/usr/bin/ld: /tmp/ccPXeIEg.o: in function `main':
answer.code:(.text.startup+0x0): multiple definition of `main'; /tmp/cctLmA7h.o:implementer.cpp:(.text.startup+0x0): first defined here
/tmp/ccPXeIEg.o: in function `__tcf_0':
answer.code:(.text+0x9): relocation truncated to fit: R_X86_64_PC32 against symbol `g' defined in .bss section in /tmp/ccPXeIEg.o
/tmp/ccPXeIEg.o: in function `dfs(long long, long long)':
answer.code:(.text+0x6a): relocation truncated to fit: R_X86_64_PC32 against symbol `p' defined in .bss section in /tmp/ccPXeIEg.o
answer.code:(.text+0x9e): relocation truncated to fit: R_X86_64_PC32 against symbol `timer' defined in .bss section in /tmp/ccPXeIEg.o
answer.code:(.text+0xa5): relocation truncated to fit: R_X86_64_PC32 against symbol `tin' defined in .bss section in /tmp/ccPXeIEg.o
answer.code:(.text+0xac): relocation truncated to fit: R_X86_64_PC32 against symbol `g' defined in .bss section in /tmp/ccPXeIEg.o
answer.code:(.text+0xc4): relocation truncated to fit: R_X86_64_PC32 against symbol `timer' defined in .bss section in /tmp/ccPXeIEg.o
answer.code:(.text+0xd7): relocation truncated to fit: R_X86_64_PC32 against symbol `pref' defined in .bss section in /tmp/ccPXeIEg.o
answer.code:(.text+0x103): relocation truncated to fit: R_X86_64_PC32 against symbol `timer' defined in .bss section in /tmp/ccPXeIEg.o
answer.code:(.text+0x10a): relocation truncated to fit: R_X86_64_PC32 against symbol `tout' defined in .bss section in /tmp/ccPXeIEg.o
/tmp/ccPXeIEg.o: in function `parent(long long, long long)':
answer.code:(.text+0x127): relocation truncated to fit: R_X86_64_PC32 against symbol `tin' defined in .bss section in /tmp/ccPXeIEg.o
answer.code:(.text+0x13a): additional relocation overflows omitted from the output
collect2: error: ld returned 1 exit status