Compilare: user.cpp: In function ‘void solve()’: user.cpp:25:96: warning: operation on ‘i’ may be undefined [-Wsequence-point] for(i=1,Sum=0;i<=N;V[i]=(i>((N+1)>>1)?V[N-i+1]:V[i]),Sum+=V[i],B[i]=1,C[V[i]]=1,Dif[V[i]]=i++); ^ user.cpp:45:35: warning: operation on ‘i’ may be undefined [-Wsequence-point] for(i=1;i<=N;A[1][i]=B[i++]); ^ user.cpp:48:60: warning: operation on ‘j’ may be undefined [-Wsequence-point] for(j=1;j<=N-i+1;A[i][j]=A[i-1][j]+A[i-1][j+++1]); ^ user.cpp:48:60: warning: operation on ‘j’ may be undefined [-Wsequence-point]