pascal:
C/C++:
fpc由于一直没把内存耗完,所以一直没停下来,倒是把系统弄得很慢。
g++把2G内存耗完后就爆了,耗时23s
运行着g++时:
$ free -m
total used free shared buffers cached
Mem: 2023 1975 48 0 1 14
-/+ buffers/cache: 1958 64
Swap: 4102 164 3937
$ time g++ test1.cpp
cc1plus: out of memory allocating 536870912 bytes after a total of 2060288 bytes
real 0m23.594s
user 0m12.542s
sys 0m3.652s
$ time fpc test.pas
Free Pascal Compiler version 2.2.4 [2009/03/28] for i386
Copyright (c) 1993-2008 by Florian Klaempfl
Target OS: Linux for i386
Compiling test.pas
Fatal: Compilation aborted
real 3m36.956s
user 0m0.000s
sys 0m0.034s
这些代码看似无聊,却对OJ系统的安全构成巨大威胁。。 看来要限制编译时间才行。
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