Submission #1106592

#	Time	Username	Problem	Language	Result	Execution time	Memory
1106592		YudoTLE	Wall (IOI14_wall)	C++17	Compilation error	0 ms	0 KiB

wall

#include <bits/stdc++.h>
using namespace std;

using ll = long long;
using vi = vector<int>;
using vll = vector<ll>;
using vb = vector<bool>;
using pi = pair<int, int>;
using pll = pair<ll, ll>;

#define fi first
#define se second
#define pb push_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()

struct Query
{
	int type, height;
};


template <typename T>
struct LazySegmentTree
{
	int sz;
	vector<T> tseg;
	vector<Query> tlazy;

	LazySegmentTree(int sz)
		: sz(sz), tseg(sz * 4), tlazy(sz * 4)
	{}

	T _combine(T vl, T vr)
	{
		return vl + vr;
	}

	void _apply(int tl, int tr, int t, Query q)
	{
		if (q.type == 1)
		{
			if (tlazy[t].type == 0)
			{
				tseg[t] = max(tseg[t], q.height);
				tlazy[t] = q;
			}
			if (tlazy[t].type == 1)
			{
				if (tlazy[t].height > q.height)
					return;

				tseg[t] = q.height;
				tlazy[t] = q;
			}
			if (tlazy[t].type == 2)
			{
				tseg[t] = max(tseg[t], tlazy[t].height);
				tlazy[t] = {
					q.type,
					max(tlazy[t].height, q.height)
				};
			}
		}
		if (q.type == 2)
		{
			if (tlazy[t].type == 0)
			{
				tseg[t] = min(tseg[t], q.height);
				tlazy[t] = q;
			}
			if (tlazy[t].type == 1)
			{
				tseg[t] = min(tseg[t], tlazy[t].height);
				tlazy[t] = {
					q.type,
					min(tlazy[t].height, q.height)
				};
			}
			if (tlazy[t].type == 2)
			{
				if (tlazy[t].height < q.height)
					return;

				tseg[t] = q.height;
				tlazy[t] = q;
			}
		}
	}

	void _push_down(int tl, int tr, int t)
	{
		int tm = tl + (tr - tl) / 2;
		_apply(tl, tm, t * 2 + 1, tlazy[t]);
		_apply(tm + 1, tr, t * 2 + 2, tlazy[t]);
		tlazy[t] = {0, 0};
	}

	void update(int l, int r, Query q, int tl=0, int tr=-1, int t=0)
	{
		if (tr == -1) tr += sz;
		if (tr < l || r < tl)
			return;
		if (l <= tl && tr <= r)
		{
			_apply(tl, tr, t, q);
			return;
		}
		_push_down(tl, tr, t);
		int tm = tl + (tr - tl) / 2;
		update(l, r, q, tl, tm, t * 2 + 1);
		update(l, r, q, tm + 1, tr, t * 2 + 2);
		tseg[t] = _combine(tseg[t * 2 + 1], tseg[t * 2 + 2]);
	}

	T query(int i, int tl=0, int tr=-1, int t=0)
	{
		if (tr == -1) tr += sz;
		if (tr < i || i < tl)
			return 0;
		if (tl == tr)
			return tseg[t];
		_push_down(tl, tr, t);
		int tm = tl + (tr - tl) / 2;
		if (i <= tm)
			return query(i, tl, tm, t * 2 + 1);
		else
			return query(i, tm + 1, tr, t * 2 + 2);
	}
};


void solve()
{
	int n, q;
	cin >> n >> q;

	LazySegmentTree<int> st(n + 1);

	while (q--)
	{
		int op, l, r, h;
		cin >> op >> l >> r >> h;

		st.update(l, r, Query{op, h});
	}

	vi ans(n + 1);
	for (int i = 1; i <= n; i++)
		ans[i] = st.query(i);

	for (int i = 1; i <= n; i++)
		cout << ans[i] << " \n"[i==n];
}

int main()
{
	// ios_base::sync_with_stdio(false), cin.tie(0);

	int t = 1;
	// cin >> t;
	while (t--) solve();

	return 0;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccv7TgeR.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccQqSUOR.o:wall.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccv7TgeR.o: in function `main':
grader.cpp:(.text.startup+0x133): undefined reference to `buildWall(int, int, int*, int*, int*, int*, int*)'
collect2: error: ld returned 1 exit status