oj.uz

Submission #485587

# Submission time Handle Problem Language Result Execution time Memory
485587 2021-11-08T12:16:53 Z cheissmart Bitaro, who Leaps through Time (JOI19_timeleap) C++14
0 / 100
 564 ms 79724 KB 
#include <bits/stdc++.h>
#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 DS {
	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;
		}
		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;
		}
	} 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);
	}
} 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;
				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;
				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 'DS::node operator+(DS::node, DS::node)':
timeleap.cpp:59:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   59 |     auto [pos, cost] = rhs.eval(lhs.y);
      |          ^
timeleap.cpp: In function 'int main()':
timeleap.cpp:142:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
  142 |     auto [pos, cost] = u.eval(b);
      |          ^
timeleap.cpp:151:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
  151 |     auto [pos, cost] = u.eval(b);
      |          ^

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 75340 KB Output is correct
2 Correct 30 ms 75340 KB Output is correct
3 Correct 31 ms 75452 KB Output is correct
4 Correct 31 ms 75372 KB Output is correct
5 Correct 31 ms 75456 KB Output is correct
6 Correct 32 ms 75356 KB Output is correct
7 Correct 32 ms 75408 KB Output is correct
8 Correct 31 ms 75332 KB Output is correct
9 Correct 30 ms 75456 KB Output is correct
10 Correct 33 ms 75444 KB Output is correct
11 Correct 34 ms 75468 KB Output is correct
12 Correct 32 ms 75388 KB Output is correct
13 Correct 32 ms 75368 KB Output is correct
14 Correct 38 ms 75364 KB Output is correct
15 Correct 41 ms 75432 KB Output is correct
16 Correct 32 ms 75448 KB Output is correct
17 Correct 41 ms 75428 KB Output is correct
18 Correct 32 ms 75360 KB Output is correct
19 Correct 32 ms 75448 KB Output is correct
20 Correct 30 ms 75332 KB Output is correct
21 Incorrect 32 ms 75532 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #2
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 555 ms 79672 KB Output is correct
2 Correct 536 ms 79680 KB Output is correct
3 Correct 530 ms 79676 KB Output is correct
4 Correct 508 ms 79724 KB Output is correct
5 Correct 559 ms 79668 KB Output is correct
6 Correct 531 ms 79556 KB Output is correct
7 Incorrect 564 ms 79672 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #3
0 / 66.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 75340 KB Output is correct
2 Correct 30 ms 75340 KB Output is correct
3 Correct 31 ms 75452 KB Output is correct
4 Correct 31 ms 75372 KB Output is correct
5 Correct 31 ms 75456 KB Output is correct
6 Correct 32 ms 75356 KB Output is correct
7 Correct 32 ms 75408 KB Output is correct
8 Correct 31 ms 75332 KB Output is correct
9 Correct 30 ms 75456 KB Output is correct
10 Correct 33 ms 75444 KB Output is correct
11 Correct 34 ms 75468 KB Output is correct
12 Correct 32 ms 75388 KB Output is correct
13 Correct 32 ms 75368 KB Output is correct
14 Correct 38 ms 75364 KB Output is correct
15 Correct 41 ms 75432 KB Output is correct
16 Correct 32 ms 75448 KB Output is correct
17 Correct 41 ms 75428 KB Output is correct
18 Correct 32 ms 75360 KB Output is correct
19 Correct 32 ms 75448 KB Output is correct
20 Correct 30 ms 75332 KB Output is correct
21 Incorrect 32 ms 75532 KB Output isn't correct
22 Halted 0 ms 0 KB -