07/11/18 07:54:51
#include <iostream>
using namespace std;
main(){
unsigned int n;
for(n=60;n<64;n++)
cout<<n<<" "<<(unsigned int)(((1<<n)-2)>>(n-1))<<endl;
cout<<63<<" "<<(unsigned int) ( ((1<<63)-2) >> 62 );
}
63の値が変わるのはなぜ?
07/11/18 07:54:51
#include <iostream>
using namespace std;
main(){
unsigned int n;
for(n=60;n<64;n++)
cout<<n<<" "<<(unsigned int)(((1<<n)-2)>>(n-1))<<endl;
cout<<63<<" "<<(unsigned int) ( ((1<<63)-2) >> 62 );
}
63の値が変わるのはなぜ?