oj.uz

Submission #115253

# Submission time Handle Problem Language Result Execution time Memory
115253 2019-06-06T12:07:39 Z AngusRitossa Bitaro, who Leaps through Time (JOI19_timeleap) C++14
34 / 100
 3000 ms 118436 KB 
#include <bits/stdc++.h>
using namespace std;
#ifdef DEBUG
	#define D(x...) printf(x)
#else
	#define D(x...)
#endif
typedef long long ll;
struct zigzag
{
	bool isline;
	int height; // if line
	ll addtoall;
	int a, b; // if not line
	vector<pair<pair<int, int>, pair<bool, ll> > > add; // first pair range of elements, 2nd bool as to whether to add current loc, then add amount
};
zigzag merge(zigzag a, zigzag &b)
{
	if (a.isline)
	{
		for (auto f : b.add)
		{
			if (f.first.first <= a.height && a.height <= f.first.second)
			{
				a.addtoall += f.second.second;
				if (f.second.first) a.addtoall += a.height;
			}
		}
		if (b.isline)
		{
			a.addtoall += b.addtoall;
			a.height = b.height;
		}
		else
		{
			if (b.a > a.height) a.height = b.a;
			else if (b.b < a.height) a.height = b.b;
		}
		return a;
	}
	else
	{
		if (b.isline)
		{
			a.isline = 1;
			for (auto f : b.add)
			{
				if (f.first.first <= a.a && a.a <= f.first.second)
				{
					ll am = f.second.second;
					if (f.second.first) am += a.a;
					a.add.push_back({ { -1.1e9, a.a }, { 0, am }});
				}
				int bot = max(f.first.first, a.a+1);
				int top = min(f.first.second, a.b-1);
				if (bot <= top) 
				{
					a.add.push_back({ { bot, top }, f.second });
				}
				if (f.first.first <= a.b && a.b <= f.first.second)
				{
					ll am = f.second.second;
					if (f.second.first) am += a.b;
					a.add.push_back({ { a.b, 1.1e9 }, { 0, am }});
				}
			}
			a.addtoall += b.addtoall;
			a.height = b.height;
			return a;
		}
		else if (b.a >= a.b) // second one is completely above
		{
			// just make a into a line and return
			a.isline = 1;
			a.height = b.a;
			return a;
		}
		else if (b.b <= a.a) // second one is completely below
		{
			// make into a line, moving all groups down
			a.isline = 1;
			a.height = b.b;
			a.add.clear();
			a.add.push_back({ { a.a+1, 1.1e9 }, { 1, -a.height }});
			a.add.push_back({ { -1.1e9, a.a }, { 0, a.a-a.height }});
			return a;
		}
		else // overlap
		{
			a.add.clear();
			a.b = min(a.b, b.b);
			a.a = max(a.a, b.a);
			assert(a.a <= a.b);
			a.add.push_back({ { a.b, 1.1e9 }, { 1, -a.b } });
			if (a.a == a.b)
			{
				a.isline = 1;
				a.height = a.a;
			}
			return a;
		}
	}
}
zigzag merge2(zigzag a, zigzag b)
{
	if (a.isline)
	{
		for (auto f : b.add)
		{
			if (f.first.first <= a.height && a.height <= f.first.second)
			{
				a.addtoall += f.second.second;
				if (f.second.first) a.addtoall += a.height;
			}
		}
		if (b.isline)
		{
			a.addtoall += b.addtoall;
			a.height = b.height;
		}
		else
		{
			if (b.a > a.height) a.height = b.a;
			else if (b.b < a.height) a.height = b.b;
		}
		return a;
	}
	else
	{
		if (b.isline)
		{
			a.isline = 1;
			for (auto f : b.add)
			{
				if (f.first.first <= a.a && a.a <= f.first.second)
				{
					ll am = f.second.second;
					if (f.second.first) am += a.a;
					a.add.push_back({ { -1.1e9, a.a }, { 0, am }});
				}
				int bot = max(f.first.first, a.a+1);
				int top = min(f.first.second, a.b-1);
				if (bot <= top) 
				{
