Compilare: user.cpp: In function ‘int main()’: user.cpp:66: warning: format ‘%d’ expects type ‘int’, but argument 3 has type ‘double’ user.cpp:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘int comp(const void*, const void*)’: user.cpp:21: warning: control reaches end of non-void function user.cpp: In function ‘int main()’: user.cpp:26: warning: ‘j’ may be used uninitialized in this function user.cpp:28: warning: ‘SUM’ may be used uninitialized in this function