finally 104-fibonacci.c has been added :)

Author: hackerSa3edy

0x02-functions_nested_loops/104-fibonacci.c

@@ -0,0 +1,49 @@
+#include <stdio.h>
+
+/**
+ * main - prints the first 50 Fibonacci numbers.
+ *
+ * Return: Always success (0).
+ */
+int main(void)
+{
+	long int firstNum = 1;
+	long int secondNum = 2;
+	long int sum, sumNdHalf, num1StHalf, num1NdHalf, num2StHalf, num2NdHalf;
+	int overflow, safe, n;
+
+	overflow = safe = 0;
+	printf("%ld, %ld", firstNum, secondNum);
+	for (n = 0; n < 96; n++)
+	{
+		if (overflow == 0)
+		{
+			sum = firstNum + secondNum;
+			printf(", %ld", sum);
+			firstNum = secondNum;
+			secondNum = sum;
+			if ((firstNum + secondNum) < 0)
+				overflow = 1;
+		}
+		else
+		{
+			if (safe == 0)
+			{
+				num1NdHalf = firstNum % 1000000000;
+				num2NdHalf = secondNum % 1000000000;
+				num1StHalf = firstNum / 1000000000;
+				num2StHalf = secondNum / 1000000000;
+				safe = 1;
+			}
+			sumNdHalf = num1NdHalf + num2NdHalf;
+			sum = num1StHalf + num2StHalf + (sumNdHalf / 1000000000);
+			printf(", %ld%ld", sum, sumNdHalf % 1000000000);
+			num1NdHalf = num2NdHalf;
+			num1StHalf = num2StHalf;
+			num2NdHalf = sumNdHalf % 1000000000;
+			num2StHalf = sum;
+		}
+	}
+	printf("\n");
+	return (0);
+}