oj.uz

Submission #557074

# Submission time Handle Problem Language Result Execution time Memory
557074 2022-05-04T17:11:09 Z nutella Land of the Rainbow Gold (APIO17_rainbow) C++17
12 / 100
 299 ms 89664 KB 
#include "rainbow.h"

//#define _GLIBCXX_DEBUG

//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("unroll-loops")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")

#include <bits/stdc++.h>

using namespace std;

//#include <ext/pb_ds/assoc_container.hpp>
//
//using namespace __gnu_pbds;
//
//template<typename T>
//using ordered_set = tree<T, null_type, less < T>, rb_tree_tag, tree_order_statistics_node_update>;

template<typename T>
using normal_queue = priority_queue<T, vector<T>, greater<>>;

mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());

#define trace(x) cout << #x << ": " << (x) << endl;
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define uniq(x) x.resize(unique(all(x)) - begin(x))
#define sz(s) ((int) size(s))
#define pii pair<int, int>
#define mp(x, y) make_pair(x, y)
#define int128 __int128
#define pb push_back
#define popb pop_back
#define eb emplace_back
#define fi first
#define se second
#define itn int

typedef long long ll;
typedef pair<ll, ll> pll;
typedef long double ld;
typedef double db;
typedef unsigned int uint;


template<typename T>
bool ckmn(T &x, T y) {
    if (x > y) {
        x = y;
        return true;
    }
    return false;
}

template<typename T>
bool ckmx(T &x, T y) {
    if (x < y) {
        x = y;
        return true;
    }
    return false;
}

int bit(int x, int b) {
    return (x >> b) & 1;
}

int rand(int l, int r) { return (int) ((ll) rnd() % (r - l + 1)) + l; }


const ll infL = 3e18;
const int infI = 1000000000 + 7;
const int infM = 0x3f3f3f3f; //a little bigger than 1e9
const ll infML = 0x3f3f3f3f3f3f3f3fLL; //4.5e18

template<typename T>
void make_uniq(vector<T> &v) {
    sort(all(v));
    v.resize(unique(all(v)) - begin(v));
}

struct Fenwick {
    vector<vector<ll>> t;
    vector<vector<int>> yy;
    int n;


    Fenwick() = default;

    void init(int a) {
        n = a;
        yy.resize(n);
        t.resize(n);
    }

    void fake_add(int x, int y) {
        for (int i = x; i < n; i |= (i + 1))
            yy[i].pb(y);
    }

    void build() {
        for (int i = 0; i < n; ++i) {
            make_uniq(yy[i]);
            t[i].resize(sz(yy[i]) + 2);
        }
    }

    void add(int x, int y) {
        for (int i = x; i < n; i |= (i + 1))
            for (int j = upper_bound(all(yy[i]), y) - begin(yy[i]) - 1; j < sz(yy[i]); j |= (j + 1))
                ++t[i][j];
    }

    ll get(int x, int y) {
        ll ans = 0;
        for (int i = x; i > -1; i = ((i + 1) & i) - 1)
            for (int j = upper_bound(all(yy[i]), y) - begin(yy[i]) - 1; j > -1; j = ((j + 1) & j) - 1)
                ans += t[i][j];
        return ans;
    }

    ll get(int x1, int y1, int x2, int y2) {
        return get(x2, y2) - get(x1 - 1, y2) - get(x2, y1 - 1) + get(x1 - 1, y1 - 1);
    }

};
const int dx[4] = {0, 0, 1, -1};

const int dy[4] = {1, -1, 0, 0};
int n, m;
vector<pair<int, int>> yy;

