证明德摩根定律

#include<iostream>
using namespace std;

int main(){
    unsigned int a ,b;
    for(a=0;a<256;a++){
        for(b=0;b<256;b++){
            if((~(a&b))!=(~a|~b))
                break;
        }
    }
    cout<<a<<" "<<b<<endl;
    return 0;
}