Create RENT.cpp

Hackerearth/RENT.cpp

@@ -0,0 +1,45 @@
+#include <bits/stdc++.h> 
+using namespace std; 
+unsigned long long int findMaxSubarraySum(unsigned long long int arr[],unsigned long long int n,unsigned long long int sum) 
+{ 
+	unsigned long long int curr_sum = arr[0], max_sum = 0, start = 0; 
+	for (unsigned long long int i = 1; i < n; i++) { 
+		if (curr_sum <= sum) 
+		max_sum = max(max_sum, curr_sum); 
+		while (curr_sum + arr[i] > sum && start < i) { 
+			curr_sum -= arr[start]; 
+			start++; 
+		} 
+		curr_sum += arr[i]; 
+	} 
+	if (curr_sum <= sum) 
+		max_sum = max(max_sum, curr_sum); 
+	return max_sum; 
+} 
+int main() 
+{ 
+   unsigned long long int n;
+    cin>>n;
+    unsigned long long int x;
+    cin>>x;
+    long long int y;
+    cin>>y;
+    unsigned long long int max=0;
+    unsigned long long int sum;
+    unsigned long long int array[n];
+    unsigned long long int arr[n];
+	 for(unsigned long long int i=0; i<n; i++){
+         cin>> array[i];
+     }
+      while(y--){
+          max = max+ findMaxSubarraySum(array, n, x);  
+         x= 2*x;
+         for (unsigned long long int k=0; k<n; k++){
+        arr[k] = 2*array[k];
+        array[k] = arr[k];     
+    }
+ }
+    cout<<max;
+
+	return 0; 
+}