oj.uz

Submission #485596

# Submission time Handle Problem Language Result Execution time Memory
485596 2021-11-08T13:12:12 Z cheissmart Bitaro, who Leaps through Time (JOI19_timeleap) C++14
4 / 100
 3000 ms 19160 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("trapv")
#define IO_OP std::ios::sync_with_stdio(0); std::cin.tie(0);
#define F first
#define S second
#define V vector
#define PB push_back
#define MP make_pair
#define EB emplace_back
#define ALL(v) (v).begin(), (v).end()
 
using namespace std;
 
typedef long long ll;
typedef pair<int, int> pi;
typedef V<int> vi;
 
string _reset = "\u001b[0m", _yellow = "\u001b[33m", _bold = "\u001b[1m";
void DBG() { cerr << "]" << _reset << endl; }
template<class H, class...T> void DBG(H h, T ...t) {
	cerr << to_string(h);
	if(sizeof ...(t)) cerr << ", ";
	DBG(t...);
}
#ifdef CHEISSMART
#define debug(...) cerr << _yellow << _bold << "Line(" << __LINE__ << ") -> [" << #__VA_ARGS__ << "]: [", DBG(__VA_ARGS__)
#else
#define debug(...)
#endif
 
const int INF = 1e9 + 7, N = 3e5 + 7;
 
int n, q;

struct node {
	int l, r, x, y;
	ll cost;
	bool type; //0: only l, r
	node(int _l = 0, int _r = 0) {
		l = _l, r = _r;
		x = y = 0, type = 0, cost = 0;
		assert(l <= r);
	}
	pair<int, ll> eval(int pos) {
		ll ans = 0;
		int pre = pos;
		pos = max(pos, l), pos = min(pos, r);
		ans += max(0, pre - pos);
		if(type) {
			ans += cost;
			pre = pos, pos = x;
			ans += max(0, pre - pos);
			pos = y;
		}
		return {pos, ans};
	}
	friend node operator + (node lhs, node rhs) {
		node res;
		if(lhs.type) { 
			res.l = lhs.l, res.r = lhs.r, res.x = lhs.x, res.type = 1;
			auto [pos, cost] = rhs.eval(lhs.y);
			res.cost = lhs.cost + cost;
			res.y = pos;
		} else {
			if(max(lhs.l, rhs.l) < min(lhs.r, rhs.r)) {
				res = rhs;
				res.l = max(lhs.l, rhs.l);
				res.r = min(lhs.r, rhs.r);
			} else {
				res.l = lhs.l, res.r = lhs.r, res.type = 1;
				if(rhs.l >= lhs.r) {
					res.x = rhs.l;
				} else {
					res.x = rhs.r;
				}
				tie(res.y, res.cost) = rhs.eval(res.x);
			}
		}
		return res;
	}
};

struct DS {
	node t[N * 4];
	void upd(int pos, node x, int v = 1, int tl = 0, int tr = n) {
		if(tr - tl == 1) {
			assert(pos == tl);
			t[v] = x;
			return;
		}
		int tm = (tl + tr) / 2;
		if(pos < tm)
			upd(pos, x, v * 2, tl, tm);
		else
			upd(pos, x, v * 2 + 1, tm, tr);
		t[v] = t[v * 2] + t[v * 2 + 1];
	}
	void upd(int i, int l, int r) {
		l -= i, r -= i;
		upd(i, node(l, r));
	}
	node qry(int l, int r, int v = 1, int tl = 0, int tr = n) {
		if(l <= tl && tr <= r)
			return t[v];
		int tm = (tl + tr) / 2;
		if(r <= tm)
			return qry(l, r, v * 2, tl, tm);
		else if(l >= tm)
			return qry(l, r, v * 2 + 1, tm, tr);
		else
			return qry(l, r, v * 2, tl, tm) + qry(l, r, v * 2 + 1, tm, tr);
	}
};


struct DS2 {
	node a[N];
	void upd(int pos, int l, int r) {
		l -= pos, r -= pos;
		a[pos] = node(l, r);
	}
	// node qry(int l, int r) {
	// 	node u = a[l];
	// 	for(int i = l + 1; i < r; i++)
	// 		u = u + a[i];
	// 	return u;
	// }
	ll qqry(int _a, int b, int c, int d) {
		ll ans = 0;
		int pos = b;
		for(int i = _a; i < c; i++) {
			int pre = pos;
			pos = max(pos, a[i].l);
			pos = min(pos, a[i].r);
			ans += max(pre - pos, 0);
		}
		ans += max(pos - d, 0);
		return ans;
	}
};

DS2 t1, t2;
 
signed main()
{
	IO_OP;
 
	cin >> n >> q;
	for(int i = 0; i < n - 1; i++) {
		int l, r;
		cin >> l >> r;
		r--;
		t1.upd(i, l, r);
		t2.upd(n - i - 2, l, r);
	}
 
	while(q--) {
		int op;
		cin >> op;
		if(op == 1) {
			int p, l, r;
			cin >> p >> l >> r;
			r--, p--;
			t1.upd(p, l, r);
			t2.upd(n - p - 2, l, r);
		} else {
			int a, b, c, d;
			cin >> a >> b >> c >> d;
			a--, c--;
			if(a == c) {
				cout << max(b - d, 0) << '\n';
			} else if(a < c) {
				b -= a, d -= c;
				cout << t1.qqry(a, b, c, d) << '\n';
				// auto u = t1.qry(a, c);
				// auto [pos, cost] = u.eval(b);
				// cost += max(pos - d, 0);
				// cout << cost << '\n';
			} else { // a > c
				a--;
				a = n - a - 2, c = n - c - 2;
				c++;
				b -= a, d -= c;
				cout << t2.qqry(a, b, c, d) << '\n';
				// auto u = t2.qry(a, c);
				// auto [pos, cost] = u.eval(b);
				// cost += max(pos - d, 0);
				// cout << cost << '\n';
			}
		}
	}
 
