tutorial2.c: In function ‘main’:
tutorial2.c:8:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &a);
^
tutorial2.c:13:3: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &arr[i]);
^
/tmp/ccKWk84j.o: In function `main':
tutorial2.c:(.text.startup+0x0): multiple definition of `main'
/tmp/ccxibryW.o:grader.c:(.text.startup+0x0): first defined here
/tmp/ccxibryW.o: In function `main':
grader.c:(.text.startup+0x97): undefined reference to `GetMax'
collect2: error: ld returned 1 exit status