#ifndef Local
#pragma GCC optimize("O3,unroll-loops")
#endif
#include <bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <unistd.h>
using namespace __gnu_pbds;
template <class T>
using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
#define int long long
#define vi vector<int>
#define vvi vector<vi>
#define pii pair<int, int>
#define vpi vector<pii>
#define vvpi vector<vpi>
#define vb vector<bool>
#define vvb vector<vb>
#define endl '\n'
#define sp << " " <<
#define F(i, s, n) for(int i = s; i < n; i++)
#define pb push_back
#define fi first
#define se second
int mod = 998244353;
int inf = 1e16;
const int N = 5e5+5;
#include "wall.h"
struct Node {
int mn, mx;
};
struct Update {
int mn, mx, last;
};
Node merge(Node a, Node b) {
return {-inf, inf};
}
Update merge(Update a, Update b) {
Update c = {max(a.mn, b.mn), min(a.mx, b.mx), b.last};
if(b.last == 2) c.last = a.last;
if(c.mn > c.mx) {
if(c.last) c.mn = c.mx;
else c.mx = c.mn;
}
return c;
}
Node merge(Node a, Update b) {
Node c = {max(a.mn, b.mn), min(a.mx, b.mx)};
if(c.mn > c.mx) {
if(b.last) c.mn = c.mx;
else c.mx = c.mn;
}
return c;
}
Node t[4*N];
Update lazy[4*N];
int a[N];
void push(int node, int l, int r) {
t[node] = merge(t[node], lazy[node]);
if(l != r) {
lazy[node*2+1] = merge(lazy[node*2+1], lazy[node]);
lazy[node*2+2] = merge(lazy[node*2+2], lazy[node]);
}
lazy[node] = {-inf, inf, 2};
}
void build(int node, int l, int r) {
lazy[node] = {-inf, inf, 2};
if(l == r) {
t[node] = {-inf, inf};
return;
}
int mid = (l + r) >> 1;
build(node*2+1, l, mid);
build(node*2+2, mid+1, r);
}
void update(int node, int l, int r, int L, int R, int a, int b) {
push(node, l, r);
if(l > R || r < L) return;
if(l >= L && r <= R) {
if(b == 0) lazy[node] = {a, inf, 0};
else lazy[node] = {-inf, a, 1};
push(node, l, r);
return;
}
int mid = (l + r) >> 1;
update(node*2+1, l, mid, L, R, a, b);
update(node*2+2, mid+1, r, L, R, a, b);
}
Node query(int node, int l, int r, int idx) {
push(node, l, r);
if(l > idx || r < idx) return {-inf, inf};
if(l == r) {
return t[node];
}
int mid = (l + r) >> 1;
if(idx <= mid) return query(node*2+1, l, mid, idx);
else return query(node*2+2, mid+1, r, idx);
}
void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]) {
build(0, 0, n-1);
F(i, 0, k) {
if(op[i] == 1) {
update(0, 0, n-1, left[i], right[i], height[i], 0);
} else {
update(0, 0, n-1, left[i], right[i], height[i], 1);
}
}
F(i, 0, n) {
Node q = query(0, 0, n-1, i);
finalHeight[i] = min(max(q.mn, 0ll), q.mx);
}
}
/*
void solve() {
int op[] = {1, 2, 2, 1, 1, 2};
int left[] = {1, 4, 3, 0, 2, 6};
int right[] = {8, 9, 6, 5, 2, 7};
int heights[] = {4, 1, 5, 3, 5, 0};
int res[6];
buildWall(10, 6, op, left, right, heights, res);
F(i, 0, 10) cout << res[i] << " ";
cout << endl;
}
void setIO() {
ios_base::sync_with_stdio(0); cin.tie(0);
#ifdef Local
freopen("local.in", "r", stdin);
freopen("local.out", "w", stdout);
#else
// freopen("poetry.in","r",stdin);
// freopen("poetry.out","w",stdout);
#endif
}
signed main() {
setIO();
int t = 1;
//cin >> t;
while(t--) solve();
}*/
Compilation message
/usr/bin/ld: /tmp/ccx3AaEK.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
