c数据结构学习随笔

#include <stdio.h>
#include <stdlib.h>
#include "PublicDS.h"
#include<Windows.h>
 
typedef struct stack{
	int top = -1;
	int maxSize = 100;
	//用于存放二进制位
	int *data = (int *)malloc(100 * sizeof(int));
	int pop(){
		if (!isEmpty())
			return data[top--];
 
	}
	void push(int n){
		if (!isFull())
			data[++top] = n;
	}
	bool isEmpty(){
		return top < 0;
	}
	bool isFull(){
		return top >= maxSize;
	}
} stack;
int ReadData(FILE *, int *&);
void WriteData(FILE *, int *, int);
 
void main(){
	int *data;
	FILE *fin, *fout;
	fin = fopen("input.txt", "r");
	fout = fopen("output.txt", "w");
	MALLOC(data, 100 * sizeof(int), int *);
	int tmp = ReadData(fin, data);
	WriteData(fout, data, tmp);
	FREE(data);
	fclose(fin);
	fclose(fout);
	system("pause");
}
int ReadData(FILE *fin, int * &data){
	int i = 1;
	int n = 0;
	int tmp;
	while (!feof(fin)){
		fscanf(fin, "%d", &tmp);
		if (tmp != -1){
			data[n++] = tmp;
//			printf("%d\n", tmp);
			if (n % 100 == 0){
				int *p = (int *)realloc(data, 100 * (++i)*sizeof(int));
				if (!p){
					printf("error");
					MessageBox(GetActiveWindow(), L"1", L"2", MB_OK);
				}
				else{
					data = p;
					//	free(p);
					//	p = NULL;
				}
			}
		}
	}
 
	return n;
}
void WriteData(FILE *fout, int *data, int n)
{
 
	for (int i = 0; i < n; i++)
	{
		fprintf(fout, "%8d--->", data[i]);
		stack sc;
		while (data[i] / 2 != 0)
		{
			sc.push(data[i] % 2);
			data[i] /= 2;
		}
		sc.push(data[i]);
		for (int j = 0; j <= sc.top;){
			fprintf(fout, "%d", sc.pop());
		}
		fprintf(fout, "\n");
	}
	//	printf("%d\n", n);
}