#include <bits/stdc++.h>
using namespace std;
#define FOR(x, y, z) for(int x = (y); x < (z); x++)
#define F0R(x, z) FOR(x, 0, z)
const int mxN = 5e5+10;
int n;
int a[mxN];
int st[mxN];
int par[mxN];
vector<int> v[mxN];
int nums[mxN];
int ans = 0;
int p(int q){
if(par[q]==q) return par[q];
return par[q]=p(par[q]);
}
void comb(int e1, int e2){
e1 = p(e1); e2 = p(e2);
par[e2] = e1;
}
int32_t main(){
ios_base::sync_with_stdio(0); cin.tie(0);
cin >> n;
F0R(i, n){
par[i] = i;
cin >> a[i]; a[i]--;
}
F0R(i, n){
cin >> st[i];
}
F0R(i, n){
int x; cin >> x;
v[a[i]].pb(x);
}
int q = 0;
F0R(i, 2*n){
bool good = 1;
if(q>0){
comb((i-1)%n, i%n);
q--;
good = 0;
}
q += max(siz(v[i%n])-good,0);
}
F0R(i, n){
nums[par[i]]++;
}
F0R(i, n){
set<int> al;
FOR(j, i, i+nums[i]){
trav(x, v[j%n]){
al.insert(x);
}
auto it = al.lower_bound(st[j%n]);
if(it==al.end()) al.erase(al.begin());
else{
ans++;
al.erase(it);
}
}
}
cout << ans << "\n";
return 0;
}
Compilation message
kralj.cpp: In function 'int32_t main()':
kralj.cpp:39:17: error: 'class std::vector<int>' has no member named 'pb'
39 | v[a[i]].pb(x);
| ^~
kralj.cpp:49:18: error: 'siz' was not declared in this scope; did you mean 'sin'?
49 | q += max(siz(v[i%n])-good,0);
| ^~~
| sin
kralj.cpp:57:18: error: 'x' was not declared in this scope
57 | trav(x, v[j%n]){
| ^
kralj.cpp:57:13: error: 'trav' was not declared in this scope
57 | trav(x, v[j%n]){
| ^~~~
