C语言程序设计(第4版)苏小红 课后程序参考6.17

用100元人民币兑换10元、5元和1元的纸币(每一种都要有)共50张,请用穷举法编程计算共有几种兑换方案,每种方案各兑换多少张人民币。

参考代码:

#include<stdio.h>
int main()
{
	int ten, five, one,count=0;
	for (ten = 0; ten <= 50; ten++)
	{
		for (five = 0; five <= 50; five++)
		{
			for (one = 0; one <= 50; one++)
			{
				if (five + ten + one == 50 && 10 * ten + 5 * five + one <= 100)
				{
					count++;
					printf("每种方案各兑换的纸币数量为:十元 %d张 五元%d张 一元%d张\n", ten, five, one);
					printf("\n");
				}
			}
		}
	}
	printf("一共有%d种方案。\n", count);
	return 0;
}

参考图片:

 

 

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