/in/foo.c: In function 'main':
/in/foo.c:33:9: warning: implicit declaration of function 'print' [-Wimplicit-function-declaration]
         print("%d\n",ans);
         ^~~~~
/tmp/ccG0iSGP.o: In function `main':
foo.c:(.text.startup+0x130): undefined reference to `print'
collect2: error: ld returned 1 exit status