#include<bits/stdc++.h>
using namespace std;
struct segTree{
vector<pair<int, int>> v;
int siz;
void init(int n){
siz = 1;
while(siz < n) siz *= 2;
v.assign(2 * siz, {0, 0});
}
void push(int x){
v[2 * x + 1].first = min(max(v[2 * x + 1].first, v[x].first), v[x].second);
v[2 * x + 1].second = max(min(v[2 * x + 1].second, v[x].second), v[x].first);
v[2 * x + 2].first = min(max(v[2 * x + 2].first, v[x].first), v[x].second);
v[2 * x + 2].second = max(min(v[2 * x + 2].second, v[x].second), v[x].first);
}
void set(int l, int r, int x, int lx, int rx, int h, int t){
if(lx >= l && rx <= r){
if(t == 1){
v[x].first = max(v[x].first, h);
v[x].second = max(v[x].second, v[x].first);
}else{
v[x].second = min(v[x].second, h);
v[x].first = min(v[x].first, v[x].second);
}
return;
}else if(lx >= r || rx <= l) return;
push(x);
v[x] = {0, 100000};
int m = (lx + rx) / 2;
set(l, r, 2 * x + 1, lx, m, h, t);
set(l, r, 2 * x + 2, m, rx, h, t);
}
void set(int l, int r, int h, int t){
set(l, r, 0, 0, siz, h, t);
}
int calc(int i, int x, int lx, int rx){
if(rx - lx == 1){
return v[x].first;
}
push(x);
v[x] = {0, 100000};
int m = (lx + rx) / 2;
if(i < m) return calc(i, 2 * x + 1, lx, m);
else return calc(i, 2 * x + 2, m, rx);
}
int calc(int i){
return calc(i, 0, 0, siz);
}
};
//~ int op[1000];
//~ int lft[1000];
//~ int rght[1000];
//~ int height[1000];
//~ int finalHeight[1000];
void buildWall(int n, int k, int* op, int* left, int* right,int* height, int* finalHeight){
segTree st; st.init(n);
for(int i = 0; i < k; i++){
st.set(left[i], right[i] + 1, height[i], op[i]);
}
for(int i = 0; i < n; i++){
finalHeight[i] = st.calc(i);
}
}
//~ int main(){
//~ int n, k; cin >> n >> k;
//~ for(int i = 0; i < k; i++){
//~ cin >> op[i] >> lft[i] >> rght[i] >> height[i];
//~ }
//~ buildWall(n, k);
//~ for(int i = 0; i < n; i++){
//~ cout << finalHeight[i] << " ";
//~ }
}
Compilation message
wall.cpp:79:1: error: expected declaration before '}' token
79 | }
| ^
