complete exercise 1-3.

2 files changed, 20 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..f47cb20
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.out
diff --git a/src/1-3/fahrenheit_celsius.c b/src/1-3/fahrenheit_celsius.c
new file mode 100644
index 0000000..922506a
--- /dev/null
+++ b/src/1-3/fahrenheit_celsius.c
@@ -0,0 +1,19 @@
+#include "stdio.h"
+
+int main()
+{
+  float fahr, celsius;
+  int lower, upper, step;
+
+  lower = 0;
+  upper = 300;
+  step = 20;
+
+  printf("Fahrenheit Celsius\n");
+  fahr = lower;
+  while (fahr <= upper) {
+    celsius = (5.0/9.0) * (fahr-32.0);
+    printf("%10.0f %7.1f\n", fahr, celsius);
+    fahr = fahr + step;
+  }
+}