}

Compilation message

timeleap.cpp: In function 'node operator+(node, node)':
timeleap.cpp:61:9: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   61 |    auto [pos, cost] = rhs.eval(lhs.y);
      |         ^

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 19020 KB Output is correct
2 Correct 9 ms 19020 KB Output is correct
3 Correct 8 ms 19020 KB Output is correct
4 Correct 8 ms 19020 KB Output is correct
5 Correct 8 ms 19020 KB Output is correct
6 Correct 9 ms 19020 KB Output is correct
7 Correct 8 ms 19020 KB Output is correct
8 Correct 8 ms 19048 KB Output is correct
9 Correct 8 ms 19020 KB Output is correct
10 Correct 8 ms 19020 KB Output is correct
11 Correct 10 ms 19020 KB Output is correct
12 Correct 10 ms 19092 KB Output is correct
13 Correct 13 ms 19020 KB Output is correct
14 Correct 13 ms 19044 KB Output is correct
15 Correct 11 ms 19020 KB Output is correct
16 Correct 14 ms 19104 KB Output is correct
17 Correct 11 ms 19020 KB Output is correct
18 Correct 10 ms 19020 KB Output is correct
19 Correct 10 ms 19020 KB Output is correct
20 Correct 10 ms 19020 KB Output is correct
21 Correct 10 ms 19020 KB Output is correct
22 Correct 10 ms 19148 KB Output is correct
23 Correct 11 ms 19148 KB Output is correct
24 Correct 11 ms 19072 KB Output is correct
25 Correct 11 ms 19124 KB Output is correct
26 Correct 12 ms 19148 KB Output is correct
27 Correct 14 ms 19148 KB Output is correct
28 Correct 14 ms 19052 KB Output is correct
29 Correct 10 ms 19148 KB Output is correct
30 Correct 10 ms 19060 KB Output is correct
31 Correct 10 ms 19072 KB Output is correct
32 Correct 10 ms 19148 KB Output is correct
33 Correct 10 ms 19148 KB Output is correct
34 Correct 10 ms 19136 KB Output is correct
35 Correct 12 ms 19160 KB Output is correct
36 Correct 10 ms 19148 KB Output is correct
37 Correct 10 ms 19112 KB Output is correct
38 Correct 10 ms 19148 KB Output is correct
39 Correct 10 ms 19148 KB Output is correct
40 Correct 11 ms 19148 KB Output is correct
41 Correct 8 ms 19020 KB Output is correct

Subtask #2
0 / 30.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3074 ms 19120 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 66.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 19020 KB Output is correct
2 Correct 9 ms 19020 KB Output is correct
3 Correct 8 ms 19020 KB Output is correct
4 Correct 8 ms 19020 KB Output is correct
5 Correct 8 ms 19020 KB Output is correct
6 Correct 9 ms 19020 KB Output is correct
7 Correct 8 ms 19020 KB Output is correct
8 Correct 8 ms 19048 KB Output is correct
9 Correct 8 ms 19020 KB Output is correct
10 Correct 8 ms 19020 KB Output is correct
11 Correct 10 ms 19020 KB Output is correct
12 Correct 10 ms 19092 KB Output is correct
13 Correct 13 ms 19020 KB Output is correct
14 Correct 13 ms 19044 KB Output is correct
15 Correct 11 ms 19020 KB Output is correct
16 Correct 14 ms 19104 KB Output is correct
17 Correct 11 ms 19020 KB Output is correct
18 Correct 10 ms 19020 KB Output is correct
19 Correct 10 ms 19020 KB Output is correct
20 Correct 10 ms 19020 KB Output is correct
21 Correct 10 ms 19020 KB Output is correct
22 Correct 10 ms 19148 KB Output is correct
23 Correct 11 ms 19148 KB Output is correct
24 Correct 11 ms 19072 KB Output is correct
25 Correct 11 ms 19124 KB Output is correct
26 Correct 12 ms 19148 KB Output is correct
27 Correct 14 ms 19148 KB Output is correct
28 Correct 14 ms 19052 KB Output is correct
29 Correct 10 ms 19148 KB Output is correct
30 Correct 10 ms 19060 KB Output is correct
31 Correct 10 ms 19072 KB Output is correct
32 Correct 10 ms 19148 KB Output is correct
33 Correct 10 ms 19148 KB Output is correct
34 Correct 10 ms 19136 KB Output is correct
35 Correct 12 ms 19160 KB Output is correct
36 Correct 10 ms 19148 KB Output is correct
37 Correct 10 ms 19112 KB Output is correct
38 Correct 10 ms 19148 KB Output is correct
39 Correct 10 ms 19148 KB Output is correct
40 Correct 11 ms 19148 KB Output is correct
41 Correct 8 ms 19020 KB Output is correct
42 Execution timed out 3074 ms 19120 KB Time limit exceeded
43 Halted 0 ms 0 KB -