oj.uz

Submission #115263

# Submission time Handle Problem Language Result Execution time Memory
115263 2019-06-06T12:24:39 Z AngusRitossa Bitaro, who Leaps through Time (JOI19_timeleap) C++14
100 / 100
 2956 ms 108320 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 50 ms 56824 KB Output is correct
2 Correct 51 ms 56696 KB Output is correct
3 Correct 48 ms 56700 KB Output is correct
4 Correct 49 ms 56696 KB Output is correct
5 Correct 51 ms 56824 KB Output is correct
6 Correct 51 ms 56704 KB Output is correct
7 Correct 50 ms 56696 KB Output is correct
8 Correct 51 ms 56824 KB Output is correct
9 Correct 50 ms 56696 KB Output is correct
10 Correct 52 ms 56696 KB Output is correct
11 Correct 54 ms 56824 KB Output is correct
12 Correct 54 ms 56824 KB Output is correct
13 Correct 60 ms 56952 KB Output is correct
14 Correct 63 ms 56824 KB Output is correct
15 Correct 54 ms 56824 KB Output is correct
16 Correct 55 ms 56824 KB Output is correct
17 Correct 54 ms 56952 KB Output is correct
18 Correct 55 ms 56796 KB Output is correct
19 Correct 90 ms 56904 KB Output is correct
20 Correct 55 ms 56832 KB Output is correct
21 Correct 56 ms 56796 KB Output is correct
22 Correct 53 ms 56796 KB Output is correct
23 Correct 52 ms 56828 KB Output is correct
24 Correct 52 ms 56824 KB Output is correct
25 Correct 54 ms 56824 KB Output is correct
26 Correct 54 ms 56824 KB Output is correct
27 Correct 52 ms 56824 KB Output is correct
28 Correct 69 ms 56904 KB Output is correct
29 Correct 58 ms 56824 KB Output is correct
30 Correct 53 ms 56824 KB Output is correct
31 Correct 52 ms 56952 KB Output is correct
32 Correct 52 ms 56824 KB Output is correct
33 Correct 52 ms 56824 KB Output is correct
34 Correct 52 ms 56952 KB Output is correct
35 Correct 52 ms 56824 KB Output is correct
36 Correct 55 ms 56824 KB Output is correct
37 Correct 56 ms 56888 KB Output is correct
38 Correct 53 ms 56824 KB Output is correct
39 Correct 56 ms 56952 KB Output is correct
40 Correct 52 ms 56824 KB Output is correct
41 Correct 47 ms 56696 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1785 ms 93060 KB Output is correct
2 Correct 1749 ms 91512 KB Output is correct
3 Correct 1821 ms 91740 KB Output is correct
4 Correct 1816 ms 91020 KB Output is correct
5 Correct 1821 ms 92852 KB Output is correct
6 Correct 1791 ms 92400 KB Output is correct
7 Correct 1763 ms 93324 KB Output is correct
8 Correct 1829 ms 94584 KB Output is correct
9 Correct 1736 ms 91368 KB Output is correct
10 Correct 1865 ms 93056 KB Output is correct
11 Correct 1821 ms 92844 KB Output is correct
12 Correct 1918 ms 94696 KB Output is correct
13 Correct 1897 ms 95056 KB Output is correct
14 Correct 49 ms 56668 KB Output is correct

Subtask #3
66.0 / 66.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 56824 KB Output is correct
2 Correct 51 ms 56696 KB Output is correct
3 Correct 48 ms 56700 KB Output is correct
4 Correct 49 ms 56696 KB Output is correct
5 Correct 51 ms 56824 KB Output is correct
6 Correct 51 ms 56704 KB Output is correct
7 Correct 50 ms 56696 KB Output is correct
8 Correct 51 ms 56824 KB Output is correct
9 Correct 50 ms 56696 KB Output is correct
10 Correct 52 ms 56696 KB Output is correct
11 Correct 54 ms 56824 KB Output is correct
12 Correct 54 ms 56824 KB Output is correct
13 Correct 60 ms 56952 KB Output is correct
14 Correct 63 ms 56824 KB Output is correct
15 Correct 54 ms 56824 KB Output is correct
16 Correct 55 ms 56824 KB Output is correct
17 Correct 54 ms 56952 KB Output is correct
18 Correct 55 ms 56796 KB Output is correct
19 Correct 90 ms 56904 KB Output is correct
20 Correct 55 ms 56832 KB Output is correct
21 Correct 56 ms 56796 KB Output is correct
22 Correct 53 ms 56796 KB Output is correct
23 Correct 52 ms 56828 KB Output is correct
24 Correct 52 ms 56824 KB Output is correct
25 Correct 54 ms 56824 KB Output is correct
26 Correct 54 ms 56824 KB Output is correct
27 Correct 52 ms 56824 KB Output is correct
28 Correct 69 ms 56904 KB Output is correct
29 Correct 58 ms 56824 KB Output is correct
30 Correct 53 ms 56824 KB Output is correct
31 Correct 52 ms 56952 KB Output is correct
32 Correct 52 ms 56824 KB Output is correct
33 Correct 52 ms 56824 KB Output is correct
34 Correct 52 ms 56952 KB Output is correct
35 Correct 52 ms 56824 KB Output is correct
36 Correct 55 ms 56824 KB Output is correct
37 Correct 56 ms 56888 KB Output is correct
38 Correct 53 ms 56824 KB Output is correct
39 Correct 56 ms 56952 KB Output is correct
40 Correct 52 ms 56824 KB Output is correct
41 Correct 47 ms 56696 KB Output is correct
42 Correct 1785 ms 93060 KB Output is correct
43 Correct 1749 ms 91512 KB Output is correct
44 Correct 1821 ms 91740 KB Output is correct
45 Correct 1816 ms 91020 KB Output is correct
46 Correct 1821 ms 92852 KB Output is correct
47 Correct 1791 ms 92400 KB Output is correct
48 Correct 1763 ms 93324 KB Output is correct
49 Correct 1829 ms 94584 KB Output is correct
50 Correct 1736 ms 91368 KB Output is correct
51 Correct 1865 ms 93056 KB Output is correct
52 Correct 1821 ms 92844 KB Output is correct
53 Correct 1918 ms 94696 KB Output is correct
54 Correct 1897 ms 95056 KB Output is correct
55 Correct 49 ms 56668 KB Output is correct
56 Correct 2737 ms 90728 KB Output is correct
57 Correct 2642 ms 88992 KB Output is correct
58 Correct 2787 ms 91292 KB Output is correct
59 Correct 2936 ms 91564 KB Output is correct
60 Correct 2803 ms 89556 KB Output is correct
61 Correct 2886 ms 92232 KB Output is correct
62 Correct 2778 ms 92132 KB Output is correct
63 Correct 2765 ms 92160 KB Output is correct
64 Correct 2943 ms 92328 KB Output is correct
65 Correct 2717 ms 90920 KB Output is correct
66 Correct 2596 ms 90956 KB Output is correct
67 Correct 2746 ms 92052 KB Output is correct
68 Correct 2619 ms 90176 KB Output is correct
69 Correct 2819 ms 93128 KB Output is correct
70 Correct 2741 ms 90012 KB Output is correct
71 Correct 2842 ms 89260 KB Output is correct
72 Correct 2897 ms 90244 KB Output is correct
73 Correct 2937 ms 93648 KB Output is correct
74 Correct 2848 ms 93816 KB Output is correct
75 Correct 2956 ms 107768 KB Output is correct
76 Correct 2829 ms 108320 KB Output is correct
77 Correct 48 ms 56668 KB Output is correct