Compilare: user.cpp: In function ‘void citire()’: user.cpp:12: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:13: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result user.cpp:16: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result user.cpp: In function ‘void rezolvare()’: user.cpp:44: warning: array subscript has type ‘char’ user.cpp:45: warning: array subscript has type ‘char’ user.cpp:55: warning: array subscript has type ‘char’ user.cpp:63: warning: array subscript has type ‘char’ user.cpp:65: warning: array subscript has type ‘char’ user.cpp:66: warning: array subscript has type ‘char’ user.cpp:39: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:50: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘int main()’: user.cpp:75: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:76: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result In file included from /usr/include/stdio.h:910, from user.cpp:1: In function ‘char* gets(char*)’, inlined from ‘void citire()’ at user.cpp:16: /usr/include/bits/stdio2.h:230: warning: call to ‘__gets_warn’ declared with attribute warning: please use fgets or getline instead, gets can't specify buffer size /tmp/ccQqIcFx.o: In function `citire()': user.cpp:(.text+0x3f0): warning: the `gets' function is dangerous and should not be used. user.cpp:(.text+0x3c3): warning: the `gets' function is dangerous and should not be used.