Compilare: user.cpp: In function ‘int main()’: user.cpp:23:19: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[1000002]’ [-Wformat=] fscanf(f,"%s",&s); ^ user.cpp:12:31: warning: unused variable ‘x’ [-Wunused-variable] int st,dr,n,k,t,j,i,nr,nr1,l,x,s1,s2; ^ user.cpp:18:19: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&t); ^ user.cpp:22:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&n,&k); ^ user.cpp:23:20: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s",&s); ^