刚刚我还认为试日报呢

No valid executable file was produced by the compiler
./ccxYUWRq.o: in function `__static_initialization_and_destruction_0(int, int)':
src:(.text+0xe41): relocation truncated to fit: R_X86_64_PC32 against `.bss'
src:(.text+0xe5a): relocation truncated to fit: R_X86_64_PC32 against `.bss'
collect2: 错误：ld 返回 1

前面还有一些警告，但都是关于 stl length 等函数类型的提示