
grid = vector<string>(HALFN, string(HALFN, '0'));
REP (di, 1, 3) {
REP (dj, 0, 3) {
int ptr = 0;
for (int r = 2 * n - (2 - di); r >= BORDER; r -= 2) {
for (int c = 2 * n - (2 - dj); c >= BORDER; c -= 3) {
grid[r - BORDER][c - BORDER] = a[di][dj][ptr++];
}
}
}
}
} else if (i == 0 && j == 0) {
grid = vector<string>(BORDER, string(BORDER, '0'));
REP (di, 0, 2) {
REP (dj, 0, 3) {
int ptr = 0;
for (int r = di; r < BORDER; r += 2) {
for (int c = dj; c < BORDER; c += 3) {
grid[r][c] = a[di][dj][ptr++];
}
}
}
}
} else if (i == 0 && j == 2) {
grid = vector<string>(BORDER, string(HALFN, '0'));
REP (di, 0, 3) {
REP (dj, 1, 3) {
int ptr = 0;
for (int r = di; r < BORDER; r += 3) {
for (int c = 2 * n - (2 - dj); c >= BORDER; c -= 2) {
grid[r][c - BORDER] = a[di][dj][ptr++];
}
}
}
}
} else if (i == 2 && j == 0) {
grid = vector<string>(HALFN, string(BORDER, '0'));
REP (di, 0, 3) {
REP (dj, 0, 2) {
int ptr = 0;
for (int r = 2 * n - (2 - di); r >= BORDER; r -= 3) {
for (int c = dj; c < BORDER; c += 2) {
grid[r - BORDER][c] = a[di][dj][ptr++];
}
}
}
}
} else {
return string(100, '0');
}
cerr << i << ' ' << j << '\n';
REP (i, 0, SZ(grid)) {
cerr << grid[i] << '\n';
}
vector<vi> vis(SZ(grid), vi(SZ(grid[0]), 0));
int comp = 0, ptr = 1;
REP (r, 0, SZ(grid)) {
REP (c, 0, SZ(grid[0])) {
if (vis[r][c] || grid[r][c] == '0') {
continue;
}
comp++;
queue<ii> bfs;
bfs.push({r, c});
vis[r][c] = ptr++;
while (!bfs.empty()) {
auto [ur, uc] = bfs.front(); bfs.pop();
REP (k, 0, 4) {
int vr = ur + dirr[k], vc = uc + dirc[k];
if (vr < 0 || vr >= SZ(grid) || vc < 0 || vc >= SZ(grid[0])) {
continue;
}
if (grid[vr][vc] == '0' || vis[vr][vc]) {
continue;
}
bfs.push({vr, vc});
vis[vr][vc] = vis[ur][uc];
}
}
}
}
vi border;
// clockwise
if (i == 2 && j == 2) {
// left then down
RREP (c, SZ(grid[0]) - 1, 0) {
border.pb(vis[0][c]);
}
REP (r, 1, SZ(grid)) {
border.pb(vis[r][0]);
}
} else if (i == 0 && j == 0) {
// right then up
REP (c, 0, SZ(grid[0])) {
border.pb(vis[SZ(grid) - 1][c]);
}
RREP (r, SZ(grid) - 2, 0) {
border.pb(vis[r][SZ(grid[0]) - 1]);
}
} else if (i == 0 && j == 2) {
// down then right
REP (r, 0, SZ(grid)) {
border.pb(vis[r][0]);
}
REP (c, 1, SZ(grid[1])) {
border.pb(vis[SZ(grid) - 1][c]);
}
} else if (i == 2 && j == 0) {
// up then left
RREP (r, SZ(grid) - 1, 0) {
border.pb(vis[r][SZ(grid[0]) - 1]);
}
RREP (c, SZ(grid[0]) - 2, 0) {
border.pb(vis[0][c]);
}
}
for (int i : border) {
cerr << i << ' ';
}
cerr << '\n';
vi lst(ptr, -1);
REP (i, 0, SZ(border)) {
lst[border[i]] = i;
}
REP (i, 1, ptr) {
comp -= lst[i] != -1;
}
string res;
REP (k, 0, 9) {
if (comp >> k & 1) {
res += "1";
} else {
res += "0";
}
}
vi stk;
stk.pb(0);
int lvl = 0;
REP (i, 0, SZ(border)) {
int delta;
if (border[i] == 0) {
if (lvl & 1) {
if (lst[border[i - 1]] == i - 1) {
stk.pop_back();
delta = -1;
} else {
delta = 1;
}
} else {
delta = 0;
}
} else {
if (lvl & 1) {
delta = 0;
} else {
if (stk.back() != border[i]) {
stk.pb(border[i]);
delta = 1;
} else {
delta = -1;
}
}
}
if (delta == 0) {
cerr << '_';
res += "10";
} else if (delta == -1) {
cerr << ')';
res += "00";
} else {
cerr << '(';
res += "01";
}
lvl += delta;
}
cerr << '\n';
res.resize(100, '0');
cerr << comp << '\n';
cerr << res << '\n';
return res;
} else {
assert(k == n - 1);
int ans = 0;
int ptr = 1;
vi border[4];
REP (l, 0, 4) {
auto [ai, aj] = corners[l];
REP (b, 0, 9) {
if (a[ai][aj][b] == '1') {
ans += 1 << b;
}
}
vi stk;
stk.pb(0);
int lvl = 0;
REP (i, 0, SIDES[l] + SIDES[(l + 1) % 4] - 1) {
int delta;
if (a[ai][aj][9 + i * 2] == '1') {
delta = 0;
} else if (a[ai][aj][9 + i * 2 + 1] == '0') {
delta = -1;
} else {
delta = 1;
}
lvl += delta;
if (delta == 1 && (lvl & 1)) {
stk.pb(ptr++);
} else if (delta == -1 && (lvl & 1 ^ 1)) {
stk.pop_back();
}
if (lvl & 1) {
border[l].pb(stk.back());
} else {
border[l].pb(0);
}
}
for (int i : border[l]) {
cerr << i << ' ';
}
cerr << '\n';
}
vector<vi> adj(ptr);
REP (l, 0, 4) {
int pl = l == 0 ? 3 : l - 1;
REP (i, 0, SIDES[l]) {
int u = border[l][i],
v = border[pl][SZ(border[pl]) - 1 - i];
if (u == 0 || v == 0) {
continue;
}
adj[u].pb(v);
adj[v].pb(u);
}
}
vector<bool> vis(ptr);
REP (i, 1, ptr) {
if (vis[i]) {
continue;
}
ans++;
vis[i] = 1;
queue<int> qu;
qu.push(i);
while (!qu.empty()) {
int u = qu.front(); qu.pop();
for (int v : adj[u]) {
if (vis[v]) {
continue;
}
vis[v] = 1;
qu.push(v);
}
}
}
string sans(100, '0');
REP (l, 0, 30) {
if (ans >> l & 1) {
sans[l] = '1';
}
}
return sans;
}
}
Compilation message
mars.cpp: In function 'std::string process(std::vector<std::vector<std::__cxx11::basic_string<char> > >, int, int, int, int)':
mars.cpp:333:48: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
333 | } else if (delta == -1 && (lvl & 1 ^ 1)) {
| ~~~~^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
352 KB |
Incorrect |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
352 KB |
Incorrect |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
352 KB |
Incorrect |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
352 KB |
Incorrect |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
352 KB |
Incorrect |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
352 KB |
Incorrect |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
352 KB |
Incorrect |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
352 KB |
Incorrect |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
352 KB |
Incorrect |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
352 KB |
Incorrect |
| 2 |
Halted |
0 ms |
0 KB |
- |
