好兄弟，这玩意怎么证明的知道吗？我菜狗只能用递归

very good kata!!!

it means your code is wrong:

• it has undefined behavior if either full_text or search_text are empty
• it is incorrect in other cases, e.g. it returns 0 for "baa", "aa", false
• (it is extremely inefficient to call strlen() in a loop)

should_handle_empty_strings
Test Crashed
Caught unexpected signal: SIGSEGV (11). Invalid memory access.c

what does the mean???

should_pass_some_random_tests
search_substr("daeddbecdacbaddadcbecbbceddacedbacedbaaebaaddadddeeccbabbacdecbebdacaaddcaccbcdbecdbddabdccabaeedecbccebddebbccaeadabdbbcabdbddbcccbbcabaecddbaeceeacddcdacbdadceabdebeccccaddbccbcbbddbdbdddbcadddabceabbcaeecbccadaabadeaccceddedbbccdaeaadedaddaaecacdabbacbdbeeaddaddaadbeeaebaaddacadaabbaeccecabcabdeaedadbceacbedeeaccdceaddcaadddedeeadadeaaabababeebddbbdabeaaeededeceedbbadebaacadaabcebddcdcdedcaadbabcaebccdecbaccebbcbadbdeececcaceedadccdbeadeecaccecaabeeaabdceebeebbcaedcdcdcabeedbbbcaececeabdeceaeebdbbcaecdabbecabaeebdabbdaddcdeaddcaabdddbbcbbebcacaaabecceeadbaddadbabacaeaddbbdadbacccebdbbebaadabbedaedacbdacdbaaacebaecbaadaaecbdcbeabbebedecdbecaacbeacbecbabadbb", "baa", false) should return 7, actual: 3

The return is 7 ?????,when the " overlap" is 'false'; but I use that 'overlap' eque to true, then i got result 7.

This usually means your code performs division by 0, but its difficult to tell without seeing your code.

Test Crashed
Caught unexpected signal: SIGFPE (8). Erroneous arithmetic operation.
allways this error; My code running fine in VSCode/GCC.

Is these something wrong?, C language, No 'm' or 'M' in the test string.

There is an 'M' in the string.

Is these something wrong?, C language, No 'm' or 'M' in the test string.
Random_Tests
should_pass_all_the_tests_provided
"pzOBAiHPDQUg8EL6ilaIufonTFbYjXSFRKwkt:ZcVPsSgxG#MId"

Submitted false

Expected true

That generally means you tried accessing something out of bounds.

It is C implementation

Anyone know why this error?

Test Crashed
Caught unexpected signal: SIGSEGV (11). Invalid memory access.

太牛逼了