					a.add.push_back({ { bot, top }, f.second });
				}
				if (f.first.first <= a.b && a.b <= f.first.second)
				{
					ll am = f.second.second;
					if (f.second.first) am += a.b;
					a.add.push_back({ { a.b, 1.1e9 }, { 0, am }});
				}
			}
			a.addtoall += b.addtoall;
			a.height = b.height;
			return a;
		}
		else if (b.a >= a.b) // second one is completely above
		{
			// just make a into a line and return
			a.isline = 1;
			a.height = b.a;
			return a;
		}
		else if (b.b <= a.a) // second one is completely below
		{
			// make into a line, moving all groups down
			a.isline = 1;
			a.height = b.b;
			a.add.clear();
			a.add.push_back({ { a.a+1, 1.1e9 }, { 1, -a.height }});
			a.add.push_back({ { -1.1e9, a.a }, { 0, a.a-a.height }});
			return a;
		}
		else // overlap
		{
			a.add.clear();
			a.b = min(a.b, b.b);
			a.a = max(a.a, b.a);
			assert(a.a <= a.b);
			a.add.push_back({ { a.b, 1.1e9 }, { 1, -a.b } });
			if (a.a == a.b)
			{
				a.isline = 1;
				a.height = a.a;
			}
			return a;
		}
	}
}
zigzag rangetree[300010*4];
void update(int node, pair<int, int> val, int curr = 1, int cstart = 0, int cend = 300010)
{
	if (cstart == cend)
	{
		rangetree[curr].a = val.first, rangetree[curr].b = val.second;
		rangetree[curr].add = { { { val.second, 1.1e9 }, { 1, -val.second } } };
		if (rangetree[curr].a == rangetree[curr].b)
		{
			rangetree[curr].isline = 1;
			rangetree[curr].height = rangetree[curr].a;
		}
		else rangetree[curr].isline = 0;
		return;
	}
	int mid = (cstart+cend)/2;
	if (node <= mid) update(node, val, 2*curr, cstart, mid);
	else update(node, val, 2*curr+1, mid+1, cend);
	rangetree[curr] = merge(rangetree[2*curr], rangetree[2*curr+1]);
};
zigzag query(int s, int e, int curr = 1, int cstart = 0, int cend = 300010)
{
	if (s <= cstart && cend <= e) return rangetree[curr];
	int mid = (cstart+cend)/2;
	if (e <= mid) return query(s, e, 2*curr, cstart, mid);
	else if (s > mid) return query(s, e, 2*curr+1, mid+1, cend);
	else return merge2(query(s, e, 2*curr, cstart, mid), query(s, e, 2*curr+1, mid+1, cend));
}
ll A[300010], B[300010], C[300010], D[300010], T[300010], L[300010], R[300010], ANS[300010], l[300010], r[300010];
int n, q;
void dothing(bool reverse)
{
	for (int i = 1; i < n; i++) 
	{
		l[i] = L[i], r[i] = R[i];
		if (reverse) l[i] = L[n-i], r[i] = R[n-i];
		l[i]-=i;
		r[i]-=i+1;
		D("%lld %lld\n", l[i], r[i]);
		update(i, { l[i], r[i] });
		assert(l[i] <= r[i]);
	}
	for (int i = 0; i < q; i++)
	{
		ll t, a, b, c, d;
		t = T[i];
		if (t == 1)
		{
			ll a = A[i], x = B[i], y = C[i];
			if (reverse) a = n-a;
			l[a] = x-a, r[a] = y-a-1;
			assert(l[a] <= r[a]);
			update(a, { l[a], r[a] });
			continue;
		}
		a = A[i], b = B[i], c = C[i], d = D[i];
		if (a > c && !reverse) continue;
		if (reverse)
		{
			if (a <= c) continue;
			a = n-a+1, c = n-c+1;
		} 
		b-=a, d-=c;
		if (a == c)
		{
			ANS[i] = max(0ll, b-d);
			continue;
		}
		zigzag q = query(a, c-1);
		ll ans = q.addtoall;
		for (auto f : q.add)
		{
			if (f.first.first <= b && b <= f.first.second)
			{
				ans += f.second.second;
				if (f.second.first) ans += b;
			}
		}
		int endpoint = q.height;
		if (!q.isline)
		{
			if (b < q.a) endpoint = q.a;
			else if (b > q.b) endpoint = q.b;
			else endpoint = b;
