Borderou de evaluare (job #26980)

Compilare: user.cpp: In function ‘void rec(int)’: user.cpp:7:11: warning: unused variable ‘con’ [-Wunused-variable] user.cpp:7:15: warning: unused variable ‘ab’ [-Wunused-variable] user.cpp:7:22: warning: unused variable ‘pp’ [-Wunused-variable] user.cpp: In function ‘int main()’: user.cpp:44:28: warning: format ‘%c’ expects argument of type ‘char*’, but argument 3 has type ‘int*’ [-Wformat] user.cpp:75:20: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] user.cpp:36:28: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:37:30: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:38:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:44:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:47:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:48:8: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:61:44: warning: array subscript is above array bounds [-Warray-bounds] /tmp/cc2QEfIz.o: In function `main': user.cpp:(.text.startup+0xeb): warning: the `gets' function is dangerous and should not be used.