oj.uz

Submission #115264

# Submission time Handle Problem Language Result Execution time Memory
115264 2019-06-06T12:25:07 Z AngusRitossa Bitaro, who Leaps through Time (JOI19_timeleap) C++14
100 / 100
 2958 ms 95060 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, int> > > 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));
}
int A[300010], B[300010], C[300010], D[300010], T[300010], L[300010], R[300010], l[300010], r[300010];
ll ANS[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("%d%d", &L[i], &R[i]);
	for (int i = 0; i < q; i++)
	{
		scanf("%d", &T[i]);
		if (T[i] == 1) scanf("%d%d%d", &A[i], &B[i], &C[i]);
		else scanf("%d%d%d%d", &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:283:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &q);
  ~~~~~^~~~~~~~~~~~~~~~
timeleap.cpp:284:35: 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("%d%d", &L[i], &R[i]);
                              ~~~~~^~~~~~~~~~~~~~~~~~~~~~
timeleap.cpp:287:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &T[i]);
   ~~~~~^~~~~~~~~~~~~
timeleap.cpp:288:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   if (T[i] == 1) scanf("%d%d%d", &A[i], &B[i], &C[i]);
                  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
timeleap.cpp:289:13: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   else scanf("%d%d%d%d", &A[i], &B[i], &C[i], &D[i]);
        ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 47 ms 56700 KB Output is correct
2 Correct 47 ms 56700 KB Output is correct
3 Correct 47 ms 56700 KB Output is correct
4 Correct 46 ms 56696 KB Output is correct
5 Correct 46 ms 56696 KB Output is correct
6 Correct 47 ms 56824 KB Output is correct
7 Correct 47 ms 56696 KB Output is correct
8 Correct 49 ms 56836 KB Output is correct
9 Correct 50 ms 56664 KB Output is correct
10 Correct 49 ms 56824 KB Output is correct
11 Correct 71 ms 56828 KB Output is correct
12 Correct 53 ms 56824 KB Output is correct
13 Correct 53 ms 56952 KB Output is correct
14 Correct 51 ms 56824 KB Output is correct
15 Correct 52 ms 56824 KB Output is correct
16 Correct 50 ms 56956 KB Output is correct
17 Correct 50 ms 56836 KB Output is correct
18 Correct 49 ms 56876 KB Output is correct
19 Correct 50 ms 56824 KB Output is correct
20 Correct 49 ms 56824 KB Output is correct
21 Correct 49 ms 56824 KB Output is correct
22 Correct 49 ms 56824 KB Output is correct
23 Correct 52 ms 56824 KB Output is correct
24 Correct 50 ms 56796 KB Output is correct
25 Correct 50 ms 56828 KB Output is correct
26 Correct 50 ms 56824 KB Output is correct
27 Correct 50 ms 56824 KB Output is correct
28 Correct 50 ms 56856 KB Output is correct
29 Correct 51 ms 56824 KB Output is correct
30 Correct 51 ms 56824 KB Output is correct
31 Correct 51 ms 56824 KB Output is correct
32 Correct 51 ms 56832 KB Output is correct
33 Correct 51 ms 56824 KB Output is correct
34 Correct 50 ms 56824 KB Output is correct
35 Correct 50 ms 56952 KB Output is correct
36 Correct 52 ms 57052 KB Output is correct
37 Correct 53 ms 56824 KB Output is correct
38 Correct 52 ms 56824 KB Output is correct
39 Correct 53 ms 56784 KB Output is correct
40 Correct 51 ms 56868 KB Output is correct
41 Correct 47 ms 56764 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1809 ms 92972 KB Output is correct
2 Correct 1796 ms 91492 KB Output is correct
3 Correct 1798 ms 91748 KB Output is correct
4 Correct 1734 ms 91176 KB Output is correct
5 Correct 1776 ms 92712 KB Output is correct
6 Correct 1879 ms 92324 KB Output is correct
7 Correct 1774 ms 93244 KB Output is correct
8 Correct 1814 ms 94480 KB Output is correct
9 Correct 1665 ms 91228 KB Output is correct
10 Correct 1799 ms 93212 KB Output is correct
11 Correct 1781 ms 92872 KB Output is correct
12 Correct 1898 ms 94624 KB Output is correct
13 Correct 1948 ms 95060 KB Output is correct
14 Correct 50 ms 56756 KB Output is correct

