func_code_string: #include <bits/stdc++.h>   const int T_DATA = 100000;   const int N = 100000;   int T;   int a, b;   char mp[N + 10];   int n, m;   int l[N + 10], r[N + 10];   int dis[N + 10];   int main() {     scanf( %d , &T);     while (T--) {       scanf( %d %d , &a, &b);       scanf( %s , mp + 1);       n = strlen(mp + 1);       m = 0;       for (int i = 1, j; i <= n; i = j + 1) {         while (i <= n && mp[i] !=  1 ) ++i;         if (i > n) break;         for (j = i; j < n && mp[j + 1] ==  1 ; ++j)           ;         ++m;         l[m] = i, r[m] = j;       }       if (m == 0) {         printf( 0 n );         continue;       }       if (m == 1) {         printf( %d n , a);         continue;       }       for (int i = 1; i <= m - 1; ++i) dis[i] = l[i + 1] - r[i] - 1;       std::sort(dis + 1, dis + m);       int ans = a * m;       for (int ind = 1; ind <= m - 1; ++ind) {         if (dis[ind] * b >= a) continue;         ans -= a - dis[ind] * b;       }       printf( %d n , ans);     }     return 0;   }   