languages

commit c79e86f984cc2437a4125ac086ea9a149877ac62
parent bd329151ff09ea9a14a7d2eec3b266ee1e03cbee
Author: Evan Alba <evanalba@protonmail.com>
Date:   Sun, 25 Jun 2023 18:59:02 -0700

feat: Added C directory.

Diffstat:
A
c/README.md
 | 
4
++++
A
c/binary.c
 | 
39
+++++++++++++++++++++++++++++++++++++++

2 files changed, 43 insertions(+), 0 deletions(-)
diff --git a/c/README.md b/c/README.md
@@ -0,0 +1,4 @@
+## Installation
+1. Compile the `binary.c` file into an executable file.
+2. Set the PATH variable in your operating system for where your `binary.c` executable file is located.
+3. Execute the executable command in your command-line interface to run the binary command.
diff --git a/c/binary.c b/c/binary.c
@@ -0,0 +1,39 @@
+#include <math.h>
+#include <stdio.h>
+
+// binary: Test the user on the binary powers of 2.
+void binary() {
+	int power = 0;
+	int max_power = 64;
+	while (power <= max_power) {
+		printf("What is 2 to the power of %u?\n", power);
+		
+		// Make sure there is no input buffer overflow.
+		char line[256];
+		if (fgets(line, sizeof(line), stdin)) {
+
+			unsigned long long answer;
+    			if (sscanf(line, "%llu", &answer) == 1) {
+				printf("You have entered: %llu\n", answer);
+				if (answer == pow(2, power)) {
+					printf("You are correct!\n\n");
+					power++;
+				} else {
+					printf("Incorrect. The answer is %.0f."
+					"\n", pow(2, power));
+					return;
+				}
+			} else {
+				printf("\nYou have entered a non-integer " 
+				"answer. Please try again.\n");
+			}
+		}	
+	}
+	printf("\n\nCongrats! You are highly skilled in the powers of 2.\n\n");
+}
+
+int main(int argc, char* argv[]) {
+	binary();
+	return 0;
+}
+