Compilare: user.cpp: In function ‘int main()’: user.cpp:12:22: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[1000005]’ [-Wformat=] fscanf(f,"%s",&ch); ^ user.cpp:10:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&n,&m); ^ user.cpp:12:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s",&ch); ^