Borderou de evaluare (job #263667)

Compilare: user.cpp: In function ‘void codificare(char*)’: user.cpp:20:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp: In function ‘char* decodificare(char*, char*)’: user.cpp:33:13: warning: address of local variable ‘s’ returned [enabled by default] user.cpp:43:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:41:14: warning: address of local variable ‘s’ returned [enabled by default] user.cpp: In function ‘int main()’: user.cpp:57:18: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[4100]’ [-Wformat] user.cpp:65:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:53:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:54:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:55:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:56:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:57:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]