powerful competitive programming workspace template

.clang-format

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+BasedOnStyle: Google
+UseTab: Never
+IndentWidth: 4
+TabWidth: 4
+BreakBeforeBraces: Attach
+AllowShortIfStatementsOnASingleLine: false
+IndentCaseLabels: true
+ColumnLimit: 0
+AccessModifierOffset: -4
+NamespaceIndentation: All
+FixNamespaceComments: false

.clangd

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+CompileFlags:
+  Add: 
+    - -DLOCAL
+    - -D_GLIBCXX_DEBUG
+    - -std=c++23
+    - -Wall
+    - -Wextra
+    - -Werror=uninitialized
+    - -Werror=return-type
+    - -Wno-unused-const-variable
+    - -Wno-sign-compare

.gitignore

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+/gmon.out
+/out.txt
+/in.txt
+/tmp/

.pch.cpp

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+#include <bits/stdc++.h>

.vscode/launch.json

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+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "(gdb) 启动",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/tmp/${fileBasenameNoExtension}",
+            "args": [],
+            "stopAtEntry": false,
+            "cwd": "${workspaceFolder}",
+            "environment": [],
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "setupCommands": [
+                {
+                    "description": "为 gdb 启用整齐打印",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": false
+                },
+                {
+                    "description": "将反汇编风格设置为 Intel",
+                    "text": "-gdb-set disassembly-flavor intel",
+                    "ignoreFailures": false
+                }
+            ],
+            "preLaunchTask": "C/C++: make"
+        }
+    ]
+}

.vscode/tasks.json

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+{
+    "tasks": [
+        {
+            "type": "cppbuild",
+            "label": "C/C++: make",
+            "command": "make",
+            "args": [
+                "SRC=${fileBasename}"
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            }
+        }
+    ],
+    "version": "2.0.0"
+}

Makefile

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+CXX := clang++
+CXXFLAGS := -fdiagnostics-color=always -g \
+	-Wall -Wextra \
+	-Werror=uninitialized \
+	-Werror=return-type \
+	-Wno-sign-compare \
+	-Wno-unused-const-variable \
+	-fsanitize=undefined \
+	-D_GLIBCXX_DEBUG \
+	-pg \
+	-DLOCAL \
+	-std=c++23 \
+	-pipe
+
+SRC ?= template.cpp
+TARGET := tmp/$(basename $(notdir $(SRC)))
+PCH := tmp/precompiled.pch
+PCH_HEADER := .pch.cpp
+
+all: $(TARGET)
+
+$(TARGET): $(SRC) $(PCH) | tmp
+	$(CXX) $(CXXFLAGS) -include-pch $(PCH) $(SRC) -o $(TARGET)
+
+tmp:
+	mkdir -p tmp
+
+$(PCH): $(PCH_HEADER) | tmp
+	$(CXX) $(CXXFLAGS) -x c++-header $(PCH_HEADER) -o $(PCH)
+
+clean:
+	rm -rf tmp
+

template.cpp

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+#include <bits/stdc++.h>
+
+using namespace std;
+
+using int64 = long long;
+const int64 inf = 0x3f3f3f3f;
+const int64 INF = 0x3f3f3f3f3f3f3f3f;
+const int Mod = 1e9 + 7;
+const int N = 3e5 + 10;
+
+void solve() {
+    cout << "Hello world" << '\n';
+}
+
+signed main() {
+#ifndef LOCAL
+    ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
+#endif
+    int t = 1;
+    // cin >> t;
+    while (t--)
+        solve();
+    return 0;
+}