帮我用C语言的栈做一个进制转换器

好的，以下是使用C语言栈实现进制转换的代码：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define MAX_STACK_SIZE 100

typedef struct {
    int top;
    int data[MAX_STACK_SIZE];
} Stack;

void initStack(Stack *s) {
    s->top = -1;
}

int isEmpty(Stack *s) {
    return s->top == -1;
}

int isFull(Stack *s) {
    return s->top == MAX_STACK_SIZE - 1;
}

void push(Stack *s, int x) {
    if (isFull(s)) {
        printf("Stack is full.\n");
        exit(1);
    }
    s->data[++s->top] = x;
}

int pop(Stack *s) {
    if (isEmpty(s)) {
        printf("Stack is empty.\n");
        exit(1);
    }
    return s->data[s->top--];
}

int convert(char c) {
    if (c >= '0' && c <= '9') {
        return c - '0';
    } else if (c >= 'a' && c <= 'f') {
        return c - 'a' + 10;
    } else if (c >= 'A' && c <= 'F') {
        return c - 'A' + 10;
    } else {
        printf("Invalid character: %c\n", c);
        exit(1);
    }
}

char convertBack(int n) {
    if (n >= 0 && n <= 9) {
        return n + '0';
    } else if (n >= 10 && n <= 15) {
        return n - 10 + 'a';
    } else {
        printf("Invalid number: %d\n", n);
        exit(1);
    }
}

int main() {
    Stack s;
    initStack(&s);

    char input[100];
    int from, to;

    printf("Enter a number: ");
    scanf("%s", input);
    printf("Enter the base of the number: ");
    scanf("%d", &from);
    printf("Enter the base to convert to: ");
    scanf("%d", &to);

    int len = strlen(input);
    int i;
    for (i = 0; i < len; i++) {
        int n = convert(input[i]);
        push(&s, n);
    }

    int result = 0;
    int power = 1;
    while (!isEmpty(&s)) {
        int n = pop(&s);
        result += n * power;
        power *= from;
    }

    char output[100];
    int j = 0;
    while (result > 0) {
        int n = result % to;
        output[j++] = convertBack(n);
        result /= to;
    }
    output[j] = '\0';

    printf("Result: %s\n", strrev(output));

    return 0;
}

这个程序可以将一个任意进制的数转换为另一个任意进制的数。用户需要输入要转换的数、原始进制和目标进制。程序会将输入的数转换为十进制，然后再将十进制数转换为目标进制。