oj.uz

Submission #115252

# Submission time Handle Problem Language Result Execution time Memory
115252 2019-06-06T12:02:09 Z AngusRitossa Bitaro, who Leaps through Time (JOI19_timeleap) C++14
34 / 100
 3000 ms 124132 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
};
bool isaquery;
zigzag merge(zigzag a, zigzag b)
{
	assert(b.add.size() || !isaquery);
	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)
		{
			zigzag ans = a;
			ans.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;
					ans.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) 
				{
					ans.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;
					ans.add.push_back({ { a.b, 1.1e9 }, { 0, am }});
				}
			}
			ans.addtoall += b.addtoall;
			ans.height = b.height;
			return ans;
		}
		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 merge(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;
		}
		isaquery = 1;
		zigzag q = query(a, c-1);
		isaquery = 0;
		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:200:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &q);
  ~~~~~^~~~~~~~~~~~~~~~
timeleap.cpp:201:35: 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:204:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld", &T[i]);
   ~~~~~^~~~~~~~~~~~~~~
timeleap.cpp:205:23: 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:206:13: 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 49 ms 56824 KB Output is correct
2 Correct 48 ms 56824 KB Output is correct
3 Correct 49 ms 56696 KB Output is correct
4 Correct 48 ms 56760 KB Output is correct
5 Correct 47 ms 56828 KB Output is correct
6 Correct 49 ms 56704 KB Output is correct
7 Correct 49 ms 56696 KB Output is correct
8 Correct 50 ms 56824 KB Output is correct
9 Correct 99 ms 56948 KB Output is correct
10 Correct 50 ms 56696 KB Output is correct
11 Correct 52 ms 56952 KB Output is correct
12 Correct 54 ms 56952 KB Output is correct
13 Correct 55 ms 56952 KB Output is correct
14 Correct 55 ms 56952 KB Output is correct
15 Correct 57 ms 56952 KB Output is correct
16 Correct 56 ms 57080 KB Output is correct
17 Correct 61 ms 56952 KB Output is correct
18 Correct 56 ms 56952 KB Output is correct
19 Correct 54 ms 57080 KB Output is correct
20 Correct 55 ms 56952 KB Output is correct
21 Correct 55 ms 56952 KB Output is correct
22 Correct 51 ms 56952 KB Output is correct
23 Correct 55 ms 57080 KB Output is correct
24 Correct 55 ms 57052 KB Output is correct
25 Correct 54 ms 57080 KB Output is correct
26 Correct 55 ms 57080 KB Output is correct
27 Correct 55 ms 56952 KB Output is correct
28 Correct 56 ms 56952 KB Output is correct
29 Correct 55 ms 56952 KB Output is correct
30 Correct 55 ms 57080 KB Output is correct
31 Correct 55 ms 56948 KB Output is correct
32 Correct 56 ms 56956 KB Output is correct
33 Correct 54 ms 56960 KB Output is correct
34 Correct 54 ms 56952 KB Output is correct
35 Correct 54 ms 56960 KB Output is correct
36 Correct 56 ms 56952 KB Output is correct
37 Correct 54 ms 56952 KB Output is correct
38 Correct 56 ms 56952 KB Output is correct
39 Correct 56 ms 56952 KB Output is correct
40 Correct 55 ms 56952 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 2234 ms 120704 KB Output is correct
2 Correct 2079 ms 118584 KB Output is correct
3 Correct 2130 ms 119132 KB Output is correct
4 Correct 2128 ms 117904 KB Output is correct
5 Correct 2219 ms 120600 KB Output is correct
6 Correct 2191 ms 120056 KB Output is correct
7 Correct 2138 ms 121080 KB Output is correct
8 Correct 2150 ms 123412 KB Output is correct
9 Correct 2036 ms 118436 KB Output is correct
10 Correct 2258 ms 120948 KB Output is correct
11 Correct 2300 ms 120796 KB Output is correct
12 Correct 2362 ms 123380 KB Output is correct
13 Correct 2381 ms 124132 KB Output is correct
14 Correct 52 ms 56824 KB Output is correct

Subtask #3
0 / 66.0

# Verdict Execution time Memory Grader output
1 Correct 49 ms 56824 KB Output is correct
2 Correct 48 ms 56824 KB Output is correct
3 Correct 49 ms 56696 KB Output is correct
4 Correct 48 ms 56760 KB Output is correct
5 Correct 47 ms 56828 KB Output is correct
6 Correct 49 ms 56704 KB Output is correct
7 Correct 49 ms 56696 KB Output is correct
8 Correct 50 ms 56824 KB Output is correct
9 Correct 99 ms 56948 KB Output is correct
10 Correct 50 ms 56696 KB Output is correct
11 Correct 52 ms 56952 KB Output is correct
12 Correct 54 ms 56952 KB Output is correct
13 Correct 55 ms 56952 KB Output is correct
14 Correct 55 ms 56952 KB Output is correct
15 Correct 57 ms 56952 KB Output is correct
16 Correct 56 ms 57080 KB Output is correct
17 Correct 61 ms 56952 KB Output is correct
18 Correct 56 ms 56952 KB Output is correct
19 Correct 54 ms 57080 KB Output is correct
20 Correct 55 ms 56952 KB Output is correct
21 Correct 55 ms 56952 KB Output is correct
22 Correct 51 ms 56952 KB Output is correct
23 Correct 55 ms 57080 KB Output is correct
24 Correct 55 ms 57052 KB Output is correct
25 Correct 54 ms 57080 KB Output is correct
26 Correct 55 ms 57080 KB Output is correct
27 Correct 55 ms 56952 KB Output is correct
28 Correct 56 ms 56952 KB Output is correct
29 Correct 55 ms 56952 KB Output is correct
30 Correct 55 ms 57080 KB Output is correct
31 Correct 55 ms 56948 KB Output is correct
32 Correct 56 ms 56956 KB Output is correct
33 Correct 54 ms 56960 KB Output is correct
34 Correct 54 ms 56952 KB Output is correct
35 Correct 54 ms 56960 KB Output is correct
36 Correct 56 ms 56952 KB Output is correct
37 Correct 54 ms 56952 KB Output is correct
38 Correct 56 ms 56952 KB Output is correct
39 Correct 56 ms 56952 KB Output is correct
40 Correct 55 ms 56952 KB Output is correct
41 Correct 50 ms 56696 KB Output is correct
42 Correct 2234 ms 120704 KB Output is correct
43 Correct 2079 ms 118584 KB Output is correct
44 Correct 2130 ms 119132 KB Output is correct
45 Correct 2128 ms 117904 KB Output is correct
46 Correct 2219 ms 120600 KB Output is correct
47 Correct 2191 ms 120056 KB Output is correct
48 Correct 2138 ms 121080 KB Output is correct
49 Correct 2150 ms 123412 KB Output is correct
50 Correct 2036 ms 118436 KB Output is correct
51 Correct 2258 ms 120948 KB Output is correct
52 Correct 2300 ms 120796 KB Output is correct
53 Correct 2362 ms 123380 KB Output is correct
54 Correct 2381 ms 124132 KB Output is correct
55 Correct 52 ms 56824 KB Output is correct
56 Execution timed out 3040 ms 115312 KB Time limit exceeded
57 Halted 0 ms 0 KB -