oj.uz

Submission #485590

# Submission time Handle Problem Language Result Execution time Memory
485590 2021-11-08T12:33:46 Z cheissmart Bitaro, who Leaps through Time (JOI19_timeleap) C++14
0 / 100
 1100 ms 79672 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 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);
				}
			}
			assert(res.l <= res.r);
			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:60:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   60 |     auto [pos, cost] = rhs.eval(lhs.y);
      |          ^
timeleap.cpp: In function 'int main()':
timeleap.cpp:143:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
  143 |     auto [pos, cost] = u.eval(b);
      |          ^
timeleap.cpp:152:10: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
  152 |     auto [pos, cost] = u.eval(b);
      |          ^

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 75420 KB Output is correct
2 Correct 30 ms 75392 KB Output is correct
3 Correct 37 ms 75372 KB Output is correct
4 Correct 35 ms 75412 KB Output is correct
5 Correct 30 ms 75416 KB Output is correct
6 Correct 29 ms 75376 KB Output is correct
7 Correct 30 ms 75340 KB Output is correct
8 Correct 34 ms 75352 KB Output is correct
9 Correct 29 ms 75336 KB Output is correct
10 Correct 29 ms 75340 KB Output is correct
11 Correct 35 ms 75360 KB Output is correct
12 Correct 34 ms 75464 KB Output is correct
13 Correct 32 ms 75440 KB Output is correct
14 Correct 31 ms 75384 KB Output is correct
15 Correct 32 ms 75464 KB Output is correct
16 Correct 33 ms 75400 KB Output is correct
17 Correct 32 ms 75348 KB Output is correct
18 Correct 32 ms 75468 KB Output is correct
19 Correct 32 ms 75572 KB Output is correct
20 Correct 33 ms 75512 KB Output is correct
21 Incorrect 40 ms 75468 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #2
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1063 ms 79608 KB Output is correct
2 Correct 984 ms 79664 KB Output is correct
3 Correct 993 ms 79604 KB Output is correct
4 Correct 957 ms 79608 KB Output is correct
5 Correct 1100 ms 79672 KB Output is correct
6 Correct 1037 ms 79584 KB Output is correct
7 Incorrect 1025 ms 79668 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #3
0 / 66.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 75420 KB Output is correct
2 Correct 30 ms 75392 KB Output is correct
3 Correct 37 ms 75372 KB Output is correct
4 Correct 35 ms 75412 KB Output is correct
5 Correct 30 ms 75416 KB Output is correct
6 Correct 29 ms 75376 KB Output is correct
7 Correct 30 ms 75340 KB Output is correct
8 Correct 34 ms 75352 KB Output is correct
9 Correct 29 ms 75336 KB Output is correct
10 Correct 29 ms 75340 KB Output is correct
11 Correct 35 ms 75360 KB Output is correct
12 Correct 34 ms 75464 KB Output is correct
13 Correct 32 ms 75440 KB Output is correct
14 Correct 31 ms 75384 KB Output is correct
15 Correct 32 ms 75464 KB Output is correct
16 Correct 33 ms 75400 KB Output is correct
17 Correct 32 ms 75348 KB Output is correct
18 Correct 32 ms 75468 KB Output is correct
19 Correct 32 ms 75572 KB Output is correct
20 Correct 33 ms 75512 KB Output is correct
21 Incorrect 40 ms 75468 KB Output isn't correct
22 Halted 0 ms 0 KB -