Language: C++

#include<iostream>
#include<algorithm>
#include<vector>
#include<functional>
using namespace std;
int main(){
	int n, k, pre0, pre1, ans, start1;
	char s[100001];
	vector<int> cou0, cou1;
	
	cin >> n >> k >> s;
	pre0 = pre1 = 0;
	start1 = 0;
	if(s[0] == '1') start1 = 1;
	for(int i = 0;s[i] != '\0';i++){
		if(s[i] == '0') {
			pre0++;
			if(pre1 == 0) continue;
			cou1.push_back(pre1);
			pre1 = 0;
		}
		else{
			pre1++;
			if(pre0 == 0) continue;
			cou0.push_back(pre0);
			pre0 = 0;
		}
	}
	if(pre0 != 0) cou0.push_back(pre0);
	if(pre1 != 0) cou1.push_back(pre1);

	ans = 0;
	for(int i = 0;i < cou0.size();i++) {
		int range = min(k, cou0.size() - i);
		int miria;
		if(start1 == 0) if(i != 0) miria += pre1[i-1];
		for(int j = i;j < i + range;j++){
			miria += cou0[j] + cou1[j];
		}
		if(ans < miria) ans = miria;
	}
	cout << ans << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:34:32: error: no matching function for call to 'min(int&, std::vector<int>::size_type)'
   34 |                 int range = min(k, cou0.size() - i);
      |                             ~~~^~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:34:32: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'std::vector<int>::size_type' {aka 'long unsigned int'})
   34 |                 int range = min(k, cou0.size() - i);
      |                             ~~~^~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:2:
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:34:32: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   34 |                 int range = min(k, cou0.size() - i);
      |                             ~~~^~~~~~~~~~~~~~~~~~~~
a.cc:36:57: error: invalid types 'int[int]' for array subscript
   36 |                 if(start1 == 0) if(i != 0) miria += pre1[i-1];
      |                                                         ^