Compilare: user.cpp: In function ‘int main()’: user.cpp:15:10: warning: statement has no effect [-Wunused-value] for(p;p>0;p--){ ^ user.cpp:14:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d",&n,&p,&k); ^ user.cpp:16:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&i,&j); ^