Compilare: user.cpp: In function ‘int main()’: user.cpp:91:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d%d", &n, &m, &k); ^ user.cpp:92:57: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int i = 1 ; i <= k ; ++i) fscanf(in,"%d", v + i); ^ user.cpp:95:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d%d", &x, &y, &c); ^