Subtask #3
66.0 / 66.0

# Verdict Execution time Memory Grader output
1 Correct 47 ms 56700 KB Output is correct
2 Correct 47 ms 56700 KB Output is correct
3 Correct 47 ms 56700 KB Output is correct
4 Correct 46 ms 56696 KB Output is correct
5 Correct 46 ms 56696 KB Output is correct
6 Correct 47 ms 56824 KB Output is correct
7 Correct 47 ms 56696 KB Output is correct
8 Correct 49 ms 56836 KB Output is correct
9 Correct 50 ms 56664 KB Output is correct
10 Correct 49 ms 56824 KB Output is correct
11 Correct 71 ms 56828 KB Output is correct
12 Correct 53 ms 56824 KB Output is correct
13 Correct 53 ms 56952 KB Output is correct
14 Correct 51 ms 56824 KB Output is correct
15 Correct 52 ms 56824 KB Output is correct
16 Correct 50 ms 56956 KB Output is correct
17 Correct 50 ms 56836 KB Output is correct
18 Correct 49 ms 56876 KB Output is correct
19 Correct 50 ms 56824 KB Output is correct
20 Correct 49 ms 56824 KB Output is correct
21 Correct 49 ms 56824 KB Output is correct
22 Correct 49 ms 56824 KB Output is correct
23 Correct 52 ms 56824 KB Output is correct
24 Correct 50 ms 56796 KB Output is correct
25 Correct 50 ms 56828 KB Output is correct
26 Correct 50 ms 56824 KB Output is correct
27 Correct 50 ms 56824 KB Output is correct
28 Correct 50 ms 56856 KB Output is correct
29 Correct 51 ms 56824 KB Output is correct
30 Correct 51 ms 56824 KB Output is correct
31 Correct 51 ms 56824 KB Output is correct
32 Correct 51 ms 56832 KB Output is correct
33 Correct 51 ms 56824 KB Output is correct
34 Correct 50 ms 56824 KB Output is correct
35 Correct 50 ms 56952 KB Output is correct
36 Correct 52 ms 57052 KB Output is correct
37 Correct 53 ms 56824 KB Output is correct
38 Correct 52 ms 56824 KB Output is correct
39 Correct 53 ms 56784 KB Output is correct
40 Correct 51 ms 56868 KB Output is correct
41 Correct 47 ms 56764 KB Output is correct
42 Correct 1809 ms 92972 KB Output is correct
43 Correct 1796 ms 91492 KB Output is correct
44 Correct 1798 ms 91748 KB Output is correct
45 Correct 1734 ms 91176 KB Output is correct
46 Correct 1776 ms 92712 KB Output is correct
47 Correct 1879 ms 92324 KB Output is correct
48 Correct 1774 ms 93244 KB Output is correct
49 Correct 1814 ms 94480 KB Output is correct
50 Correct 1665 ms 91228 KB Output is correct
51 Correct 1799 ms 93212 KB Output is correct
52 Correct 1781 ms 92872 KB Output is correct
53 Correct 1898 ms 94624 KB Output is correct
54 Correct 1948 ms 95060 KB Output is correct
55 Correct 50 ms 56756 KB Output is correct
56 Correct 2722 ms 90708 KB Output is correct
57 Correct 2590 ms 89004 KB Output is correct
58 Correct 2809 ms 91384 KB Output is correct
59 Correct 2807 ms 91444 KB Output is correct
60 Correct 2751 ms 89556 KB Output is correct
61 Correct 2958 ms 92340 KB Output is correct
62 Correct 2872 ms 92184 KB Output is correct
63 Correct 2859 ms 92036 KB Output is correct
64 Correct 2836 ms 93640 KB Output is correct
65 Correct 2726 ms 92124 KB Output is correct
66 Correct 2632 ms 92024 KB Output is correct
67 Correct 2659 ms 93164 KB Output is correct
68 Correct 2701 ms 90912 KB Output is correct
69 Correct 2819 ms 93912 KB Output is correct
70 Correct 2733 ms 90740 KB Output is correct
71 Correct 2644 ms 89956 KB Output is correct
72 Correct 2776 ms 91180 KB Output is correct
73 Correct 2847 ms 92696 KB Output is correct
74 Correct 2918 ms 92808 KB Output is correct
75 Correct 2912 ms 93448 KB Output is correct
76 Correct 2810 ms 93276 KB Output is correct
77 Correct 48 ms 56700 KB Output is correct