/tmp/cc7oZRr2.o: In function `AddEdge(int, int)':
foo.cc:(.text+0xb2): relocation truncated to fit: R_X86_64_PC32 against symbol `cnt' defined in .bss section in /tmp/cc7oZRr2.o
foo.cc:(.text+0xbe): relocation truncated to fit: R_X86_64_PC32 against symbol `cnt' defined in .bss section in /tmp/cc7oZRr2.o
foo.cc:(.text+0xd4): relocation truncated to fit: R_X86_64_PC32 against symbol `head' defined in .bss section in /tmp/cc7oZRr2.o
/tmp/cc7oZRr2.o: In function `SPFA(int)':
foo.cc:(.text+0x10f): relocation truncated to fit: R_X86_64_PC32 against symbol `dis' defined in .bss section in /tmp/cc7oZRr2.o
foo.cc:(.text+0x152): relocation truncated to fit: R_X86_64_PC32 against symbol `dis' defined in .bss section in /tmp/cc7oZRr2.o
foo.cc:(.text+0x159): relocation truncated to fit: R_X86_64_PC32 against symbol `vis' defined in .bss section in /tmp/cc7oZRr2.o
foo.cc:(.text+0x160): relocation truncated to fit: R_X86_64_PC32 against symbol `head' defined in .bss section in /tmp/cc7oZRr2.o
/tmp/cc7oZRr2.o: In function `main':
foo.cc:(.text.startup+0x167): relocation truncated to fit: R_X86_64_PC32 against symbol `cnt' defined in .bss section in /tmp/cc7oZRr2.o
foo.cc:(.text.startup+0x16e): relocation truncated to fit: R_X86_64_PC32 against symbol `exist' defined in .bss section in /tmp/cc7oZRr2.o
foo.cc:(.text.startup+0x175): relocation truncated to fit: R_X86_64_PC32 against symbol `head' defined in .bss section in /tmp/cc7oZRr2.o
foo.cc:(.text.startup+0x3f4): additional relocation overflows omitted from the output
collect2: error: ld returned 1 exit status