proiect.cpp: In function 'int main()': proiect.cpp:65: warning: suggest explicit braces to avoid ambiguous 'else' proiect.cpp:53: warning: unused variable 'm1' proiect.cpp:53: warning: unused variable 'm2' proiect.cpp:50: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result proiect.cpp:51: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result proiect.cpp:54: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result proiect.cpp:56: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result proiect.cpp:52: warning: 'a' may be used uninitialized in this function proiect.cpp:52: warning: 'b' may be used uninitialized in this function