/usr/bin/ld: /tmp/cc1igbGU.o: in function `main':
stub.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccDa4TPU.o:jumps.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccDa4TPU.o: in function `main':
jumps.cpp:(.text.startup+0x181): undefined reference to `init(int, std::vector<int, std::allocator<int> >)'
/usr/bin/ld: /tmp/cc1igbGU.o: in function `main':
stub.cpp:(.text.startup+0x177): undefined reference to `init(int, std::vector<int, std::allocator<int> >)'
/usr/bin/ld: stub.cpp:(.text.startup+0x1d1): undefined reference to `minimum_jumps(int, int, int, int)'
collect2: error: ld returned 1 exit status