如何解决C代码中报告的“运行时错误exitcode 6”错误?

i have my code test on an OJ system for several times, and the results keep reporting the error "runtime error exitcode 6" on the specific 3rd and 4th run, one test contains 10 runs. except for these two failed run, others are all correct.i have my code test on an OJ system for several