This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
const int N = 2e6 + 5;
const int inf = 1e9 + 7;
struct Node {
int sum;
int mx = inf;
int mn = 0;
}
st[N * 4];
void push (int x) {
st[x * 2].mn = min(st[x].mx, max(st[x].mn, st[x * 2].mn));
st[x * 2].mx = max(st[x].mn, min(st[x].mx, st[x * 2].mx));
st[x * 2 + 1].mn = min(st[x].mx, max(st[x].mn, st[x * 2 + 1].mn));
st[x * 2 + 1].mx = max(st[x].mn, min(st[x].mx, st[x * 2 + 1].mx));
st[x].mn = 0;
st[x].mx = inf;
}
void update (int l, int r, int h, int op, int x = 1, int L = 1, int R = N - 1) {
if (L > r || R < l) return;
if (l <= L && R <= r) {
if (op == 1) {
st[x].mn = max(st[x].mn, h);
st[x].mx = max(st[x].mx, h);
}
else {
st[x].mn = min(st[x].mn, h);
st[x].mx = min(st[x].mx, h);
}
}
else {
push(x);
int M = (L + R) / 2;
update(l, r, h, op, x * 2, L, M);
update(l, r, h, op, x * 2 + 1, M + 1, R);
}
}
int get (int pos, int x = 1, int L = 1, int R = N - 1) {
if (L == R)
return st[x].mn;
push(x);
int M = (L + R) / 2;
if (pos <= M)
return get(pos, x * 2, L, M);
return get(pos, x * 2 + 1, M + 1, R);
}
void buildWall (int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]) {
// cout << st[0].mx << ' '<<st[0].mn << '\n';
for (int i = 0; i < k; i++) {
update(left[i] + 1, right[i] + 1, height[i], op[i]);
}
for (int i = 1; i <= n; i++) {
finalHeight[i - 1] = get(i);
// cout << get(i) << ' ';
}
}
// signed main() {
// ios_base::sync_with_stdio(0);
// cin.tie(0);
//
// 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 height[] = {4, 1, 5, 3, 5, 0};
// int finalHeight[10];
// buildWall(10, 6, op, left, right, height, finalHeight);
//
// return 0;
// }
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