/in/foo.cc: In function 'int main()':
/in/foo.cc:40:6: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  /**/for(int i=1;i<=j;i++)
      ^~~
/in/foo.cc:42:3: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
   return 0;
   ^~~~~~
/tmp/ccwB4Jmm.o: In function `qssort(long, long)':
foo.cc:(.text+0x19): relocation truncated to fit: R_X86_64_PC32 against symbol `a' defined in .bss section in /tmp/ccwB4Jmm.o
/tmp/ccwB4Jmm.o: In function `main':
foo.cc:(.text.startup+0x4d): relocation truncated to fit: R_X86_64_PC32 against symbol `a' defined in .bss section in /tmp/ccwB4Jmm.o
foo.cc:(.text.startup+0xc7): relocation truncated to fit: R_X86_64_PC32 against symbol `a' defined in .bss section in /tmp/ccwB4Jmm.o
/tmp/ccwB4Jmm.o: In function `_GLOBAL__sub_I_a':
foo.cc:(.text.startup+0x1a3): relocation truncated to fit: R_X86_64_PC32 against `.bss'
foo.cc:(.text.startup+0x1c1): relocation truncated to fit: R_X86_64_PC32 against `.bss'
collect2: error: ld returned 1 exit status