Compilare: user.cpp: In function ‘int main()’: user.cpp:38:42: warning: too many arguments for format [-Wformat-extra-args] else fprintf(fout ,"2\n" ,cnt); ^ user.cpp:9:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin ,"%d" ,&t); ^ user.cpp:12:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin ,"%d%d" ,&x ,&y); ^