artclass.cpp: In function 'int main()':
artclass.cpp:20:25: warning: 'sn' may be used uninitialized in this function [-Wmaybe-uninitialized]
20 | double result = tsn / (double) sn;
| ^~~~~~~~~~~
/usr/bin/ld: /tmp/ccD13Ntd.o: in function `main':
artclass.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccU7dowf.o:grader.c:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccU7dowf.o: in function `main':
grader.c:(.text.startup+0x200): undefined reference to `style'
collect2: error: ld returned 1 exit status