/*************************************
* author: marvinthang *
* created: 22.11.2023 16:30:03 *
*************************************/
#include "rainbow.h"
#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define left ___left
#define right ___right
#define TIME (1.0 * clock() / CLOCKS_PER_SEC)
#define MASK(i) (1LL << (i))
#define BIT(x, i) ((x) >> (i) & 1)
#define __builtin_popcount __builtin_popcountll
#define ALL(v) (v).begin(), (v).end()
#define REP(i, n) for (int i = 0, _n = (n); i < _n; ++i)
#define REPD(i, n) for (int i = (n); i-- > 0; )
#define FOR(i, a, b) for (int i = (a), _b = (b); i < _b; ++i)
#define FORD(i, b, a) for (int i = (b), _a = (a); --i >= _a; )
#define FORE(i, a, b) for (int i = (a), _b = (b); i <= _b; ++i)
#define FORDE(i, b, a) for (int i = (b), _a = (a); i >= _a; --i)
#define scan_op(...) istream & operator >> (istream &in, __VA_ARGS__ &u)
#define print_op(...) ostream & operator << (ostream &out, const __VA_ARGS__ &u)
#ifdef LOCAL
#include "debug.h"
#else
#define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
#define DB(...) 23
#define db(...) 23
#define debug(...) 23
#endif
template <class U, class V> scan_op(pair <U, V>) { return in >> u.first >> u.second; }
template <class T> scan_op(vector <T>) { for (size_t i = 0; i < u.size(); ++i) in >> u[i]; return in; }
template <class U, class V> print_op(pair <U, V>) { return out << '(' << u.first << ", " << u.second << ')'; }
template <size_t i, class T> ostream & print_tuple_utils(ostream &out, const T &tup) { if constexpr(i == tuple_size<T>::value) return out << ")"; else return print_tuple_utils<i + 1, T>(out << (i ? ", " : "(") << get<i>(tup), tup); }
template <class ...U> print_op(tuple<U...>) { return print_tuple_utils<0, tuple<U...>>(out, u); }
template <class Con, class = decltype(begin(declval<Con>()))> typename enable_if <!is_same<Con, string>::value, ostream&>::type operator << (ostream &out, const Con &con) { out << '{'; for (__typeof(con.begin()) it = con.begin(); it != con.end(); ++it) out << (it == con.begin() ? "" : ", ") << *it; return out << '}'; }
struct Node {
int cnt;
Node *left, *right;
Node(int v = 0): cnt(v), left(nullptr), right(nullptr) {}
Node(Node *l, Node *r) {
left = l, right = r;
cnt = l->cnt + r->cnt;
}
};
Node* build(int l, int r) {
if (r - l == 1) return new Node(0);
int m = l + r >> 1;
return new Node(build(l, m), build(m, r));
}
Node* upgrade(Node *cur, int l, int r, int p, int v) {
if (r - l == 1) return new Node(cur->cnt + v);
int m = l + r >> 1;
if (p < m) return new Node(upgrade(cur->left, l, m, p, v), cur->right);
return new Node(cur->left, upgrade(cur->right, m, r, p, v));
};
int get_sum(Node *cur, int l, int r, int u, int v) {
if (l >= v || r <= u) return 0;
if (u <= l && r <= v) return cur->cnt;
int m = l + r >> 1;
return get_sum(cur->left, l, m, u, v) + get_sum(cur->right, m, r, u, v);
}
vector <Node *> drow, dcol, dsquare;
int R, C;
vector <vector <bool>> board;
vector <vector <int>> rows, cols;
void init(int r, int c, int sr, int sc, int M, char *S) {
R = r; C = c; --sr; --sc;
rows.resize(R);
cols.resize(C);
board.assign(R, vector<bool>(C));
drow.push_back(build(0, C));
dcol.push_back(build(0, R));
dsquare.push_back(build(0, C));
board[sr][sc] = true;
rows[sr].push_back(sc);
cols[sc].push_back(sr);
REP(i, M) {
if (S[i] == 'N') --sr;
else if (S[i] == 'S') ++sr;
else if (S[i] == 'W') --sc;
else ++sc;
board[sr][sc] = true;
rows[sr].push_back(sc);
cols[sc].push_back(sr);
}
vector <bool> exist(C);
REP(r, R) {
if (r) drow.push_back(drow.back());
sort(ALL(rows[r]));
rows[r].erase(unique(ALL(rows[r])), rows[r].end());
for (int c: rows[r]) if (exist[c]) drow.back() = upgrade(drow.back(), 0, C, c, 1);
if (r) for (int c: rows[r - 1]) exist[c] = false;
for (int c: rows[r]) exist[c] = true;
}
exist.assign(R, false);
REP(c, C) {
if (c) dcol.push_back(dcol.back());
sort(ALL(cols[c]));
cols[c].erase(unique(ALL(cols[c])), cols[c].end());
for (int r: cols[c]) if (exist[r]) dcol.back() = upgrade(dcol.back(), 0, R, r, 1);
if (c) for (int r: cols[c - 1]) exist[r] = false;
