From ec4c8006080eedc263fef4d43f66ba84de10c08b Mon Sep 17 00:00:00 2001
From: Jeyell26 <80738021+Jeyell26@users.noreply.github.com>
Date: Sat, 17 Apr 2021 11:33:10 +0800
Subject: [PATCH] Add files via upload

---
 factorial.c | 11 ++++++++---
 fibonacci.c | 14 ++++++++++----
 sum.c       |  9 +++++++--
 3 files changed, 25 insertions(+), 9 deletions(-)

diff --git a/factorial.c b/factorial.c
index a7bf980..5d11f67 100644
--- a/factorial.c
+++ b/factorial.c
@@ -8,7 +8,12 @@
  */
 int factorial (int n) {
     // ADD CODE HERE
-    return 0; // EDIT THIS
+    int i, factorial;
+    factorial = 1;
+    for (i=1;i<=n;i++){
+    	factorial = factorial * i;
+	}
+    return factorial; // EDIT THIS
 }
 
 
@@ -16,7 +21,7 @@ int factorial (int n) {
 int main(void) {
 
     int k=5;
-
+	
     printf("%d! = %d\n", k,factorial(k));
     k = 8;
     printf("%d! = %d\n", k,factorial(k));
@@ -24,4 +29,4 @@ int main(void) {
     printf("%d! = %d\n", k,factorial(k));
 
     return 0;
-}
\ No newline at end of file
+}
diff --git a/fibonacci.c b/fibonacci.c
index b5e464d..d75f053 100644
--- a/fibonacci.c
+++ b/fibonacci.c
@@ -17,9 +17,15 @@
  *      fibonacci(8); //21
  */
 int fibonacci(int k) {
-    //WRITE CODE HERE
-
-    return 0; // EDIT THIS
+    int t1 = 0, t2 = 1, nextTerm = 0;
+	int i;
+    for (i = 1; i < k; i++) {
+        // Prints the first two terms.
+        nextTerm = t1 + t2;
+        t1 = t2;
+        t2 = nextTerm;
+    }
+    return nextTerm; // EDIT THIS
 }
 
 
@@ -33,4 +39,4 @@ int main(void) {
     printf("Fibonacci at %d is %d\n", k, fibonacci(k));
 
     return 0;
-}
\ No newline at end of file
+}
diff --git a/sum.c b/sum.c
index 0ee167a..8334c61 100644
--- a/sum.c
+++ b/sum.c
@@ -14,9 +14,14 @@
  *    series(3,6); //  returns 18. coz, 3 + 4 + 5 + 6
  */ 
 int series(int a, int b){
+	int sum;
     //Write code here
+    int i;
+    for (i=a;i<=b;i++){
+    	sum = sum + i;
+	}
 
-    return 0; //EDIT THIS
+    return sum; //EDIT THIS
 }
 
 
@@ -30,4 +35,4 @@ int main(void) {
     printf("The sum from %d to %d is %d\n",a,b,series(a,b));
 
     return 0;
-}
\ No newline at end of file
+}