Create VAR-solutions#1.cpp

abhisheks008 · Oct 1, 2020 · ae751f4 · ae751f4
1 parent 3e0bcb2
commit ae751f4
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/Project Euler - HackerRank/#1.cpp b/Project Euler - HackerRank/#1.cpp
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+
+t=int(input())
+def ar(x):
+    return x*(x+1);
+for i in range(t):
+    n =int(input())
+    n -=1;
+    a=int(n/3);
+    b=int(n/5);
+    c=int(n/15);
+    print(int(int(3*ar(a) + 5*ar(b) - 15*ar(c))>>1));