Submission #779783

#	Time	Username	Problem	Language	Result	Execution time	Memory
779783		chanhchuong123	trapezoid (balkan11_trapezoid)	C++14	22 / 100	92 ms	15080 KiB

trapezoid

#include <bits/stdc++.h>
using namespace std;
#define task ""
#define fi first
#define se second
#define MASK(i) (1LL << (i))
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define BIT(mask, i) ((mask) >> (i) & 1)
#define FOR(i, a, b) for (int i = (a), _b = (b); i <= _b; ++i)
#define FORD(i, a, b) for (int i = (b), _a = (a); i >= _a; --i)

template <typename T1, typename T2> bool minimize(T1 &a, T2 b) {
	if (a > b) {a = b; return true;} return false;
}
template <typename T1, typename T2> bool maximize(T1 &a, T2 b) {
	if (a < b) {a = b; return true;} return false;
}

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

const int MAX = 100100;
int n;
vector<int> tmp[2];
#define ID(x, tmp) (upper_bound(all(tmp), x) - tmp.begin())

struct range {
    int a, b, c, d;

    range(int _a = 0, int _b = 0, int _c = 0, int _d = 0) {
        a = _a; b = _b; c = _c; d = _d;
    }

    bool operator< (const range &other) const {
        return a < other.a;
    }
};
range arr[MAX];

struct node {
    int len, cnt, pos;

    node(int _len = 0, int _cnt = 0, int _pos = 0) {
        len = _len; cnt = _cnt; pos = _pos;
    }
};
vector<node> add[MAX << 1];
pair<int, int> bit[MAX << 1];

pair<int, int> combine(const pair<int, int> &u, const pair<int, int> &v) {
    if (u.fi < v.fi) return v;
    if (u.fi > v.fi) return u;
    return make_pair(u.fi, (u.se + v.se) % 30013);
}

void update(int id, const pair<int, int> &value) {
    for (; id <= n * 2; id += id & -id)
        bit[id] = combine(bit[id], value);
}

pair<int, int> get(int id) {
    pair<int, int> res(0, 1);
    for (; id > 0; id -= id & -id)
        res = combine(res, bit[id]);
    ++res.fi; return res;
}

int main() {
	ios_base::sync_with_stdio(false); cin.tie(nullptr);

	if (fopen(task".inp", "r")) {
		freopen(task".inp", "r", stdin);
		freopen(task".out", "w", stdout);
	}

    cin >> n;
    for (int i = 1; i <= n; ++i) {
        int a, b, c, d; cin >> a >> b >> c >> d;
        arr[i] = range(a, b, c, d);
        tmp[0].push_back(a);
        tmp[0].push_back(b);
        tmp[1].push_back(c);
        tmp[1].push_back(d);
    }
    for (int i = 0; i < 2; ++i) {
        sort(all(tmp[i]));
        tmp[i].resize(unique(all(tmp[i])) - tmp[i].begin());
    }
    for (int i = 1; i <= n; ++i) {
        arr[i].a = ID(arr[i].a, tmp[0]);
        arr[i].b = ID(arr[i].b, tmp[0]);
        arr[i].c = ID(arr[i].c, tmp[1]);
        arr[i].d = ID(arr[i].d, tmp[1]);
    }
    int pos = 1;
    pair<int, int> ans(0, 1);
    for (int i = 1; i <= n; ++i) {
        while (pos <= arr[i].a) {
            for (node &x: add[pos]) {
                int len = x.len, cnt = x.cnt, pos = x.pos;
                update(pos, make_pair(len, cnt));
            }
            ++pos;
        }
        pair<int, int> res = get(arr[i].c); ans = combine(ans, res);
        add[arr[i].b].push_back(node(res.fi, res.se, arr[i].d));
    }
    cout << ans.fi << ' ' << ans.se;

	return 0;
}

Compilation message (stderr)

trapezoid.cpp: In function 'int main()':
trapezoid.cpp:73:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   73 |   freopen(task".inp", "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
trapezoid.cpp:74:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   74 |   freopen(task".out", "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 22 / 100