armstrong number

C/armstrong.c

@@ -0,0 +1,23 @@
+#include <stdio.h>
+void main() {
+    int n, originalNum, rem, result = 0;
+    printf("Enter a three-digit integer: ");
+    scanf("%d", &n);
+    originalNum = n;
+
+    while (originalNum != 0) {
+       // remainder contains the last digit
+        rem = originalNum % 10;
+
+       result += rem * rem * rem;
+
+       // removing last digit from the orignal number
+       originalNum /= 10;
+    }
+
+    if (result == n)
+        printf("%d is an Armstrong number.", n);
+    else
+        printf("%d is not an Armstrong number.", n);
+
+}