func_code_string: #include <bits/stdc++.h>   #pragma comment(linker,  /STACK:32100000 )   #pragma GCC optimize( O3 )   using namespace std;   void solve() {     int n, k;     string str;     cin >> n >> k >> str;     string need;     for (int i = 0; i < k - 1; i++) {       need +=  () ;     }     for (int i = 0; i < (n - 2 * k + 2) / 2; i++) {       need +=  ( ;     }     for (int i = 0; i < (n - 2 * k + 2) / 2; i++) {       need +=  ) ;     }     vector<pair<int, int>> ans;     for (int i = 0; i < n; i++) {       if (str[i] == need[i]) {         continue;       }       int pos = i + 1;       for (; pos < n && str[pos] != need[i]; pos++)         ;       ans.push_back({i, pos});       for (int j = 0; j < (pos - i + 1) / 2; j++) {         swap(str[i + j], str[pos - j]);       }     }     cout << ans.size() <<   n ;     for (auto &i : ans) {       cout << i.first + 1 <<     << i.second + 1 <<   n ;     }   }   int main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     cin.sync_with_stdio(0);     cout.sync_with_stdio(0);     cout.precision(9);     srand(time(0));     int q;     cin >> q;     while (q--) {       solve();     }     return 0;   }   