porumb1.cpp: In function 'int main()': porumb1.cpp:11: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result porumb1.cpp:7: warning: 'px' may be used uninitialized in this function porumb1.cpp:7: warning: 'u' may be used uninitialized in this function