Compilare: user.cpp: In function ‘int main()’: user.cpp:16:25: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[102]’ [-Wformat=] fscanf(f,"%s",&s); ^ user.cpp:10:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,m,n,l,c; ^ user.cpp:10:13: warning: unused variable ‘m’ [-Wunused-variable] int i,j,m,n,l,c; ^ user.cpp:13:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.cpp:16:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s",&s); ^