Submission #931687

# Submission time Handle Problem Language Result Execution time Memory
931687 2024-02-22T09:25:18 Z irmuun Sequence (APIO23_sequence) C++17
Compilation error
0 ms 0 KB
#include<bits/stdc++.h>
#include "sequence.h"
 
using namespace std;
 
#define ll long long
#define pb push_back
#define ff first
#define ss second
#define all(s) s.begin(),s.end()
#define rall(s) s.rbegin(),s.rend()

const ll INF=-1e18;

struct lazySegtree{
    ll n;
    vector<ll>t,lazy;
    lazySegtree(ll n) : n(n) {
        t.resize(4*n,0);
        lazy.resize(4*n,0);
        build(1,0,n);
    }
    void push(ll node){
        t[node*2]+=lazy[node];
        lazy[node*2]+=lazy[node];
        t[node*2+1]+=lazy[node];
        lazy[node*2+1]+=lazy[node];
        lazy[node]=0;
    }
    void build(ll node,ll l,ll r){
        if(l==r){
            t[node]=0;
            return;
        }
        ll mid=(l+r)/2;
        build(node*2,l,mid);
        build(node*2+1,mid+1,r);
    }
    void update(ll node,ll l,ll r,ll L,ll R,ll val){
        if(L>R) return;
        if(L==l&&R==r){
            t[node]+=val;
            lazy[node]+=val;
        }
        else{
            push(node);
            ll mid=(l+r)/2;
            update(node*2,l,mid,L,min(R,mid),val);
            update(node*2+1,mid+1,r,max(L,mid+1),R,val);
            t[node]=max(t[node*2],t[node*2+1]);
        }
    }
    ll query(ll node,ll l,ll r,ll L,ll R){
        if(L>R) return -INF;
        if(L==l&&R==r) return t[node];
        push(node);
        ll mid=(l+r)/2;
        return max(query(node*2,l,mid,L,min(R,mid)),query(node*2+1,mid+1,r,max(L,mid+1),R));
    }
};
 
int sequence(int N,vector<int>A){//sub5
    vector<int>pos[N+5];
    for(int i=0;i<N;i++){
        pos[A[i]].pb(i+1);
    }
    lazySegtree(N);
    for(int i=1;i<=N;i++){
        sg.update(1,0,N,i,N,1);
    }
    int ans=1;
    for(int i=1;i<=N;i++){
        for(int j:pos[i]){
            sg.update(1,0,N,j,N,-1);
        }
        for(int j:pos[i]){
            sg.update(1,0,N,j,N,-1);
        }
        if(pos[i].size()==2){
            int l=pos[i][0],r=pos[i][1];
            int mn=sg.query(1,0,N,0,l-1),mx=sg.query(1,0,N,r,N);
            if(mx<-2||mn>2)
            else{
                ans=2;
            }
        }
    }
    return ans;
}

