oj.uz

Submission #115260

# Submission time Handle Problem Language Result Execution time Memory
115260 2019-06-06T12:21:17 Z AngusRitossa Bitaro, who Leaps through Time (JOI19_timeleap) C++14
34 / 100
 3000 ms 95352 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;
		}
		query(a, c-1);
		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:284:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &q);
  ~~~~~^~~~~~~~~~~~~~~~
timeleap.cpp:285:35: 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:288:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &T[i]);
   ~~~~~^~~~~~~~~~~~~
timeleap.cpp:289:23: 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:290:13: 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 48 ms 56696 KB Output is correct
3 Correct 49 ms 56696 KB Output is correct
4 Correct 50 ms 56704 KB Output is correct
5 Correct 51 ms 56824 KB Output is correct
6 Correct 51 ms 56696 KB Output is correct
7 Correct 51 ms 56696 KB Output is correct
8 Correct 49 ms 56928 KB Output is correct
9 Correct 47 ms 56696 KB Output is correct
10 Correct 49 ms 56696 KB Output is correct
11 Correct 52 ms 56824 KB Output is correct
12 Correct 53 ms 56952 KB Output is correct
13 Correct 52 ms 56824 KB Output is correct
14 Correct 52 ms 56904 KB Output is correct
15 Correct 53 ms 56924 KB Output is correct
16 Correct 54 ms 56952 KB Output is correct
17 Correct 54 ms 56964 KB Output is correct
18 Correct 54 ms 56952 KB Output is correct
19 Correct 52 ms 56800 KB Output is correct
20 Correct 53 ms 56952 KB Output is correct
21 Correct 53 ms 56956 KB Output is correct
22 Correct 52 ms 56824 KB Output is correct
23 Correct 55 ms 56924 KB Output is correct
24 Correct 52 ms 56824 KB Output is correct
25 Correct 53 ms 56844 KB Output is correct
26 Correct 52 ms 56824 KB Output is correct
27 Correct 52 ms 56952 KB Output is correct
28 Correct 53 ms 56952 KB Output is correct
29 Correct 57 ms 56952 KB Output is correct
30 Correct 52 ms 56932 KB Output is correct
31 Correct 55 ms 56888 KB Output is correct
32 Correct 53 ms 56824 KB Output is correct
33 Correct 53 ms 56824 KB Output is correct
34 Correct 52 ms 56952 KB Output is correct
35 Correct 52 ms 56828 KB Output is correct
36 Correct 53 ms 56828 KB Output is correct
37 Correct 53 ms 56952 KB Output is correct
38 Correct 52 ms 56824 KB Output is correct
39 Correct 52 ms 56952 KB Output is correct
40 Correct 54 ms 56952 KB Output is correct
41 Correct 49 ms 56824 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2183 ms 93388 KB Output is correct
2 Correct 2105 ms 91976 KB Output is correct
3 Correct 2187 ms 92276 KB Output is correct
4 Correct 2160 ms 91416 KB Output is correct
5 Correct 2151 ms 93100 KB Output is correct
6 Correct 2123 ms 92868 KB Output is correct
7 Correct 2118 ms 93644 KB Output is correct
8 Correct 2149 ms 94728 KB Output is correct
9 Correct 2019 ms 91532 KB Output is correct
10 Correct 2234 ms 93356 KB Output is correct
11 Correct 2176 ms 93140 KB Output is correct
12 Correct 2259 ms 94952 KB Output is correct
13 Correct 2174 ms 95352 KB Output is correct
14 Correct 48 ms 56696 KB Output is correct

Subtask #3
0 / 66.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 56824 KB Output is correct
2 Correct 48 ms 56696 KB Output is correct
3 Correct 49 ms 56696 KB Output is correct
4 Correct 50 ms 56704 KB Output is correct
5 Correct 51 ms 56824 KB Output is correct
6 Correct 51 ms 56696 KB Output is correct
7 Correct 51 ms 56696 KB Output is correct
8 Correct 49 ms 56928 KB Output is correct
9 Correct 47 ms 56696 KB Output is correct
10 Correct 49 ms 56696 KB Output is correct
11 Correct 52 ms 56824 KB Output is correct
12 Correct 53 ms 56952 KB Output is correct
13 Correct 52 ms 56824 KB Output is correct
14 Correct 52 ms 56904 KB Output is correct
15 Correct 53 ms 56924 KB Output is correct
16 Correct 54 ms 56952 KB Output is correct
17 Correct 54 ms 56964 KB Output is correct
18 Correct 54 ms 56952 KB Output is correct
19 Correct 52 ms 56800 KB Output is correct
20 Correct 53 ms 56952 KB Output is correct
21 Correct 53 ms 56956 KB Output is correct
22 Correct 52 ms 56824 KB Output is correct
23 Correct 55 ms 56924 KB Output is correct
24 Correct 52 ms 56824 KB Output is correct
25 Correct 53 ms 56844 KB Output is correct
26 Correct 52 ms 56824 KB Output is correct
27 Correct 52 ms 56952 KB Output is correct
28 Correct 53 ms 56952 KB Output is correct
29 Correct 57 ms 56952 KB Output is correct
30 Correct 52 ms 56932 KB Output is correct
31 Correct 55 ms 56888 KB Output is correct
32 Correct 53 ms 56824 KB Output is correct
33 Correct 53 ms 56824 KB Output is correct
34 Correct 52 ms 56952 KB Output is correct
35 Correct 52 ms 56828 KB Output is correct
36 Correct 53 ms 56828 KB Output is correct
37 Correct 53 ms 56952 KB Output is correct
38 Correct 52 ms 56824 KB Output is correct
39 Correct 52 ms 56952 KB Output is correct
40 Correct 54 ms 56952 KB Output is correct
41 Correct 49 ms 56824 KB Output is correct
42 Correct 2183 ms 93388 KB Output is correct
43 Correct 2105 ms 91976 KB Output is correct
44 Correct 2187 ms 92276 KB Output is correct
45 Correct 2160 ms 91416 KB Output is correct
46 Correct 2151 ms 93100 KB Output is correct
47 Correct 2123 ms 92868 KB Output is correct
48 Correct 2118 ms 93644 KB Output is correct
49 Correct 2149 ms 94728 KB Output is correct
50 Correct 2019 ms 91532 KB Output is correct
51 Correct 2234 ms 93356 KB Output is correct
52 Correct 2176 ms 93140 KB Output is correct
53 Correct 2259 ms 94952 KB Output is correct
54 Correct 2174 ms 95352 KB Output is correct
55 Correct 48 ms 56696 KB Output is correct
56 Correct 2894 ms 90900 KB Output is correct
57 Correct 2892 ms 89348 KB Output is correct
58 Execution timed out 3022 ms 89548 KB Time limit exceeded
59 Halted 0 ms 0 KB -