added cses

cses/1069.cpp

@@ -0,0 +1,44 @@
+//URL - https://cses.fi/problemset/task/1069 
+//CSES
+#include <bits/stdc++.h>
+using namespace std;
+
+#ifdef LOCAL
+#define dbg(x) cerr << #x << " = " << x << endl
+#else
+#define dbg(x)
+#endif
+
+#define ll long long
+#define ld long double
+#define ar array
+#define all(x) (x).begin(), (x).end()
+#define sza(x) (int)(x).size()
+
+const ll INF = 1e18;
+const int MOD = 1e9 + 7;
+
+void solve() {
+        string s;
+        cin>>s;
+        int cur = 1, best = 1;
+
+        for(int i =1;i<s.size();i++){
+            
+            if(s[i]==s[i-1]) cur++;
+            else cur =1;
+            best = max(best,cur);
+            
+        }
+        cout<<best;
+}
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(NULL);
+
+    int tc = 1;
+    // cin >> tc;
+    while(tc--) solve();
+}
+