#include <stdio.h>
int main(void) {
// your code goes here
int a[10]={1,2,4,8,16,32,64,128,256,512};
int i,x;
for(i=9;0>=i;i--){
if(x>=a[i]){
x=x-a[i];
}
}
return 0;
}
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