diff --git a/2141. Maximum Running Time of N Computers 1 b/2141. Maximum Running Time of N Computers 1
new file mode 100644
index 0000000..cfc8da3
--- /dev/null
+++ b/2141. Maximum Running Time of N Computers 1	
@@ -0,0 +1,21 @@
+class Solution {
+public:
+    long long maxRunTime(int n, vector<int>& batteries) {
+        long long sum = 0;
+        for (long long b : batteries) sum += b;
+        
+        long long l = 0, r = sum / n;
+        
+        while (l < r) {
+            long long m = (l + r + 1) >> 1;
+            long long need = n * m, have = 0;
+            
+            for (long long b : batteries) 
+                have += min(b, m);
+            
+            if (have >= need) l = m;
+            else r = m - 1;
+        }
+        return l;
+    }
+};