Language: C++

/*
我的心脏怦怦跳，监管者就在附近
name:
Algorithm:
writer:Lxs(cdx)
place:
nothing is impossible
*/
#pragma GCC optimize(3,"Ofast","inline")
#include<bits/stdc++.h>
#include<string>
#include<iostream>
#include<cmath>
#include<set>
#include<stack>
#include<queue>
#include<unistd.h>
#include<stdio.h>
#include<cstring>
#define random(a,b) (rand()%(b-a+1)+a)
using namespace std;
bool prime(int x){
	 int i;
	 if(x<2) return 0;
	 for(i=2;i*i<=x;i++){
		if(x%i==0){return 0;}
	 }
	 return 1;
}
string str[1010101];
int maxs;
string st;
map<string,int> a;
int main()
{
	int s=0;
	int n,i;
	cin>>n;
	cin.get();
	for(i=0;i<n;i++){
		cin>>str;
	}
	sort(str+0,str+n);
//	for(i=0;i<n;i++) cout<<str[i]<<" ";
	st=str[0];s++;
	int o=0;
	maxs=s;
	for(i=1;i<=n;i++){
		if(str[i]==st){
			s++;
		}
		else{
		//	cout<<st<<" "<<s<<endl;
			a[st]=s;
			if(s>=maxs){
				maxs=s;
			}
			s=1;
			st=str[i];
			o++; 
		}
	}
	for(i=0;i<=o;i++){
		if(a[str[i]]==maxs) {
			cout<<str[i]<<endl;
			a[str[i]]=-1;
		}
	}
	return 0;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:41:20: error: no match for 'operator>>' (operand types are 'std::istream' {aka 'std::basic_istream<char>'} and 'std::string [1010101]' {aka 'std::__cxx11::basic_string<char> [1010101]'})
   41 |                 cin>>str;
      |                 ~~~^~~~~
      |                 |    |
      |                 |    std::string [1010101] {aka std::__cxx11::basic_string<char> [1010101]}
      |                 std::istream {aka std::basic_istream<char>}
In file included from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127,
                 from a.cc:10:
/usr/include/c++/14/istream:170:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(bool&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  170 |       operator>>(bool& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:170:7: note:   conversion of argument 1 would be ill-formed:
a.cc:41:22: error: cannot bind non-const lvalue reference of type 'bool&' to a value of type 'std::string*' {aka 'std::__cxx11::basic_string<char>*'}
   41 |                 cin>>str;
      |                      ^~~
/usr/include/c++/14/istream:174:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(short int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match)
  174 |       operator>>(short& __n);
      |       ^~~~~~~~
/usr/include/c++/14/istream:174:7: note:   conversion of argument 1 would be ill-formed:
a.cc:41:22: error: invalid conversion from 'std::string*' {aka 'std::__cxx11::basic_string<char>*'} to 'short int' [-fpermissive]
   41 |                 cin>>str;
      |                      ^~~
      |                      |
      |                      std::string* {aka std::__cxx11::basic_string<char>*}
a.cc:41:22: error: cannot bind rvalue '(short int)((std::string*)(& str))' to 'short int&'
/usr/include/c++/14/istream:177:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(short unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  177 |       operator>>(unsigned short& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:177:7: note:   conversion of argument 1 would be ill-formed:
a.cc:41:22: error: invalid conversion from 'std::string*' {aka 'std::__cxx11::basic_string<char>*'} to 'short unsigned int' [-fpermissive]
   41 |                 cin>>str;
      |                      ^~~
      |                      |
      |                      std::string* {aka std::__cxx11::basic_string<char>*}
a.cc:41:22: error: cannot bind rvalue '(short unsigned int)((std::string*)(& str))' to 'short unsigned int&'
/usr/include/c++/14/istream:181:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match)
  181 |       operator>>(int& __n);
      |       ^~~~~~~~
/usr/include/c++/14/istream:181:7: note:   conversion of argument 1 would be ill-formed:
a.cc:41:22: error: invalid conversion from 'std::string*' {aka 'std::__cxx11::basic_string<char>*'} to 'int' [-fpermissive]
   41 |                 cin>>str;
      |                      ^~~
      |                      |
      |                      std::string* {aka std::__cxx11::basic_string<char>*}
a.cc:41:22: error: cannot bind rvalue '(int)((std::string*)(& str))' to 'int&'
/usr/include/c++/14/istream:184:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  184 |       operator>>(unsigned int& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:184:7: note:   conversion of argument 1 would be ill-formed:
a.cc:41:22: error: invalid conversion from 'std::string*' {aka 'std::__cxx11::basic_string<char>*'} to 'unsigned int' [-fpermissive]
   41 |                 cin>>str;