Fenwick fx, fy, fv, cv;
int mnx = infI, mny = infI, mxx = -infI, mxy = -infI;

void init(int R, int C, int sr, int sc, int M, char *S) {
    n = R, m = C;
    --sr, --sc;
    fx.init(n), fy.init(n), fv.init(n), cv.init(n);
    yy = {{sr, sc}};
    for (int i = 0; i < M; ++i) {
        if (S[i] == 'N') --sr;
        else if (S[i] == 'S') ++sr;
        else if (S[i] == 'W') --sc;
        else ++sc;
        yy.emplace_back(sr, sc);
    }
    make_uniq(yy);

    auto here = [](int x, int y) -> bool {
        auto it = lower_bound(all(yy), mp(x, y));
        if (it == end(yy)) return false;
        return (*it) == mp(x, y);
    };
    vector<pii > pv, px, py, cvv;
    for (auto [x, y]: yy) {;
        pv.emplace_back(x, y);
        ckmx(mxx, x);
        ckmx(mxy, y);
        ckmn(mnx, x);
        ckmn(mny, y);
        for (int i = 0; i < 4; ++i) {
            int nx = x + dx[i], ny = y + dy[i];
            if (here(nx, ny)) {
                if (nx == x) {
                    px.emplace_back(x, min(ny, y));
                } else {
                    py.emplace_back(min(nx, x), y);
                }
            }
        }
        if (here(x + 1, y) && here(x, y + 1) && here(x + 1, y + 1)) {
            cvv.emplace_back(x, y);
        }
    }

    make_uniq(pv), make_uniq(px), make_uniq(py), make_uniq(cvv);

    for (auto [x, y] : pv)
        fv.fake_add(x, y);
    for (auto [x, y] : px)
        fx.fake_add(x, y);
    for (auto [x, y] : py)
        fy.fake_add(x, y);
    for (auto [x, y] : cvv)
        cv.fake_add(x, y);

    fv.build(), fx.build(), fy.build(), cv.build();

    for (auto [x, y] : pv)
        fv.add(x, y);
    for (auto [x, y] : px)
        fx.add(x, y);
    for (auto [x, y] : py)
        fy.add(x, y);
    for (auto [x, y] : cvv)
        cv.add(x, y);


}

int colour(int ar, int ac, int br, int bc) {
    int x1 = ar, y1 = ac, x2 = br, y2 = bc;
    --x1, --y1;
    --x2, --y2;
    int C = 1 + bool(x1 < mnx && mxx < x2 - 1 && y1 < mny && mxy < y2 - 1);
    ll E = (x2 - x1) * 2 + (y2 - y1) * 2 + fx.get(x1 + 1, y1, x2 - 1, y2 - 1) + fy.get(x1, y1 + 1, x2 - 1, y2 - 1);
    ll V = (x2 - x1 + 1) * 2 + (y2 - y1 - 1) * 2 + fv.get(x1 + 1, y1 + 1, x2 - 1, y2 - 1);
    ll U = cv.get(x1, y1, x2 - 1, y2 - 1);
    ll F = C + 1 + E - V;
    int ans = F - U - 1;
    return ans;
}

Subtask #1
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 312 KB Output is correct
3 Correct 131 ms 4264 KB Output is correct
4 Correct 197 ms 7208 KB Output is correct
5 Correct 206 ms 7496 KB Output is correct
6 Correct 210 ms 8144 KB Output is correct
7 Correct 189 ms 6340 KB Output is correct
8 Correct 57 ms 1932 KB Output is correct
9 Correct 200 ms 7284 KB Output is correct
10 Correct 215 ms 7500 KB Output is correct
11 Correct 211 ms 8132 KB Output is correct
12 Correct 118 ms 6640 KB Output is correct
13 Correct 128 ms 7228 KB Output is correct
14 Correct 132 ms 7492 KB Output is correct
15 Correct 146 ms 8232 KB Output is correct
16 Correct 150 ms 5860 KB Output is correct

Subtask #3
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 206 ms 85632 KB Output is correct
3 Correct 174 ms 78188 KB Output is correct
4 Correct 299 ms 89664 KB Output is correct
5 Correct 161 ms 76960 KB Output is correct
6 Correct 151 ms 70024 KB Output is correct
7 Incorrect 229 ms 74212 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #4
0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 26.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -