Compilare: user.cpp: In function ‘int main()’: user.cpp:9:28: warning: variable ‘sp’ set but not used [-Wunused-but-set-variable] char c, chrdr, chrstg, sp; ^ user.cpp:13:21: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d", &n); ^ user.cpp:16:21: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d", &x); ^ user.cpp:27:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d", &x); ^ user.cpp:44:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d", &pos); ^ user.cpp:76:61: warning: ‘chrdr’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fout,"%d %c\n%d %c", capatdr, chrdr,capatstg, chrstg); ^