Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long LL;
const int INF = 0x3f3f3f3f;
const int maxn = 2e5 + 10;
int N, K, C;
char s[maxn];
int dp[maxn], limit[maxn];
vector<int> v[maxn];
int main()
{
    scanf("%d %d %d", &N, &K, &C);
    getchar();
    for(int i = 1; i <= N; i++)
        s[i] = getchar();
    for(int i = 1, mx = 0; i <= N; i++)
    {
        if(s[i] == 'o')
            dp[i] = mx + 1;
        else
            dp[i] = 0;
        if(i - C >= 1)
            mx = max(mx, dp[i - C]);
        v[dp[i]].push_back(i);
    }
    if(!v[K + 1].empty())
    {
        printf("\n");
        return 0;
    }
    if(v[K].size() == 1)
        printf("%d\n", v[K][0]);
    limit[K] = v[K].size();
    for(int i = K; i >= 2; i--)
    {
        for(int j = 0; j < limit[i]; j++)
            limit[i-1] = max(limit[i-1], lower_bound(v[i-1].begin(), v[i-1].end(), v[i][j] - C) - v[i-1].begin());
        if(limit[i-1] == 1)
            printf("%d\n", v[i-1][0]);
    }
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:37:29: error: no matching function for call to 'max(int&, __gnu_cxx::__normal_iterator<int*, std::vector<int> >::difference_type)'
   37 |             limit[i-1] = max(limit[i-1], lower_bound(v[i-1].begin(), v[i-1].end(), v[i][j] - C) - v[i-1].begin());
      |                          ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:37:29: note:   deduced conflicting types for parameter 'const _Tp' ('int' and '__gnu_cxx::__normal_iterator<int*, std::vector<int> >::difference_type' {aka 'long int'})
   37 |             limit[i-1] = max(limit[i-1], lower_bound(v[i-1].begin(), v[i-1].end(), v[i][j] - C) - v[i-1].begin());
      |                          ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:37:29: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   37 |             limit[i-1] = max(limit[i-1], lower_bound(v[i-1].begin(), v[i-1].end(), v[i][j] - C) - v[i-1].begin());
      |                          ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~