Decimal to Hexadecimal Conversion

#include<stdio.h> #include<conio.h> #include<math.h> void main() { long int num; clrscr(); printf("Enter the decimal number : "); scanf("%ld",&num); long int rem[50],i=0,length=0; while(num>0) { rem[i]=num%16; num=num/16; i++; length++; } printf("Hexadecimal number : "); for(i=length-1;i>=0;i--) { switch(rem[i]) { case 10: printf("A"); break; case 11: printf("B"); break; case 12: printf("C"); break; case 13: printf("D"); break; case 14: printf("E"); break; case 15: printf("F"); break; default : printf("%ld",rem[i]); } } getch(); }

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