/*************************************
* 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, left, right;
Node(int v = 0, int l = -1, int r = -1): cnt(v), left(l), right(r) {}
};
vector <Node> nodes;
int newNode(int v) {
nodes.push_back(Node());
return (int) nodes.size() - 1;
}
int newNode(int l, int r) {
nodes.push_back(Node(nodes[l].cnt + nodes[r].cnt, l, r));
return (int) nodes.size() - 1;
}
int build(int l, int r) {
if (r - l == 1) return newNode(0);
int m = l + r >> 1;
return newNode(build(l, m), build(m, r));
}
int upgrade(int cur, int l, int r, int p, int v) {
if (r - l == 1) return newNode(nodes[cur].cnt + v);
int m = l + r >> 1;
if (p < m) return newNode(upgrade(nodes[cur].left, l, m, p, v), nodes[cur].right);
return newNode(nodes[cur].left, upgrade(nodes[cur].right, m, r, p, v));
};
int get_sum(int p, int q, int l, int r, int u, int v) {
if (l >= v || r <= u) return 0;
if (u <= l && r <= v) return nodes[q].cnt - nodes[p].cnt;
int m = l + r >> 1;
return get_sum(nodes[p].left, nodes[q].left, l, m, u, v) + get_sum(nodes[p].right, nodes[q].right, m, r, u, v);
}
vector <int> drow, dcol, dsquare, dcell;
int R, C;
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);
drow.push_back(build(0, C));
dcol.push_back(build(0, R));
dsquare.push_back(drow[0]);
dcell.push_back(drow[0]);
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;
rows[sr].push_back(sc);
cols[sc].push_back(sr);
}
vector <bool> exist(C);
REP(r, R) {
if (r) {
drow.push_back(drow.back());
dsquare.push_back(dsquare.back());
}
dcell.push_back(dcell.back());
sort(ALL(rows[r]));
rows[r].erase(unique(ALL(rows[r])), rows[r].end());
int last = -2;
REP(i, rows[r].size()) {
int c = rows[r][i];
dcell.back() = upgrade(dcell.back(), 0, C, c, 1);
if (exist[c]) {
drow.back() = upgrade(drow.back(), 0, C, c, 1);
if (last + 1 == c && exist[c - 1]) dsquare.back() = upgrade(dsquare.back(), 0, C, c, -1);
} else {
if (c && last + 1 != c && exist[c - 1]) dsquare.back() = upgrade(dsquare.back(), 0, C, c, +1);
if (c + 1 < C && exist[c + 1] && (i + 1 == (int) rows[r].size() || rows[r][i + 1] != c + 1))
dsquare.back() = upgrade(dsquare.back(), 0, C, c + 1, +1);
}
last = c;
}
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;
int cnt_cell = get_sum(dcell[ar], dcell[br + 1], 0, C, ac, bc + 1);
if (!cnt_cell) return 1;
int cnt_border = 0;
int res = 1 - exist(ar, ac) - exist(ar, bc) - exist(br, ac) - exist(br, bc);
res += get_sum(drow[ar], drow[br], 0, C, ac, bc + 1);
res += get_sum(dcol[ac], dcol[bc], 0, R, ar, br + 1);
for (int c: {ac, bc}) {
cnt_border += upper_bound(ALL(cols[c]), br) - lower_bound(ALL(cols[c]), ar);
res -= get_sum(drow[ar], drow[br], 0, C, c, c + 1);
}
for (int r: {ar, br}) {
cnt_border += upper_bound(ALL(rows[r]), bc) - lower_bound(ALL(rows[r]), ac);
res -= get_sum(dcol[ac], dcol[bc], 0, R, r, r + 1);
}
res += get_sum(dsquare[ar], dsquare[br], 0, C, ac + 1, bc + 1);
return cnt_border - cnt_cell + res + !cnt_border;
}
Compilation message
rainbow.cpp: In function 'int build(int, int)':
rainbow.cpp:63:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
63 | int m = l + r >> 1;
| ~~^~~
rainbow.cpp: In function 'int upgrade(int, int, int, int, int)':
rainbow.cpp:68:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
68 | int m = l + r >> 1;
| ~~^~~
rainbow.cpp: In function 'int get_sum(int, int, int, int, int, int)':
rainbow.cpp:75:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
75 | int m = l + r >> 1;
| ~~^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
600 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
