换分币

#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
main()
{
	int x, y, z, count = 1;
	printf("可能的兑换方法如下:\n");
	for (x = 0; x <= 50; x += 10)/*x为1元硬币钱数,其取值为0,10,20,30,40,50*/
		for (y = 0; y <= 50 - x; y += 5)
			/*y为5角硬币钱数，其取值为0，5,10，15, 20,25,30,35,40，45, 50*/
			for (z = 0; z <= 50 - x - y;z++)
				/*z为1角硬币钱数,其取值为0，1...50*/
				if (x + y + z == 50)
					printf(count % 3?"%2d: 10*%d+5*%d+1*%d\t":"%2d:10*%d+5*%d+1*%d\n", count++,x/10, y/5,z);
}