oj.uz

Submission #876912

# Submission time Handle Problem Language Result Execution time Memory
876912 2023-11-22T13:36:38 Z marvinthang Land of the Rainbow Gold (APIO17_rainbow) C++17
50 / 100
 427 ms 1048576 KB 
/*************************************
*    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 << '}'; }

static char buf[1000 << 20];
void* operator new(size_t s) {
    static size_t i = sizeof buf;
    assert(s < i);
    return (void*)&buf[i -= s];
}
void operator delete(void*) {}


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 *p, Node *q, int l, int r, int u, int v) {
    if (l >= v || r <= u) return 0;
    if (u <= l && r <= v) return q->cnt - p->cnt;
    int m = l + r >> 1;
    return get_sum(p->left, q->left, l, m, u, v) + get_sum(p->right, q->right, m, r, u, v);
}
 
vector <Node *> drow, dcol, dsquare, dcell;
 
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));
    dcell.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());
            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);
            int add = 0;
            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 'Node* build(int, int)':
rainbow.cpp:65:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   65 |     int m = l + r >> 1;
      |             ~~^~~
rainbow.cpp: In function 'Node* upgrade(Node*, int, int, int, int)':
rainbow.cpp:70:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   70 |     int m = l + r >> 1;
      |             ~~^~~
rainbow.cpp: In function 'int get_sum(Node*, Node*, int, int, int, int)':
rainbow.cpp:77:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   77 |     int m = l + r >> 1;
      |             ~~^~~
rainbow.cpp: In function 'void init(int, int, int, int, int, char*)':
rainbow.cpp:125:17: warning: unused variable 'add' [-Wunused-variable]
  125 |             int add = 0;
      |                 ^~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 2 ms 604 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 2 ms 856 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 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 2 ms 600 KB Output is correct
12 Correct 2 ms 860 KB Output is correct
13 Correct 2 ms 860 KB Output is correct
14 Correct 2 ms 1116 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 315 ms 68692 KB Output is correct
4 Correct 407 ms 89424 KB Output is correct
5 Correct 420 ms 93348 KB Output is correct
6 Correct 265 ms 105684 KB Output is correct
7 Correct 298 ms 87124 KB Output is correct
8 Correct 204 ms 42092 KB Output is correct
9 Correct 383 ms 89168 KB Output is correct
10 Correct 354 ms 93236 KB Output is correct
11 Correct 293 ms 105472 KB Output is correct
12 Correct 109 ms 85072 KB Output is correct
13 Correct 108 ms 89168 KB Output is correct
14 Correct 113 ms 93248 KB Output is correct
15 Correct 119 ms 105660 KB Output is correct
16 Correct 275 ms 74828 KB Output is correct

Subtask #3
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Runtime error 427 ms 1048576 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #4
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 2 ms 604 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 2 ms 856 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 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 2 ms 600 KB Output is correct
12 Correct 2 ms 860 KB Output is correct
13 Correct 2 ms 860 KB Output is correct
14 Correct 2 ms 1116 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 223 ms 31828 KB Output is correct
19 Correct 75 ms 2480 KB Output is correct
20 Correct 69 ms 1340 KB Output is correct
21 Correct 66 ms 1360 KB Output is correct
22 Correct 81 ms 1800 KB Output is correct
23 Correct 74 ms 2316 KB Output is correct
24 Correct 87 ms 1624 KB Output is correct
25 Correct 75 ms 1872 KB Output is correct
26 Correct 68 ms 1872 KB Output is correct
27 Correct 123 ms 43944 KB Output is correct
28 Correct 140 ms 27684 KB Output is correct
29 Correct 159 ms 50356 KB Output is correct
30 Correct 171 ms 56288 KB Output is correct
31 Correct 2 ms 348 KB Output is correct
32 Correct 264 ms 33872 KB Output is correct

Subtask #5
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 2 ms 604 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 2 ms 856 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 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 2 ms 600 KB Output is correct
12 Correct 2 ms 860 KB Output is correct
13 Correct 2 ms 860 KB Output is correct
14 Correct 2 ms 1116 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 223 ms 31828 KB Output is correct
19 Correct 75 ms 2480 KB Output is correct
20 Correct 69 ms 1340 KB Output is correct
21 Correct 66 ms 1360 KB Output is correct
22 Correct 81 ms 1800 KB Output is correct
23 Correct 74 ms 2316 KB Output is correct
24 Correct 87 ms 1624 KB Output is correct
25 Correct 75 ms 1872 KB Output is correct
26 Correct 68 ms 1872 KB Output is correct
27 Correct 123 ms 43944 KB Output is correct
28 Correct 140 ms 27684 KB Output is correct
29 Correct 159 ms 50356 KB Output is correct
30 Correct 171 ms 56288 KB Output is correct
31 Correct 2 ms 348 KB Output is correct
32 Correct 264 ms 33872 KB Output is correct
33 Runtime error 427 ms 1048576 KB Execution killed with signal 9
34 Halted 0 ms 0 KB -