Language: C++

//#define kotani int
#include<iostream>
#include<algorithm>
using namespace std;
int search(int rank);
int time[100000];
int nagase_time[100000];
int n,k;
int ans,www;
int main(){
	cin>>n>>k;
	for(int i=0;i<n;i++){
		cin>>time[i];
	}
	/*k-=n;
	ans=n;
	if(k<0){
		int num=-1;
		for(int i=0;i<k;i++){
			num=+search(num);
			ans+=num;
		}
	}*/
	for(int i=1;i<n;i++){
		nagase_time[i-1]=time[i]-time[i-1]-1;
		//cout<<"ww"<<nagase_time[i-1]<<endl;
	}
	sort(nagase_time,nagase_time+(n-1));
	/*for(int i=0;i<n-1;i++){
		cout<<nagase_time[i]<<endl;
	}*/
	www=n-k;
	ans=0;
	for(int i=0;i<www;i++){
		ans+=nagase_time[i];
	}
	cout<<ans+n<<endl;
}
int search(int rank){
	int min=-1,sub;
	for(int i=0;i<n-1;i++){
		if(time[i+1]-time[i]<min||min==-1){
			sub=min;
			min=time[i+1]-time[i];
		}
		if(min<rank){
			min=sub;
		}
	}
	return min;
}


Compiler output:
a.cc:6:16: error: 'int time [100000]' redeclared as different kind of entity
    6 | int time[100000];
      |                ^
In file included from /usr/include/pthread.h:23,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/gthr-default.h:35,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/gthr.h:157,
                 from /usr/include/c++/14/ext/atomicity.h:35,
                 from /usr/include/c++/14/bits/ios_base.h:39,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:2:
/usr/include/time.h:76:15: note: previous declaration 'time_t time(time_t*)'
   76 | extern time_t time (time_t *__timer) __THROW;
      |               ^~~~
a.cc: In function 'int main()':
a.cc:13:28: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   13 |                 cin>>time[i];
      |                            ^
a.cc:13:20: error: no match for 'operator>>' (operand types are 'std::istream' {aka 'std::basic_istream<char>'} and 'time_t(time_t*) noexcept' {aka 'long int(long int*) noexcept'})
   13 |                 cin>>time[i];
      |                 ~~~^~~~~~~~~
      |                 |          |
      |                 |          time_t(time_t*) noexcept {aka long int(long int*) noexcept}
      |                 std::istream {aka std::basic_istream<char>}
In file included from /usr/include/c++/14/iostream:42:
/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:13:28: error: cannot bind non-const lvalue reference of type 'bool&' to a value of type 'time_t (*)(time_t*) noexcept' {aka 'long int (*)(long int*) noexcept'}
   13 |                 cin>>time[i];
      |                      ~~~~~~^
/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:13:28: error: invalid conversion from 'time_t (*)(time_t*) noexcept' {aka 'long int (*)(long int*) noexcept'} to 'short int' [-fpermissive]
   13 |                 cin>>time[i];
      |                      ~~~~~~^
      |                            |
      |                            time_t (*)(time_t*) noexcept {aka long int (*)(long int*) noexcept}
a.cc:13:28: error: cannot bind rvalue '(short int)(time + ((sizetype)i))' 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:13:28: error: invalid conversion from 'time_t (*)(time_t*) noexcept' {aka 'long int (*)(long int*) noexcept'} to 'short unsigned int' [-fpermissive]
   13 |                 cin>>time[i];
      |                      ~~~~~~^
      |                            |
      |                            time_t (*)(time_t*) noexcept {aka long int (*)(long int*) noexcept}
a.cc:13:28: error: cannot bind rvalue '(short unsigned int)(time + ((sizetype)i))' 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:13:28: error: invalid conversion from 'time_t (*)(time_t*) noexcept' {aka 'long int (*)(long int*) noexcept'} to 'int' [-fpermissive]
   13 |                 cin>>time[i];
      |                      ~~~~~~^
      |                            |
      |                            time_t (*)(time_t*) noexcept {aka long int (*)(long int*) noexcept}
a.cc:13:28: error: cannot bind rvalue '(int)(time + ((sizetype)i))' 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:13:28: error: invalid conversion from 'time_t (*)(time_t*) noexcept' {aka 'long int (*)(long int*) noexcept'} to 'unsigned int' [-fpermissive]
   13 |                 cin>>time[i];
      |                      ~~~~~~^
      |                            |
      |                            time_t (*)(time_t*) noexcept {aka long int (*)(long int*) noexcept}
a.cc:13:28: error: cannot bind rvalue '(unsigned int)(time + ((sizetype)i))' 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:13:28: error: invalid conversion from 'time_t (*)(time_t*) noexcept' {aka 'long int (*)(long int*) noexcept'} to 'long int' [-fpermissive]
   13 |                 cin>>time[i];
      |                      ~~~~~~^
      |                            |
      |                            time_t (*)(time_t*) noexcept {aka long int (*)(long int*) noexcept}
a.cc:13:28: error: cannot bind rvalue '(long int)(time + ((sizetype)i))' 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:13:28: error: invalid conversion from 'time_t (*)(time_t*) noexcept' {aka 'long int (*)(long int*) noexcept'} to 'long unsigned int' [-fpermissive]
   13 |                 cin>>time[i];
      |                      ~~~~~~^
      |                            |
      |                            time_t (*)(time_t*) noexcept {aka long int (*)(long int*) noexcept}
a.cc:13:28: error: cannot bind rvalue '(long unsigned int)(time + ((sizetype)i))' 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:13:28: error: invalid conversion from 'time_t (*)(time_t*) noexcept' {aka 'long int (*)(long int*) noexcept'} to 'long long int' [-fpermissive]
   13 |                 cin>>time[i];
      |                      ~~~~~~^
      |                            |
      |                            time_t (*)(time_t*) noexcept {aka long int (*)(long int*) noexcept}
a.cc:13:28: error: cannot bind rvalue '(long long int)(time + ((sizetype)i))' 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:13:28: error: invalid conversion from 'time_t (*)(time_t*) noexcept' {aka 'long int (*)(long int*) noexcept'} to 'long long unsigned int' [-fpermissive]
   13 |                 cin>>time[i];
      |                      ~~~~~~^
      |                            |
      |                            time_t (*)(time_t*) noexcept {aka long int (*)(long int*) noexcept}
a.cc:13:28: error: cannot bind rvalue '(long long unsigned int)(time + ((sizetype)i))' 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:13:28: error: invalid conversion from 'time_t (*)(time_t*) noexcept' {aka 'long int (*)(long int*) noexcept'} to 'void*' [-fpermissive]
   13 |                 cin>>time[i];
      |                      ~~~~~~^
      |                            |
      |                            time_t (*)(time_t*) noexcept {aka long int (*)(long int*) noexcept}
a.cc:13:28: error: cannot bind rvalue '(void*)(time + ((sizetype)i))' to 'void*&'
/usr/include/c++/14/istream:122:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__