		}
		ans += max(0ll, endpoint-d);
		ANS[i] = ans;
	}
}
int main()
{
	scanf("%d%d", &n, &q);
	for (int i = 1; i < n; i++) scanf("%lld%lld", &L[i], &R[i]);
	for (int i = 0; i < q; i++)
	{
		scanf("%lld", &T[i]);
		if (T[i] == 1) scanf("%lld%lld%lld", &A[i], &B[i], &C[i]);
		else scanf("%lld%lld%lld%lld", &A[i], &B[i], &C[i], &D[i]);
	}
	dothing(0);
	dothing(1);
	for (int i = 0; i < q; i++)
	{
		if (T[i] == 2) printf("%lld\n", ANS[i]);
	}
}

Compilation message

timeleap.cpp: In function 'int main()':
timeleap.cpp:282:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &q);
  ~~~~~^~~~~~~~~~~~~~~~
timeleap.cpp:283:35: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for (int i = 1; i < n; i++) scanf("%lld%lld", &L[i], &R[i]);
                              ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
timeleap.cpp:286:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld", &T[i]);
   ~~~~~^~~~~~~~~~~~~~~
timeleap.cpp:287:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   if (T[i] == 1) scanf("%lld%lld%lld", &A[i], &B[i], &C[i]);
                  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
timeleap.cpp:288:13: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   else scanf("%lld%lld%lld%lld", &A[i], &B[i], &C[i], &D[i]);
        ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 56824 KB Output is correct
2 Correct 49 ms 56824 KB Output is correct
3 Correct 49 ms 56824 KB Output is correct
4 Correct 49 ms 56824 KB Output is correct
5 Correct 47 ms 56704 KB Output is correct
6 Correct 48 ms 56700 KB Output is correct
7 Correct 49 ms 56952 KB Output is correct
8 Correct 48 ms 56696 KB Output is correct
9 Correct 51 ms 56824 KB Output is correct
10 Correct 51 ms 56824 KB Output is correct
11 Correct 56 ms 57080 KB Output is correct
12 Correct 55 ms 56952 KB Output is correct
13 Correct 53 ms 56952 KB Output is correct
14 Correct 55 ms 56952 KB Output is correct
15 Correct 54 ms 56952 KB Output is correct
16 Correct 53 ms 56952 KB Output is correct
17 Correct 53 ms 56952 KB Output is correct
18 Correct 53 ms 56952 KB Output is correct
19 Correct 53 ms 57080 KB Output is correct
20 Correct 53 ms 56952 KB Output is correct
21 Correct 54 ms 56952 KB Output is correct
22 Correct 53 ms 56952 KB Output is correct
23 Correct 53 ms 56952 KB Output is correct
24 Correct 53 ms 56952 KB Output is correct
25 Correct 52 ms 56952 KB Output is correct
26 Correct 54 ms 57080 KB Output is correct
27 Correct 53 ms 56952 KB Output is correct
28 Correct 52 ms 56952 KB Output is correct
29 Correct 53 ms 56952 KB Output is correct
30 Correct 52 ms 56884 KB Output is correct
31 Correct 53 ms 57208 KB Output is correct
32 Correct 52 ms 56952 KB Output is correct
33 Correct 55 ms 56952 KB Output is correct
34 Correct 53 ms 56952 KB Output is correct
35 Correct 53 ms 57080 KB Output is correct
36 Correct 52 ms 56952 KB Output is correct
37 Correct 53 ms 56952 KB Output is correct
38 Correct 53 ms 57080 KB Output is correct
39 Correct 53 ms 56952 KB Output is correct
40 Correct 52 ms 56968 KB Output is correct
41 Correct 50 ms 56696 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1831 ms 106256 KB Output is correct
2 Correct 1793 ms 104440 KB Output is correct
