tutorial2.cpp: In function 'int main()':
tutorial2.cpp:14:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
tutorial2.cpp:17:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
/tmp/ccKkEWxI.o: In function `main':
tutorial2.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccn7Nokp.o:grader.cpp:(.text.startup+0x0): first defined here
collect2: ld returned 1 exit status