Compilare: user.cpp: In function ‘int main()’: user.cpp:22:21: warning: comparisons like ‘X<=Y<=Z’ do not have their mathematical meaning [-Wparentheses] if(a[i].min <=(a[i+1].min)<=a[i].max || a[i].min>=a[i+1].max>=a[i+1].max) ^ user.cpp:22:57: warning: comparisons like ‘X<=Y<=Z’ do not have their mathematical meaning [-Wparentheses] if(a[i].min <=(a[i+1].min)<=a[i].max || a[i].min>=a[i+1].max>=a[i+1].max) ^