Compilation message

sequence.cpp: In function 'int sequence(int, std::vector<int>)':
sequence.cpp:67:16: warning: unnecessary parentheses in declaration of 'N' [-Wparentheses]
   67 |     lazySegtree(N);
      |                ^
sequence.cpp:67:17: error: declaration of 'lazySegtree N' shadows a parameter
   67 |     lazySegtree(N);
      |                 ^
sequence.cpp:62:18: note: 'int N' previously declared here
   62 | int sequence(int N,vector<int>A){//sub5
      |              ~~~~^
sequence.cpp:67:18: error: no matching function for call to 'lazySegtree::lazySegtree()'
   67 |     lazySegtree(N);
      |                  ^
sequence.cpp:18:5: note: candidate: 'lazySegtree::lazySegtree(long long int)'
   18 |     lazySegtree(ll n) : n(n) {
      |     ^~~~~~~~~~~
sequence.cpp:18:5: note:   candidate expects 1 argument, 0 provided
sequence.cpp:15:8: note: candidate: 'lazySegtree::lazySegtree(const lazySegtree&)'
   15 | struct lazySegtree{
      |        ^~~~~~~~~~~
sequence.cpp:15:8: note:   candidate expects 1 argument, 0 provided
sequence.cpp:15:8: note: candidate: 'lazySegtree::lazySegtree(lazySegtree&&)'
sequence.cpp:15:8: note:   candidate expects 1 argument, 0 provided
sequence.cpp:68:18: error: no match for 'operator<=' (operand types are 'int' and 'lazySegtree')
   68 |     for(int i=1;i<=N;i++){
      |                 ~^~~
      |                 |  |
      |                 |  lazySegtree
      |                 int
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from sequence.cpp:1:
/usr/include/c++/10/bits/regex.h:1086:5: note: candidate: 'template<class _BiIter> bool std::__cxx11::operator<=(const std::__cxx11::sub_match<_BiIter>&, const std::__cxx11::sub_match<_BiIter>&)'
 1086 |     operator<=(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1086:5: note:   template argument deduction/substitution failed:
sequence.cpp:68:20: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   68 |     for(int i=1;i<=N;i++){
      |                    ^
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from sequence.cpp:1:
/usr/include/c++/10/bits/regex.h:1192:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator<=(std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&, const std::__cxx11::sub_match<_BiIter>&)'
 1192 |     operator<=(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1192:5: note:   template argument deduction/substitution failed:
sequence.cpp:68:20: note:   mismatched types 'std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>' and 'int'
   68 |     for(int i=1;i<=N;i++){
      |                    ^
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from sequence.cpp:1:
/usr/include/c++/10/bits/regex.h:1285:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator<=(const std::__cxx11::sub_match<_BiIter>&, std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)'
 1285 |     operator<=(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1285:5: note:   template argument deduction/substitution failed:
sequence.cpp:68:20: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   68 |     for(int i=1;i<=N;i++){
      |                    ^
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from sequence.cpp:1:
/usr/include/c++/10/bits/regex.h:1359:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<=(const typename std::iterator_traits<_Iter>::value_type*, const std::__cxx11::sub_match<_BiIter>&)'
 1359 |     operator<=(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1359:5: note:   template argument deduction/substitution failed:
sequence.cpp:68:20: note:   'lazySegtree' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   68 |     for(int i=1;i<=N;i++){
      |                    ^
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from sequence.cpp:1:
/usr/include/c++/10/bits/regex.h:1453:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<=(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)'
 1453 |     operator<=(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1453:5: note:   template argument deduction/substitution failed:
sequence.cpp:68:20: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   68 |     for(int i=1;i<=N;i++){
      |                    ^
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from sequence.cpp:1:
/usr/include/c++/10/bits/regex.h:1531:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<=(const typename std::iterator_traits<_Iter>::value_type&, const std::__cxx11::sub_match<_BiIter>&)'
 1531 |     operator<=(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1531:5: note:   template argument deduction/substitution failed:
sequence.cpp:68:20: note:   'lazySegtree' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   68 |     for(int i=1;i<=N;i++){
      |                    ^
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from sequence.cpp:1:
/usr/include/c++/10/bits/regex.h:1631:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<=(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)'
 1631 |     operator<=(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1631:5: note:   template argument deduction/substitution failed:
sequence.cpp:68:20: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   68 |     for(int i=1;i<=N;i++){
      |                    ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:64,
                 from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from sequence.cpp:1:
/usr/include/c++/10/bits/stl_pair.h:508:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator<=(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)'
  508 |     operator<=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:508:5: note:   template argument deduction/substitution failed:
sequence.cpp:68:20: note:   mismatched types 'const std::pair<_T1, _T2>' and 'int'
   68 |     for(int i=1;i<=N;i++){
      |                    ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from sequence.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:384:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator<=(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)'
