Compilare: user.cpp: In function ‘int main()’: user.cpp:49:17: warning: unused variable ‘flag’ [-Wunused-variable] int i,t,n,j,flag,rez,pas,w; ^ user.cpp: In function ‘char nextch()’: user.cpp:10:29: 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); ^