#include <bits/stdc++.h>
using namespace std;
const int INF = 2e9+1;
struct Segtree {
int n;
vector<int> st_min, st_max;
Segtree(int N) {
n = N;
st_min = vector<int>(4*n, INF);
st_max = vector<int>(4*n, 0);
}
void push(int p, int l, int r) {
if (l == r) return;
st_min[2*p] = max(st_max[p], min(st_min[2*p], st_min[p]));
st_max[2*p] = min(st_min[p], max(st_max[2*p], st_max[p]));
st_min[2*p+1] = max(st_max[p], min(st_min[2*p+1], st_min[p]));
st_max[2*p+1] = min(st_min[p], max(st_max[2*p+1], st_max[p]));
}
void minimize(int p, int l, int r, int i, int j, int k) {
if (i > j) return;
push(p, l, r);
if (i == l && j == r) {
st_min[p] = min(st_min[p], k);
st_max[p] = min(st_min[p], st_max[p]);
} else {
int m = (l+r)/2;
minimize(2*p, l, m, i, min(m, j), k);
minimize(2*p+1, m+1, r, max(i, m+1), j, k);
}
}
void maximize(int p, int l, int r, int i, int j, int k) {
if (i > j) return;
push(p, l, r);
if (i == l && j == r) {
st_max[p] = max(st_max[p], k);
st_min[p] = max(st_min[p], st_max[p]);
} else {
int m = (l+r)/2;
maximize(2*p, l, m, i, min(m, j), k);
maximize(2*p+1, m+1, r, max(i, m+1), j, k);
}
}
void values(int p, int l, int r, vector<int>& h) {
if (l == r)
h[l] = min(st_min[p], st_max[p]);
else {
push(p, l, r);
int m = (l+r)/2;
values(2*p, l, m, h);
values(2*p+1, m+1, r, h);
}
}
vector<int> final_height() {
vector<int> return_values(n);
values(1, 0, n-1, return_values);
return return_values;
}
};
void buildWall(int n, int k, vector<int> op, vector<int> left, vector<int> right, vector<int> height, vector<int> finalHeight) {
Segtree St(n);
for (int i = 0; i < k; ++i) {
if (op[i] == 1)
St.maximize(1, 0, n-1, left[i], right[i], height[i]);
else
St.minimize(1, 0, n-1, left[i], right[i], height[i]);
}
finalHeight = St.final_height();
}
/*int main() {
int n, k;
cin >> n >> k;
vector<int> op(k), l(k), r(k), h(k), final;
for (int i = 0; i < k; ++i) cin >> op[i] >> l[i] >> r[i] >> h[i];
buildWall(n, k, op, l, r, h, final);
}*/
Compilation message
/usr/bin/ld: /tmp/ccpa8EGH.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