  384 |     operator<=(const reverse_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:384:5: note:   template argument deduction/substitution failed:
sequence.cpp:68:20: note:   mismatched types 'const std::reverse_iterator<_Iterator>' and 'int'
   68 |     for(int i=1;i<=N;i++){
      |                    ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from sequence.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:422:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator<=(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)'
  422 |     operator<=(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:422:5: note:   template argument deduction/substitution failed:
sequence.cpp:68:20: note:   mismatched types 'const std::reverse_iterator<_Iterator>' and 'int'
   68 |     for(int i=1;i<=N;i++){
      |                    ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from sequence.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1460:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator<=(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)'
 1460 |     operator<=(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1460:5: note:   template argument deduction/substitution failed:
sequence.cpp:68:20: note:   mismatched types 'const std::move_iterator<_IteratorL>' and 'int'
   68 |     for(int i=1;i<=N;i++){
      |                    ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from sequence.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1513:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator<=(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)'
 1513 |     operator<=(const move_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1513:5: note:   template argument deduction/substitution failed:
sequence.cpp:68:20: note:   mismatched types 'const std::move_iterator<_IteratorL>' and 'int'
   68 |     for(int i=1;i<=N;i++){
      |                    ^
In file included from /usr/include/c++/10/bits/basic_string.h:48,
                 from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from sequence.cpp:1:
/usr/include/c++/10/string_view:582:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator<=(std::basic_string_view<_CharT, _Traits>, std::basic_string_view<_CharT, _Traits>)'
  582 |     operator<=(basic_string_view<_CharT, _Traits> __x,
      |     ^~~~~~~~
/usr/include/c++/10/string_view:582:5: note:   template argument deduction/substitution failed:
sequence.cpp:68:20: note:   mismatched types 'std::basic_string_view<_CharT, _Traits>' and 'int'
   68 |     for(int i=1;i<=N;i++){
      |                    ^
In file included from /usr/include/c++/10/bits/basic_string.h:48,
                 from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from sequence.cpp:1:
/usr/include/c++/10/string_view:588:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator<=(std::basic_string_view<_CharT, _Traits>, std::__type_identity_t<std::basic_string_view<_CharT, _Traits> >)'
  588 |     operator<=(basic_string_view<_CharT, _Traits> __x,
      |     ^~~~~~~~
/usr/include/c++/10/string_view:588:5: note:   template argument deduction/substitution failed:
sequence.cpp:68:20: note:   mismatched types 'std::basic_string_view<_CharT, _Traits>' and 'int'
   68 |     for(int i=1;i<=N;i++){
      |                    ^
In file included from /usr/include/c++/10/bits/basic_string.h:48,
                 from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from sequence.cpp:1:
/usr/include/c++/10/string_view:595:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator<=(std::__type_identity_t<std::basic_string_view<_CharT, _Traits> >, std::basic_string_view<_CharT, _Traits>)'
  595 |     operator<=(__type_identity_t<basic_string_view<_CharT, _Traits>> __x,
      |     ^~~~~~~~
/usr/include/c++/10/string_view:595:5: note:   template argument deduction/substitution failed:
sequence.cpp:68:20: note:   'lazySegtree' is not derived from 'std::basic_string_view<_CharT, _Traits>'
   68 |     for(int i=1;i<=N;i++){
      |                    ^
In file included from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from sequence.cpp:1:
/usr/include/c++/10/bits/basic_string.h:6343:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator<=(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 6343 |     operator<=(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6343:5: note:   template argument deduction/substitution failed:
sequence.cpp:68:20: note:   mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and 'int'
   68 |     for(int i=1;i<=N;i++){
      |                    ^
In file included from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from sequence.cpp:1:
/usr/include/c++/10/bits/basic_string.h:6356:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator<=(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*)'
 6356 |     operator<=(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6356:5: note:   template argument deduction/substitution failed:
sequence.cpp:68:20: note:   mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and 'int'
   68 |     for(int i=1;i<=N;i++){
      |                    ^
In file included from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from sequence.cpp:1:
/usr/include/c++/10/bits/basic_string.h:6368:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator<=(const _CharT*, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 6368 |     operator<=(const _CharT* __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6368:5: note:   template argument deduction/substitution failed:
sequence.cpp:68:20: note:   mismatched types 'const _CharT*' and 'int'
   68 |     for(int i=1;i<=N;i++){
      |                    ^
In file included from /usr/include/c++/10/tuple:39,
                 from /usr/include/c++/10/functional:54,
                 from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from sequence.cpp:1:
/usr/include/c++/10/array:299:5: note: candidate: 'template<class _Tp, long unsigned int _Nm> bool std::operator<=(const std::array<_Tp, _Nm>&, const std::array<_Tp, _Nm>&)'
  299 |     operator<=(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>