summaryrefslogtreecommitdiff
path: root/problem2/problem2.c
diff options
context:
space:
mode:
authorKai Stevenson <kai@kaistevenson.com>2023-03-31 23:06:23 -0700
committerKai Stevenson <kai@kaistevenson.com>2023-03-31 23:06:23 -0700
commit506f390293f6497dbb3e38031a92e018de3403f8 (patch)
treed7f6192354415d1b2e6c04e232ef407294e0fa17 /problem2/problem2.c
Diffstat (limited to 'problem2/problem2.c')
-rw-r--r--problem2/problem2.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/problem2/problem2.c b/problem2/problem2.c
new file mode 100644
index 0000000..1fa0997
--- /dev/null
+++ b/problem2/problem2.c
@@ -0,0 +1,20 @@
+/*
+ Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be: 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ... By considering the terms in the Fibonacci sequence whose values do not exceed four million, find the sum of the even-valued terms.
+*/
+
+#include <stdio.h>
+
+int main() {
+ unsigned int l = 1;
+ unsigned int h = 2;
+ unsigned long int sum = 0;
+ while (h < 40000000) {
+ if (h % 2 == 0) {
+ sum += h;
+ }
+ unsigned int t = h;
+ h += l;
+ l = t;
+ }
+ printf("%ul\n", sum);
+}