3

du1/.vscode/c_cpp_properties.json

@@ -0,0 +1,22 @@
+{
+    "configurations": [
+        {
+            "name": "Linux",
+            "includePath": [
+                "/usr/include/c++/12",
+                "/usr/include/x86_64-linux-gnu/c++/12",
+                "/usr/include/c++/12/backward",
+                "/usr/lib/gcc/x86_64-linux-gnu/12/include",
+                "/usr/local/include",
+                "/usr/include/x86_64-linux-gnu",
+                "/usr/include"
+            ],
+            "defines": [],
+            "compilerPath": "/usr/bin/gcc",
+            "cStandard": "c17",
+            "cppStandard": "gnu++17",
+            "intelliSenseMode": "linux-gcc-x64"
+        }
+    ],
+    "version": 4
+}

du1/.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "C_Cpp.errorSquiggles": "enabled"
+}

du1/program.c

@@ -0,0 +1,11 @@
+#include <stdio.h>
+
+int main() {
+double x, a, b, c, y;
+
+if (scanf("%lf", &x) != 1) {
+    fprintf(stderr, "Error: failed to read a number for x\n");
+    return;
+}
+    return 0;
+}