tutorial2.cpp: In function 'int main()':
tutorial2.cpp:18:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
tutorial2.cpp:21:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
/tmp/ccwQ6ifz.o: In function `main':
tutorial2.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccyMpiTJ.o:grader.cpp:(.text.startup+0x0): first defined here
collect2: ld returned 1 exit status