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Message: <blockquote data-quote="Enigma_1" data-source="post: 8017663" data-attributes="member: 78173">[CODE]#include <stdio.h>#include <stdlib.h>int number;char* HexNumber =NULL;int main(){    printf("Please enter an integer :");    scanf("%d",&number);    HexNumber =(char*)malloc(50);    sprintf(HexNumber,"%x",number);    printf("1st method : hex representation is 0x%s\n",HexNumber);    printf("2nd method : hex representation is 0x%p\n",number);    printf("3rd method : hex representation is 0x%x\n",number);    system("pause");    return 0;}[/CODE][CODE]#include <stdio.h>#include <stdlib.h>#include <string.h>unsigned int number,modval,Divval,index=0;char* HexNumber =NULL;char* tem;int main(){    printf("Please enter an integer :");    scanf("%d",&number);    HexNumber =(char*)malloc(50);    tem =(char*)malloc(3);    modval = number%16;    Divval = (int)number/16;    if(Divval<16)    {        sprintf(tem,"%d%d",Divval,modval);        strcpy(HexNumber,tem);        printf("Hex value is :%s\n",HexNumber);        system("pause");        exit(0);    }    else    {        sprintf(tem,"%d",modval);        strcpy(HexNumber,tem);        HexNumber = HexNumber+1;        index++;    }    while(Divval>16)    {        modval = Divval%16;        switch(modval)        {        case 10:            strcpy(HexNumber,"A");            break;        case 11:            strcpy(HexNumber,"B");            break;        case 12:            strcpy(HexNumber,"C");            break;        case 13:            strcpy(HexNumber,"D");            break;        case 14:            strcpy(HexNumber,"E");            break;        case 15:            strcpy(HexNumber,"F");            break;        default:            sprintf(tem,"%d",modval);            strcpy(HexNumber,tem);            break;        }        HexNumber = HexNumber+1;        Divval = (int)Divval/16;        index++;    }    sprintf(tem,"%d",Divval);    strcpy(HexNumber,tem);    printf("The Hex value is 0x");    while(strlen(HexNumber)!=(index+2))    {        printf("%c",HexNumber[0]);        HexNumber--;    }    printf("\n");    system("pause");    return 0;}[/CODE]here are my solutions.<img src="/styles/default/xenforo/smilies/default/D.gif"  class="smilie" loading="lazy" alt=":D" title="Big grin    :D" data-shortname=":D" /><img src="/styles/default/xenforo/smilies/default/D.gif"  class="smilie" loading="lazy" alt=":D" title="Big grin    :D" data-shortname=":D" /></blockquote>

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