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C 84 81 7874 Characters
mainr;main(v,r,x){for(scanf("%d",&v),x=v,r=0;v;vx=v;v;v/=2)r=r*2|v&1;puts(r-x?"NO":"YES");}
It does not use any function like string reverse.
C 84 81 78 Characters
main(v,r,x){for(scanf("%d",&v),x=v,r=0;v;v/=2)r=r*2|v&1;puts(r-x?"NO":"YES");}
C 84 81 74 Characters
r;main(v,x){for(scanf("%d",&v),x=v;v;v/=2)r=r*2|v&1;puts(r-x?"NO":"YES");}
C 84 8181 78 Characters
main(v,r,x){for(scanf("%d",&v),x=v,r=0;v;r*=2,r|=v&1,vr=0;v;v/=2);putsr=r*2|v&1;puts(r-x?"NO":"YES");}
C 84 81 Characters
main(v,r,x){for(scanf("%d",&v),x=v,r=0;v;r*=2,r|=v&1,v/=2);puts(r-x?"NO":"YES");}
C 8484 81 Characters
main(v,r,x){for(scanf("%d",&v),x=v,r=0;v;r<<=1r=0;v;r*=2,r|=v&1,v>>=1v/=2){}puts;puts(r-x?"NO":"YES");}
C 84 Characters
main(v,r,x){for(scanf("%d",&v),x=v,r=0;v;r<<=1,r|=v&1,v>>=1){}puts(r-x?"NO":"YES");}
