照着readme文档做了一遍，但是运行不了实例程序

#include <graphics.h>
#include <conio.h>
int main()
{
    initgraph(640, 480);
    circle(320, 240, 100);
    _getch();
    return 0;
}

下面的报错为：

F:/TDM-GCC-64/bin/../lib/gcc/x86_64-w64-mingw32/10.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\ADMINI~1\AppData\Local\Temp\cc1e2FF6.o:13.cpp:(.text+0x1e): undefined reference to `initgraph(int, int, int)'
F:/TDM-GCC-64/bin/../lib/gcc/x86_64-w64-mingw32/10.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\ADMINI~1\AppData\Local\Temp\cc1e2FF6.o:13.cpp:(.text+0x33): undefined reference to `circle(int, int, int)'
collect2.exe: error: ld returned 1 exit status
[Finished in 1.4s]

有没有大佬能告诉我这个问题该怎么解决呀。