feat(cses): a few problems

cses/repetitions/.clang-format

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+BasedOnStyle: Google
+AllowShortBlocksOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortCompoundRequirementOnASingleLine: false
+AllowShortEnumsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: false
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLambdasOnASingleLine: false
+AllowShortLoopsOnASingleLine: false

cses/repetitions/.clangd

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+CompileFlags:
+	Add:
+		- -Wall
+		- -Wextra
+		- -Wpedantic
+		- -Wshadow
+		- -DLOCAL
+		- -Wno-unknown-pragmas

cses/repetitions/compile_flags.txt

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+-Wall
+-Wextra
+-Wpedantic
+-Wshadow
+-DLOCAL

cses/repetitions/solution.cc

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+#include <bits/stdc++.h> // {{{
+
+// https://codeforces.com/blog/entry/96344
+
+#pragma GCC optimize("O2,unroll-loops")
+#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
+
+using namespace std;
+
+template <typename T> constexpr T MIN = std::numeric_limits<T>::min();
+
+template <typename T> constexpr T MAX = std::numeric_limits<T>::max();
+
+template <typename T> [[nodiscard]] static T sc(auto &&x) {
+  return static_cast<T>(x);
+}
+
+template <typename T> [[nodiscard]] static T sz(auto &&x) {
+  return static_cast<T>(x.size());
+}
+
+using ll = long long;
+using ld = long double;
+template <typename T> using vec = std::vector<T>;
+template <typename T, size_t N> using arr = std::array<T, N>;
+
+#define ff first
+#define ss second
+#define eb emplace_back
+#define pb push_back
+#define all(x) (x).begin(), (x).end()
+#define rall(x) (x).rbegin(), (x).rend()
+//  }}}
+
+void solve() {
+  string s;
+  cin >> s;
+
+  ll streak = 0, ans = 0;
+  char last = ' ';
+  for (auto c : s) {
+    if (last == ' ' || last == c) {
+      ++streak;
+      ans = max(ans, streak);
+    } else {
+      streak = 1;
+    }
+    last = c;
+  }
+  cout << ans << endl;
+}
+
+int main() { // {{{
+  cin.tie(nullptr)->sync_with_stdio(false);
+
+  solve();
+
+  return 0;
+}
+// }}}

cses/repetitions/solution.in

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+ABCDEF

cses/repetitions/solution.out

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+1
+
+[code]: 0
+[time]: 4.20523 ms