Compilare: user.cpp: In function ‘void solve()’: user.cpp:67:8: warning: statement has no effect [-Wunused-value] for(nr;nr>K;nr--) ^ user.cpp:77:8: warning: statement has no effect [-Wunused-value] for(nr;nr;nr--) ^ user.cpp: In function ‘void citire()’: user.cpp:23:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&N,&K); ^ user.cpp:26:21: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d ",&a); ^