for (int r: cols[c]) exist[r] = true;
}
}
bool exist(int x, int y) {
return binary_search(ALL(rows[x]), y);
}
int colour(int ar, int ac, int br, int bc) {
--ar; --ac; --br; --bc;
bool ex = false;
int res = 0;
for (int r: {ar, br}) res += upper_bound(ALL(rows[r]), bc) - lower_bound(ALL(rows[r]), ac);
for (int c: {ac, bc}) res += upper_bound(ALL(cols[c]), br) - lower_bound(ALL(cols[c]), ar);
bool border = res;
res += 1 - exist(ar, ac) - exist(ar, bc) - exist(br, ac) - exist(br, bc);
res += get_sum(drow[br], 0, C, ac, bc + 1) - get_sum(drow[ar], 0, C, ac, bc + 1);
res += get_sum(dcol[bc], 0, R, ar, br + 1) - get_sum(dcol[ac], 0, R, ar, br + 1);
FORE(x, ar, br) FORE(y, ac, bc) if (board[x][y]) {
ex = true;
--res;
if (x == ar) {
if (y > ac && board[x][y - 1]) --res;
}
if (x == br) {
if (y > ac && board[x][y - 1]) --res;
}
if (y == ac) {
if (x > ar && board[x - 1][y]) --res;
}
if (y == bc) {
if (x > ar && board[x - 1][y]) --res;
}
if (x > ar && y > ac && board[x - 1][y - 1] && !board[x - 1][y] && !board[x][y - 1]) ++res;
if (x > ar && y < bc && board[x - 1][y + 1] && !board[x - 1][y] && !board[x][y + 1]) ++res;
if (x > ar && y > ac && board[x - 1][y - 1] && board[x - 1][y] && board[x][y - 1]) --res;
}
return res + (ex && !border);
}
Compilation message
rainbow.cpp: In function 'Node* build(int, int)':
rainbow.cpp:56:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
56 | int m = l + r >> 1;
| ~~^~~
rainbow.cpp: In function 'Node* upgrade(Node*, int, int, int, int)':
rainbow.cpp:61:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
61 | int m = l + r >> 1;
| ~~^~~
rainbow.cpp: In function 'int get_sum(Node*, int, int, int, int)':
rainbow.cpp:68:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
68 | int m = l + r >> 1;
| ~~^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
348 KB |
Output is correct |
| 2 |
Correct |
3 ms |
604 KB |
Output is correct |
| 3 |
Correct |
2 ms |
348 KB |
Output is correct |
| 4 |
Correct |
3 ms |
348 KB |
Output is correct |
| 5 |
Correct |
5 ms |
860 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
1 ms |
348 KB |
Output is correct |
| 11 |
Correct |
3 ms |
604 KB |
Output is correct |
| 12 |
Correct |
5 ms |
604 KB |
Output is correct |
| 13 |
Correct |
4 ms |
600 KB |
Output is correct |
| 14 |
Correct |
5 ms |
860 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
0 ms |
352 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
352 KB |
Output is correct |
| 3 |
Execution timed out |
3033 ms |
38352 KB |
Time limit exceeded |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Runtime error |
495 ms |
1048576 KB |
Execution killed with signal 9 |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
348 KB |
Output is correct |
| 2 |
Correct |
3 ms |
604 KB |
Output is correct |
| 3 |
Correct |
2 ms |
348 KB |
Output is correct |
| 4 |
Correct |
3 ms |
348 KB |
Output is correct |
| 5 |
Correct |
5 ms |
860 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
1 ms |
348 KB |
Output is correct |
| 11 |
Correct |
3 ms |
604 KB |
Output is correct |
| 12 |
Correct |
5 ms |
604 KB |
Output is correct |
| 13 |
Correct |
4 ms |
600 KB |
Output is correct |
| 14 |
Correct |
5 ms |
860 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
0 ms |
352 KB |
Output is correct |
| 18 |
Execution timed out |
3025 ms |
20620 KB |
Time limit exceeded |
| 19 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
348 KB |
Output is correct |
| 2 |
Correct |
3 ms |
604 KB |
Output is correct |
| 3 |
Correct |
2 ms |
348 KB |
Output is correct |
| 4 |
Correct |
3 ms |
348 KB |
Output is correct |
| 5 |
Correct |
5 ms |
860 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
1 ms |
348 KB |
Output is correct |
| 11 |
Correct |
3 ms |
604 KB |
Output is correct |
| 12 |
Correct |
5 ms |
604 KB |
Output is correct |
| 13 |
Correct |
4 ms |
600 KB |
Output is correct |
| 14 |
Correct |
5 ms |
860 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
0 ms |
352 KB |
Output is correct |
| 18 |
Execution timed out |
3025 ms |
20620 KB |
Time limit exceeded |
| 19 |
Halted |
0 ms |
0 KB |
- |
