🔄📚Intermediate

Decimal to Hexadecimal Conversion

Convert decimal to hex

Convert decimal to hexadecimal by repeatedly dividing by 16. Hex digits: 0-9 and A-F (10-15).

Program Code

decimal_hex.c

1#include <stdio.h>
2
3int main() {
4    int decimal;
5    char hex[32];
6    int i = 0;
7    
8    printf("Enter a decimal number: ");
9    scanf("%d", &decimal);
10    
11    int original = decimal;
12    
13    while (decimal > 0) {
14        int remainder = decimal % 16;
15        if (remainder < 10)
16            hex[i] = remainder + '0';
17        else
18            hex[i] = remainder - 10 + 'A';
19        decimal /= 16;
20        i++;
21    }
22    
23    printf("Hexadecimal of %d: ", original);
24    for (int j = i - 1; j >= 0; j--) {
25        printf("%c", hex[j]);
26    }
27    printf("\n");
28    
29    // Using printf format specifier
30    printf("Using %%X: %X\n", original);
31    
32    return 0;
33}