Compilare: user.cpp: In function ‘int main()’: user.cpp:20:25: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[100000]’ [-Wformat=] fscanf(f,"%s",&b); ^ user.cpp:9:14: warning: unused variable ‘g’ [-Wunused-variable] FILE *f,*g; ^ user.cpp:16:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&t); ^ user.cpp:20:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s",&b); ^