Compilare: user.cpp: In function ‘int main()’: user.cpp:34:14: warning: unused variable ‘j’ [-Wunused-variable] int n,q,i,j,x,k,rez,pas; ^ user.cpp:34:20: warning: unused variable ‘rez’ [-Wunused-variable] int n,q,i,j,x,k,rez,pas; ^ user.cpp:34:24: warning: unused variable ‘pas’ [-Wunused-variable] int n,q,i,j,x,k,rez,pas; ^ user.cpp:35:14: warning: unused variable ‘min’ [-Wunused-variable] long long min,d,l; ^ user.cpp: In function ‘char nextch()’: user.cpp:10:31: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buf,1,MAXBUF,fi); ^