Compilare: user.cpp: In function ‘int main()’: user.cpp:31:15: warning: variable ‘last’ set but not used [-Wunused-but-set-variable] int i, j, last = 0; ^ user.cpp:44:17: warning: variable ‘bun1’ set but not used [-Wunused-but-set-variable] int c1, c2, bun1, bun2; ^ user.cpp:44:23: warning: variable ‘bun2’ set but not used [-Wunused-but-set-variable] int c1, c2, bun1, bun2; ^ user.cpp:45:53: warning: variable ‘maxlast’ set but not used [-Wunused-but-set-variable] int sc,scurent, smax = -999999999, elem, first, maxlast, lastc, firstc, maxfirst; ^ user.cpp:45:77: warning: variable ‘maxfirst’ set but not used [-Wunused-but-set-variable] int sc,scurent, smax = -999999999, elem, first, maxlast, lastc, firstc, maxfirst; ^ user.cpp: In function ‘char get()’: user.cpp:8:51: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(pos == BUF)fread(buf, 1, BUF, fin), pos = 0; ^