Update skeleton

examples/c/float.c

@@ -0,0 +1,35 @@
+double custom_abs(double a) {
+    return a < 0 ? -a : a;
+}
+
+double custom_max(double a, double b) {
+    return a > b ? a : b;
+}
+
+int is_close(double a, double b, double rel_tol, double abs_tol) {
+    return custom_abs(a - b) <= custom_max(rel_tol * custom_max(custom_abs(a), custom_abs(b)), abs_tol);
+}
+
+double average(int len, int a[10]) {
+    int sum = 0;
+    int i;
+
+    for(i = 0; i < len; i++) {
+        sum += a[i];
+    }
+
+    return (double) sum / len;
+}
+
+int main() {
+    int a[10];
+    int len = 10;
+    
+    for (int i = 0; i < len; i++) {
+        a[i] = i;
+    }
+
+    float avg = average(len, a);
+    
+    return is_close(avg, 4.5, 1e-09, 0.1);
+}