#include <bits/stdc++.h>
using std::cin, std::cout, std::vector, std::set, std::endl, std::string, std::map,std::pair,std::queue, std::max, std::min;
#ifdef LOCAL
#define file freopen("in.txt","r",stdin);freopen("out.txt","w",stdout);
#else
#define file ;;
#endif
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
template <typename T>
using Tree = tree<T, null_type, std::less<T>, rb_tree_tag, tree_order_statistics_node_update>;
#include <random>
class segt{
private:
int n;
vector<int> tree;
int build(int node, int l, int r, vector<int>& a){
if(l==r){
return tree[node] = a[l-1];
}
int mid = (l+r)/2;
return tree[node]=max(build(node*2, l, mid, a), build(node*2+1, mid+1, r, a));
}
void build(int n, vector<int> a){
build(1, 1, n, a);
}
int update(int node, int l, int r, int x, int b){
if(l==r){
return tree[node]=b;
}
int mid = (l+r)/2;
if(mid>=x) update(node*2,l,mid,x, b);
else update(node*2+1,mid+1,r,x, b);
return tree[node] = max(tree[node*2],tree[node*2+1]);
}
int query(int node, int l, int r, int x, int y){
if(l>=x && r<=y){
return tree[node];
}
int mid = (l+r)/2;
if(mid<x) return query(node*2+1, mid+1, r, x, y);
else if(mid>=y) return query(node*2, l, mid, x, y);
return max(query(node*2,l,mid,x,y),query(node*2+1,mid+1,r,x,y));
}
public:
segt(vector<int> a){
n = a.size();
tree.resize(4*n+5);
cp;
build(n,a);
cp;
}
void update(int x, int b){
update(1,1,n,x,b);
}
int query(int l, int r){
return query(1,1,n,l,r);
}
};
int main(){
file;
int n,q;
cin >> n >> q;
string s;
cin >> s;
vector<int>a(n);
for(int i=0;i<n;i++) a[i]=(s[i] == '1' ? 0:q+5);
cp;
segt ss(a);
cp;
vector<vector<int>> hist(n+1,vector<int>(1,0));
for(int i=1;i<=q;i++){
string ty;
cin >> ty;
if(ty[0]=='q'){
int a,b;
cin >> a >> b;
cout << max(0,i-ss.query(a,b)) << endl;
}
else if(ty[0]=='t'){
int a;
cin >> a;
ss.update(a,i);
}
}
return 0;
}
Compilation message
street_lamps.cpp: In constructor 'segt::segt(std::vector<int>)':
street_lamps.cpp:58:3: error: 'cp' was not declared in this scope
58 | cp;
| ^~
street_lamps.cpp: In function 'int main()':
street_lamps.cpp:80:2: error: 'cp' was not declared in this scope
80 | cp;
| ^~