      |                      ^~~
      |                      |
      |                      std::string* {aka std::__cxx11::basic_string<char>*}
a.cc:41:22: error: cannot bind rvalue '(unsigned int)((std::string*)(& str))' to 'unsigned int&'
/usr/include/c++/14/istream:188:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  188 |       operator>>(long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:188:7: note:   conversion of argument 1 would be ill-formed:
a.cc:41:22: error: invalid conversion from 'std::string*' {aka 'std::__cxx11::basic_string<char>*'} to 'long int' [-fpermissive]
   41 |                 cin>>str;
      |                      ^~~
      |                      |
      |                      std::string* {aka std::__cxx11::basic_string<char>*}
a.cc:41:22: error: cannot bind rvalue '(long int)((std::string*)(& str))' to 'long int&'
/usr/include/c++/14/istream:192:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  192 |       operator>>(unsigned long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:192:7: note:   conversion of argument 1 would be ill-formed:
a.cc:41:22: error: invalid conversion from 'std::string*' {aka 'std::__cxx11::basic_string<char>*'} to 'long unsigned int' [-fpermissive]
   41 |                 cin>>str;
      |                      ^~~
      |                      |
      |                      std::string* {aka std::__cxx11::basic_string<char>*}
a.cc:41:22: error: cannot bind rvalue '(long unsigned int)((std::string*)(& str))' to 'long unsigned int&'
/usr/include/c++/14/istream:199:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  199 |       operator>>(long long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:199:7: note:   conversion of argument 1 would be ill-formed:
a.cc:41:22: error: invalid conversion from 'std::string*' {aka 'std::__cxx11::basic_string<char>*'} to 'long long int' [-fpermissive]
   41 |                 cin>>str;
      |                      ^~~
      |                      |
      |                      std::string* {aka std::__cxx11::basic_string<char>*}
a.cc:41:22: error: cannot bind rvalue '(long long int)((std::string*)(& str))' to 'long long int&'
/usr/include/c++/14/istream:203:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  203 |       operator>>(unsigned long long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:203:7: note:   conversion of argument 1 would be ill-formed:
a.cc:41:22: error: invalid conversion from 'std::string*' {aka 'std::__cxx11::basic_string<char>*'} to 'long long unsigned int' [-fpermissive]
   41 |                 cin>>str;
      |                      ^~~
      |                      |
      |                      std::string* {aka std::__cxx11::basic_string<char>*}
a.cc:41:22: error: cannot bind rvalue '(long long unsigned int)((std::string*)(& str))' to 'long long unsigned int&'
/usr/include/c++/14/istream:328:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(void*&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  328 |       operator>>(void*& __p)
      |       ^~~~~~~~
/usr/include/c++/14/istream:328:7: note:   conversion of argument 1 would be ill-formed:
a.cc:41:22: error: cannot bind non-const lvalue reference of type 'void*&' to an rvalue of type 'void*'
   41 |                 cin>>str;
      |                      ^~~
/usr/include/c++/14/istream:219:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(float&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
  219 |       operator>>(float& __f)
      |       ^~~~~~~~
/usr/include/c++/14/istream:219:25: note:   no known conversion for argument 1 from 'std::string [1010101]' {aka 'std::__cxx11::basic_string<char> [1010101]'} to 'float&'
  219 |       operator>>(float& __f)
      |                  ~~~~~~~^~~
/usr/include/c++/14/istream:223:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(double&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
  223 |       operator>>(double& __f)
      |       ^~~~~~~~
/usr/include/c++/14/istream:223:26: note:   no known conversion for argument 1 from 'std::string [1010101]' {aka 'std::__cxx11::basic_string<char> [1010101]'} to 'double&'
  223 |       operator>>(double& __f)
      |                  ~~~~~~~~^~~
/usr/include/c++/14/istream:227:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long double&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
  227 |       operator>>(long double& __f)
      |       ^~~~~~~~
/usr/include/c++/14/istream:227:31: note:   no known conversion for argument 1 from 'std::string [1010101]' {aka