Merge pull request #36 from jatinpandey77/patch-1

Added Modular Exponentiation algorithm

Common Algorithms/modular-exp.c

@@ -0,0 +1,18 @@
+#include <stdio.h>
+
+int power(int x, unsigned int y, int p) { 
+    int res = 1;
+    x = x % p;  
+
+    while (y > 0) {  
+        if (y & 1) 
+            res = (res*x) % p; 
+        y = y>>1; // y = y/2 
+        x = (x*x) % p;   
+    } 
+    return res; 
+}
+int main() {  
+   printf("%u", power(2, 32, 1024)); 
+   return 0; 
+}