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<blockquote data-quote="madurax86" data-source="post: 8017029" data-attributes="member: 1293"><p>well if there's one thing I can't stand thats algos lol here goes,</p><p>[code]</p><p>#include<stdio.h></p><p>#include<stdlib.h></p><p>inline void addhex(char *s, int num){</p><p> switch (num){</p><p> case 15: { *s = 'F'; break; }</p><p> case 14: { *s = 'E'; break; }</p><p> case 13: { *s = 'D'; break; }</p><p> case 12: { *s = 'C'; break; }</p><p> case 11: { *s = 'B'; break; }</p><p> case 10: { *s = 'A'; break; }</p><p> default: { *s = (char)48+num; break; }</p><p> }</p><p>}</p><p>int main()</p><p>{</p><p> unsigned long long int num, pnum, pos=0;</p><p> char out[256]="";</p><p> char out2[256]="";</p><p> </p><p> scanf("%lld", &num);</p><p> </p><p> while (num>16){ </p><p> pnum=num;</p><p> num=num>>4;</p><p> addhex( &out[pos], pnum-(num<<4));</p><p> pos++;</p><p> }</p><p> addhex( &out[pos], num);</p><p> for (num=0;num<=pos;num++) out2[num] = out[pos - num];</p><p> printf("0x%s ", out2);</p><p> return 0;</p><p>}</p><p>[/code]</p><p></p><p>for those who are interested, heres the timings for decimal 999999999999 on a 2.0 GHz</p><p>[code]</p><p>999999999999 </p><p>0xE8D4A50FFF </p><p>real 0m0.001s</p><p>user 0m0.000s</p><p>sys 0m0.004s</p><p>[/code]</p><p></p><p>anyone can edit the code and make improvements, <img src="/styles/default/xenforo/smilies/default/D.gif" class="smilie" loading="lazy" alt=":D" title="Big grin :D" data-shortname=":D" /></p></blockquote><p></p>
[QUOTE="madurax86, post: 8017029, member: 1293"] well if there's one thing I can't stand thats algos lol here goes, [code] #include<stdio.h> #include<stdlib.h> inline void addhex(char *s, int num){ switch (num){ case 15: { *s = 'F'; break; } case 14: { *s = 'E'; break; } case 13: { *s = 'D'; break; } case 12: { *s = 'C'; break; } case 11: { *s = 'B'; break; } case 10: { *s = 'A'; break; } default: { *s = (char)48+num; break; } } } int main() { unsigned long long int num, pnum, pos=0; char out[256]=""; char out2[256]=""; scanf("%lld", &num); while (num>16){ pnum=num; num=num>>4; addhex( &out[pos], pnum-(num<<4)); pos++; } addhex( &out[pos], num); for (num=0;num<=pos;num++) out2[num] = out[pos - num]; printf("0x%s ", out2); return 0; } [/code] for those who are interested, heres the timings for decimal 999999999999 on a 2.0 GHz [code] 999999999999 0xE8D4A50FFF real 0m0.001s user 0m0.000s sys 0m0.004s [/code] anyone can edit the code and make improvements, :D [/QUOTE]
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