func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 200005;   int n, a, b, k, pr[N], seq[N];   char s[200005];   int main() {     scanf( %d%d%d%d , &n, &a, &b, &k);     scanf( %s , s + 1);     int len = strlen(s + 1), lst = 0, cur = 0;     for (int i = 1; i <= len; ++i) {       if (s[i] ==  1 ) {         cur += (i - lst - 1) / b;         lst = i;       }     }     if (s[len] !=  1 ) cur += (len - lst) / b;     int ans = 0, now = 0, da = 0;     for (int i = 1; i <= len; ++i) {       now++;       if (s[i] ==  1 ) now = 0;       if (now == b) {         now = 0;         ans++;         seq[ans] = i;         if (cur - ans < a) break;       }     }     printf( %d n , ans);     for (int i = 1; i <= ans; ++i) printf( %d  , seq[i]);     return 0;   }   