+hello.c, +guess.c

.gitignore

@@ -50,3 +50,94 @@ modules.order
 Module.symvers
 Mkfile.old
 dkms.conf
+
+CMakeLists.txt.user
+CMakeCache.txt
+CMakeFiles
+CMakeScripts
+Testing
+Makefile
+cmake_install.cmake
+install_manifest.txt
+compile_commands.json
+CTestTestfile.cmake
+_deps
+CMakeUserPresets.json
+
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# AWS User-specific
+.idea/**/aws.xml
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# Gradle and Maven with auto-import
+# When using Gradle or Maven with auto-import, you should exclude module files,
+# since they will be recreated, and may cause churn.  Uncomment if using
+# auto-import.
+# .idea/artifacts
+# .idea/compiler.xml
+# .idea/jarRepositories.xml
+# .idea/modules.xml
+# .idea/*.iml
+# .idea/modules
+# *.iml
+# *.ipr
+
+# CMake
+cmake-build-*/
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# File-based project format
+*.iws
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# SonarLint plugin
+.idea/sonarlint/
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+# Editor-based Rest Client
+.idea/httpRequests
+
+# Android studio 3.1+ serialized cache file
+.idea/caches/build_file_checksums.ser

CMakeLists.txt

@@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 3.25)
+project(2024-cpl-coding C)
+
+set(CMAKE_C_STANDARD 17)
+
+add_executable(hello hello.c)
+add_executable(guess guess.c)

guess.c

@@ -0,0 +1,60 @@
+//
+// Created by hfwei on 2024/9/19.
+//
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+int main(void) {
+  int high = 100;
+  int chance = 7;
+
+  /*
+   * print the rule of the game
+   */
+  printf("The computer will generate a random number between 1 and %d\n"
+         "You have %d chances.\n",
+         high, chance);
+  /*
+   * generate a random number
+   */
+  srand(time(NULL)); // use current time as seed for random generator
+  // 0 .. RAND_MAX
+  // 1 .. high
+  int secret = rand() % high + 1;
+  printf("secret = %d\n", secret);
+
+  while (chance > 0) {
+
+    /*
+     *  let the player enter his/her guess number
+     */
+    printf("Enter your guess.\n");
+
+    /*
+     * store the guess number,
+     * compare it with the secret,
+     * and inform the player of the result
+     */
+    int guess;
+    scanf("%d", &guess);
+
+    if (guess == secret) {
+      printf("You Win!\n");
+      break;
+    } else if (guess > secret) {
+      printf("guess > secret\n");
+    } else {
+      printf("guess < secret\n");
+    }
+
+    /*
+     * loop: repeat until the player wins or loses
+     */
+    chance--;
+    // chance = chance - 1;
+  }
+
+  return 0;
+}

hello.c

@@ -0,0 +1,32 @@
+//
+// Created by hfwei on 2024/9/19.
+//
+
+// single-line comment
+// Created by hfwei on 2023/9/15.
+//
+
+/*
+ * this is a multi-line comment
+ * this is a multi-line comment
+ */
+
+// directive
+// .h: header file
+// stdio: standard input/output
+#include <stdio.h>
+
+/*
+ * main function
+ * y <- f(x)
+ * int: integer (return)
+ */
+int main(void) {
+  // "hello world\n": string
+  // printf: print + f (format)
+  printf("Hello World\n");
+
+  // return statement (return to operating system)
+  // 0: exit code
+  return 0;
+}