3 Correct 1823 ms 104788 KB Output is correct
4 Correct 1784 ms 103716 KB Output is correct
5 Correct 1822 ms 105860 KB Output is correct
6 Correct 1796 ms 105104 KB Output is correct
7 Correct 1799 ms 106468 KB Output is correct
8 Correct 1831 ms 107872 KB Output is correct
9 Correct 1720 ms 103704 KB Output is correct
10 Correct 1846 ms 105868 KB Output is correct
11 Correct 1917 ms 105720 KB Output is correct
12 Correct 1947 ms 107896 KB Output is correct
13 Correct 1966 ms 108252 KB Output is correct
14 Correct 49 ms 56704 KB Output is correct

Subtask #3
0 / 66.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 56824 KB Output is correct
2 Correct 49 ms 56824 KB Output is correct
3 Correct 49 ms 56824 KB Output is correct
4 Correct 49 ms 56824 KB Output is correct
5 Correct 47 ms 56704 KB Output is correct
6 Correct 48 ms 56700 KB Output is correct
7 Correct 49 ms 56952 KB Output is correct
8 Correct 48 ms 56696 KB Output is correct
9 Correct 51 ms 56824 KB Output is correct
10 Correct 51 ms 56824 KB Output is correct
11 Correct 56 ms 57080 KB Output is correct
12 Correct 55 ms 56952 KB Output is correct
13 Correct 53 ms 56952 KB Output is correct
14 Correct 55 ms 56952 KB Output is correct
15 Correct 54 ms 56952 KB Output is correct
16 Correct 53 ms 56952 KB Output is correct
17 Correct 53 ms 56952 KB Output is correct
18 Correct 53 ms 56952 KB Output is correct
19 Correct 53 ms 57080 KB Output is correct
20 Correct 53 ms 56952 KB Output is correct
21 Correct 54 ms 56952 KB Output is correct
22 Correct 53 ms 56952 KB Output is correct
23 Correct 53 ms 56952 KB Output is correct
24 Correct 53 ms 56952 KB Output is correct
25 Correct 52 ms 56952 KB Output is correct
26 Correct 54 ms 57080 KB Output is correct
27 Correct 53 ms 56952 KB Output is correct
28 Correct 52 ms 56952 KB Output is correct
29 Correct 53 ms 56952 KB Output is correct
30 Correct 52 ms 56884 KB Output is correct
31 Correct 53 ms 57208 KB Output is correct
32 Correct 52 ms 56952 KB Output is correct
33 Correct 55 ms 56952 KB Output is correct
34 Correct 53 ms 56952 KB Output is correct
35 Correct 53 ms 57080 KB Output is correct
36 Correct 52 ms 56952 KB Output is correct
37 Correct 53 ms 56952 KB Output is correct
38 Correct 53 ms 57080 KB Output is correct
39 Correct 53 ms 56952 KB Output is correct
40 Correct 52 ms 56968 KB Output is correct
41 Correct 50 ms 56696 KB Output is correct
42 Correct 1831 ms 106256 KB Output is correct
43 Correct 1793 ms 104440 KB Output is correct
44 Correct 1823 ms 104788 KB Output is correct
45 Correct 1784 ms 103716 KB Output is correct
46 Correct 1822 ms 105860 KB Output is correct
47 Correct 1796 ms 105104 KB Output is correct
48 Correct 1799 ms 106468 KB Output is correct
49 Correct 1831 ms 107872 KB Output is correct
50 Correct 1720 ms 103704 KB Output is correct
51 Correct 1846 ms 105868 KB Output is correct
52 Correct 1917 ms 105720 KB Output is correct
53 Correct 1947 ms 107896 KB Output is correct
54 Correct 1966 ms 108252 KB Output is correct
55 Correct 49 ms 56704 KB Output is correct
56 Correct 2827 ms 103116 KB Output is correct
57 Correct 2689 ms 114936 KB Output is correct
58 Execution timed out 3023 ms 118436 KB Time limit exceeded
59 Halted 0 ms 0 KB -