oj.uz

Submission #485597

# Submission time Handle Problem Language Result Execution time Memory
485597 2021-11-08T13:13:53 Z cheissmart Bitaro, who Leaps through Time (JOI19_timeleap) C++14
4 / 100
 3000 ms 19216 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++) {
			auto tt = a[i].eval(pos);
			pos = tt.F;
			ans += tt.S;
		}
		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 9 ms 19020 KB Output is correct
2 Correct 11 ms 19064 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 7 ms 19020 KB Output is correct
7 Correct 8 ms 19020 KB Output is correct
8 Correct 8 ms 19076 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 19020 KB Output is correct
13 Correct 10 ms 19020 KB Output is correct
14 Correct 10 ms 19020 KB Output is correct
15 Correct 11 ms 19020 KB Output is correct
16 Correct 11 ms 19020 KB Output is correct
17 Correct 12 ms 19020 KB Output is correct
18 Correct 14 ms 19020 KB Output is correct
19 Correct 11 ms 19020 KB Output is correct
20 Correct 13 ms 19108 KB Output is correct
21 Correct 14 ms 19024 KB Output is correct
22 Correct 12 ms 19020 KB Output is correct
23 Correct 11 ms 19020 KB Output is correct
24 Correct 11 ms 19020 KB Output is correct
25 Correct 11 ms 19020 KB Output is correct
26 Correct 11 ms 19020 KB Output is correct
27 Correct 11 ms 19060 KB Output is correct
28 Correct 11 ms 19112 KB Output is correct
29 Correct 12 ms 19076 KB Output is correct
30 Correct 11 ms 19004 KB Output is correct
31 Correct 11 ms 19100 KB Output is correct
32 Correct 10 ms 19020 KB Output is correct
33 Correct 10 ms 19020 KB Output is correct
34 Correct 11 ms 19000 KB Output is correct
35 Correct 10 ms 19020 KB Output is correct
36 Correct 12 ms 19020 KB Output is correct
37 Correct 13 ms 19148 KB Output is correct
38 Correct 10 ms 19020 KB Output is correct
39 Correct 10 ms 19020 KB Output is correct
40 Correct 12 ms 19020 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 3055 ms 19216 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 66.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 19020 KB Output is correct
2 Correct 11 ms 19064 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 7 ms 19020 KB Output is correct
7 Correct 8 ms 19020 KB Output is correct
8 Correct 8 ms 19076 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 19020 KB Output is correct
13 Correct 10 ms 19020 KB Output is correct
14 Correct 10 ms 19020 KB Output is correct
15 Correct 11 ms 19020 KB Output is correct
16 Correct 11 ms 19020 KB Output is correct
17 Correct 12 ms 19020 KB Output is correct
18 Correct 14 ms 19020 KB Output is correct
19 Correct 11 ms 19020 KB Output is correct
20 Correct 13 ms 19108 KB Output is correct
21 Correct 14 ms 19024 KB Output is correct
22 Correct 12 ms 19020 KB Output is correct
23 Correct 11 ms 19020 KB Output is correct
24 Correct 11 ms 19020 KB Output is correct
25 Correct 11 ms 19020 KB Output is correct
26 Correct 11 ms 19020 KB Output is correct
27 Correct 11 ms 19060 KB Output is correct
28 Correct 11 ms 19112 KB Output is correct
29 Correct 12 ms 19076 KB Output is correct
30 Correct 11 ms 19004 KB Output is correct
31 Correct 11 ms 19100 KB Output is correct
32 Correct 10 ms 19020 KB Output is correct
33 Correct 10 ms 19020 KB Output is correct
34 Correct 11 ms 19000 KB Output is correct
35 Correct 10 ms 19020 KB Output is correct
36 Correct 12 ms 19020 KB Output is correct
37 Correct 13 ms 19148 KB Output is correct
38 Correct 10 ms 19020 KB Output is correct
39 Correct 10 ms 19020 KB Output is correct
40 Correct 12 ms 19020 KB Output is correct
41 Correct 8 ms 19020 KB Output is correct
42 Execution timed out 3055 ms 19216 KB Time limit exceeded
43 Halted 0 ms 0 KB -