Compilare: user.cpp: In function ‘int main()’: user.cpp:49:52: warning: unused variable ‘last’ [-Wunused-variable] int n, sc,scurent, smax = -999999999, elem, first, last, maxlast, lastc, firstc, maxfirst; ^ user.cpp:49:67: warning: unused variable ‘lastc’ [-Wunused-variable] int n, sc,scurent, smax = -999999999, elem, first, last, maxlast, lastc, firstc, maxfirst; ^ user.cpp:51:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^ user.cpp:54:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &elem); ^