Borderou de evaluare (job #297394)

Compilare: user.cpp: In function 'int main()': user.cpp:88:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:89:37: warning: array subscript has type 'char' [-Wchar-subscripts] user.cpp:96:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:103:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:77:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:78:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:85:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:86:12: warning: ignoring return value of 'char* gets(char*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp: In function 'int decrypt(char)': user.cpp:69:24: warning: 'po' may be used uninitialized in this function [-Wuninitialized] /tmp/ccgVvraq.o: In function `main': user.cpp:(.text.startup+0x91): warning: the `gets' function is dangerous and should not be used.