Compilare: user.cpp: In function ‘int main()’: user.cpp:35:48: warning: left operand of comma operator has no effect [-Wunused-value] for(int j=lit[ch[i]-'A'][10000]-1;j>=0,j>=lit[ch[i]-'A'][10000]-6;j--) ^ user.cpp:21:9: warning: unused variable ‘ct’ [-Wunused-variable] int ct; ^ user.cpp:22:9: warning: unused variable ‘pos’ [-Wunused-variable] int pos,pos2,xs; ^ user.cpp:22:13: warning: unused variable ‘pos2’ [-Wunused-variable] int pos,pos2,xs; ^ user.cpp:12:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%c",&ch[1]); ^ user.cpp:16:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%c",&ch[n]); ^