write function in cpp to clear bits in range (i, j)

justanindieguy · Jan 30, 2023 · 7d84abb · 7d84abb
1 parent f358196
commit 7d84abb
Showing 1 changed file with 21 additions and 0 deletions.
diff --git a/Bit-manipulationTechniques/ClearBitsInRange/main.cpp b/Bit-manipulationTechniques/ClearBitsInRange/main.cpp
@@ -0,0 +1,21 @@
+#include <iostream>
+
+using namespace std;
+
+void clearBitsInRange(int &n, int i, int j)
+{
+    int a = -1 << (j + 1);
+    int b = (1 << i) - 1;
+    int mask = a | b;
+    n = n & mask;
+}
+
+int main()
+{
+    int n = 31, i = 1, j = 3;
+
+    clearBitsInRange(n, i, j);
+    cout << n << endl;
+
+    return 0;
+}