Select Sort Algorithm

//选择排序算法

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

#define max_num		100
#define SWAP(X, Y, TEMP)	((TEMP = X), (X = Y), (Y = TEMP))

int main(int argc, char *argv[])
{
	int list[max_num];
	int i, j, num, min, temp;
	
	printf("Please input number:");
	scanf("%d", &num);
	if (num < 0 || num > max_num) {
		fprintf(stderr, "invalid data\n");
		exit(1);
	}
	for (i = 0; i < num; i++) {
		list[i] = rand() % 1000;
		printf("%d  ", list[i]);
	}
	printf("\n");

	for (i = 0; i < num; i++) {
		min = i;
		for (j = i + 1; j < num; j ++) {
			if (list[j] < list[min])
				min = j;
		}
		SWAP(list[i], list[min], temp);
	}
	
	printf("After select sort result:\n");
	for (i = 0; i < num; i ++)
		printf("%d  ", list[i]);	
	printf("\n");
}