Compilare: user.cpp: In function ‘int main()’: user.cpp:38:21: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[2502]’ [-Wformat=] fscanf(f,"%s",&s); ^ user.cpp: In function ‘int cmp(coord, coord)’: user.cpp:35:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:38:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s",&s); ^