CLion运行多个main函数

修改CMakeLists.txt

cmake_minimum_required(VERSION 3.17)
project(codeforces)

set(CMAKE_CXX_STANDARD 20)

#add_executable(codeforces main.cpp)
# 遍历项目根目录下所有的 .cpp 文件
file (GLOB_RECURSE files *.cpp)
foreach (file ${files})
    string(REGEX REPLACE ".+/(.+)\..*" "\1" exe ${file})
    add_executable (${exe} ${file})
    message (    -- src/${exe}.cpp will be compiled to bin/${exe})
endforeach ()

创建新的cpp文件后，reload project