Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
template <typename X> ostream& operator << (ostream& x,const vector<X>& v){for(ll i=0;i<v.size();++i) x<<v[i]<<" ";return x;}
template <typename X> ostream& operator << (ostream& x,const set<X>& v){for(auto it:v) x<<it<<" ";return x;}
template <typename X, typename Y> ostream& operator << (ostream& x, const pair<X,Y>& v) {x<<v.ff<<" "<<v.ss;return x;}
template <typename T, typename S> ostream& operator << (ostream& os, const map<T, S>& v) { for (auto it : v) os << it.first << "=>" << it.second << endl; return os; }
struct pair_hash {inline std::size_t operator()(const std::pair<ll, ll> & v) const {return v.first*31+v.second;}};
#pragma comment(linker, "/stack:200000000")
#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define speed ios_base::sync_with_stdio(false);cin.tie(NULL)
#define pb push_back
#define fr first
#define sc second
#define prnt(m) for(auto it = m.begin() ; it != m.end() ; ++it){cout<<*it<<endl;}
#define tra(it,m) for(auto it=m.begin();it!=m.end();++it)
#define DBG(x) cout<<"# # #     "<<x<<'\n';
#define fri(i,s,n) for(int i=s;i<n;i++)
#define mod 1000000007LL
#define mod2 998244353
#define vct2 vector<vector<ll>>
#define vct vector<ll>
#define pll pair<ll,ll>
#define rz(n) resize(n)
#define all(v) v.begin(),v.end()
#define mkp make_pair
#define arrin(a,n) for(ll i = 0; i < n ; i++){cin>>a[i];}
#define arrout(a,n) for(ll i = 0;i < n; i++){cout<<a[i]<<" ";}
#define ex(s) cout<<s<<endl,exit(0);
#define inf 1e18
#define five 100005;
#define six 1000005;
#define prllclock cerr<<"Time : "<<1000*(ld)clock()/(ld)CLOCKS_PER_SEC<<"ms\n";
//___________________________________________________________________________________________________________________________________________________________
const int N = five;
pair<int,int> dp[2][2*N];
int main()
{
       int n,k,c;
       cin>>n>>k>>c;
       string s ;
       cin>>s;
       dp[0][0].fr = (s[0] == 'o');
       if(s[0]=='o'){
              dp[0][0].sc = 0;
       }
       else{
              dp[0][0].sc = -1;
       }
       fri(i,1,n){
              if(s[i]=='x'){
                     dp[0][i] = dp[0][i-1];
                     continue;
              }
              if(i-c-1<0){
                     if(dp[0][i-1].fr==0){
                            dp[0][i] = {1,i};
                     }
                     else{
                            dp[0][i] = dp[0][i-1];
                     }
                     continue;
              }
              dp[0][i] = dp[0][i-1];
              if(dp[0][i-c-1].fr+1>dp[0][i-1].fr){
                     dp[0][i] = {dp[0][i-c-1].fr+1,i};
              }
       }
       if(n==1){
              cout<<1<<endl;
              return 0;
       }
       dp[1][n-1].fr = (s[n-1] == 'o');
       if(s[n-1]=='o'){
              dp[1][n-1].sc = n-1;
       }
       else{
              dp[1][n-1].sc = n+4;
       }
       for(int i = n-2 ; i >= 0 ; i--){
              dp[1][i] = dp[1][i+1];
              if(s[i]=='x'){
                     dp[1][i] = dp[1][i+1];
                     continue;
              }
              if(i+c+1>=n){
                     if(dp[1][i+1].fr==0){
                            dp[1][i] = {1,i};
                     }
                     continue;
              }
              if(dp[1][i+c+1].fr+1>dp[1][i+1].fr){
                     dp[1][i] = {dp[1][i+c+1].fr+1,i};
              }
       }
       vct ans;
       if(dp[1][1].fr < k){
              ans.pb(1);
       }
       fri(i,1,n-1){
              if(s[i]=='o'){
                     int x1,x2;
                     x1 = x2 = 0;
                     int i1 = dp[1][i+1].sc;
                     if(i1==n+4){
                            x1 = dp[0][i-1].fr;
                     }
                     else{
                            x1 = -1 // ;dp[1][i+1].fr + dp[0][min(i-1,dp[1][i+1].sc-c-1)].fr;
                     }
                     int i2 = dp[0][i-1].sc;
                     if(i2==-1){
                            x2 = dp[1][i+1].fr;
                     }
                     else{
                            x2 = dp[0][i-1].fr + dp[1][max(i+1,dp[0][i-1].sc+c+1)].fr;
                     }
                     if(max(x1,x2) < k) {
                             ans.pb(i+1);
                     }
              }
       }
       if(dp[0][n-2].fr < k){
              ans.pb(n);
       }
       for(int i : ans){
              cout<<i<<endl;
       }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:112:36: error: expected ';' before '}' token
  112 |                             x1 = -1 // ;dp[1][i+1].fr + dp[0][min(i-1,dp[1][i+1].sc-c-1)].fr;
      |                                    ^
      |                                    ;
  113 |                      }
      |                      ~