Added 546A - Soldier and Bananas.cpp

Author: vikashpatel24

546A - Soldier and Bananas.cpp

@@ -0,0 +1,22 @@
+#include<bits/stdc++.h>
+using namespace std;
+
+// Code Written By: Vikash Patel
+
+int main()
+{
+    int k,n,w;
+    cin>>k>>n>>w;
+    int total = 0;
+    int i=1;
+    while(i<=w)
+    {
+        total+=i*k;
+        i++;
+    }
+    int p=total-n;
+    if(p>0)
+    cout<<p<<endl;
+    else
+    cout<<"0"<<endl;
+}