rail.cpp: In function 'void findLocation(int, int, int*, int*)':
rail.cpp:10:10: warning: unused variable 'k' [-Wunused-variable]
int i,j,k,l,r,ld,rd;
^
/tmp/ccXE7y8p.o: In function `main':
grader.cpp:(.text.startup+0x299): undefined reference to `findLocation'
/tmp/ccQzEtHa.o: In function `findLocation(int, int, int*, int*)':
rail.cpp:(.text+0x28d): undefined reference to `getDistance(int, int)'
rail.cpp:(.text+0x36e): undefined reference to `getDistance(int, int)'
rail.cpp:(.text+0x381): undefined reference to `getDistance(int, int)'
collect2: error: ld returned 1 exit status