Compilare: user.cpp:24: warning: this decimal constant is unsigned only in ISO C90 user.cpp:29: warning: this decimal constant is unsigned only in ISO C90 user.cpp:35: warning: this decimal constant is unsigned only in ISO C90 user.cpp: In function ‘void rezolva()’: user.cpp:22: warning: comparison between signed and unsigned integer expressions user.cpp:23: warning: comparison between signed and unsigned integer expressions user.cpp:26: warning: comparison between signed and unsigned integer expressions user.cpp:27: warning: comparison between signed and unsigned integer expressions user.cpp:29: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void afis()’: user.cpp:36: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void citire()’: user.cpp:43: warning: comparison between signed and unsigned integer expressions user.cpp:46: warning: comparison between signed and unsigned integer expressions user.cpp:42: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:45: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:47: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘int main()’: user.cpp:56: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:57: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result