C的实际问题-跳水比赛

版权声明：Zhining https://blog.csdn.net/weixin_43214609/article/details/83311387

5位运动员参加了10米台跳水比赛，有人让他们预测比赛结果 
A选手说：B第二，我第三； 
B选手说：我第二，E第四； 
C选手说：我第一，D第二； 
D选手说：C最后，我第三； 
E选手说：我第四，A第一； 
比赛结束后，每位选手都说对了一半，请编程确定比赛的名次。 

int main()
{
	int a, b, c, d, e;
	for (a = 0; a < 5; a++)
	{
		for (b = 0; b < 5; b++)
		{
			for (c = 0; c < 5; c++)
			{
				for (d = 0; d < 5; d++)
				{
					for (e = 0; e < 5; e++)
					{
						if ((b == 2) + (a == 3) == 1
							&& (b == 2) + (e == 4) == 1
							&& (c == 1) + (d == 2) == 1
							&& (c == 5) + (d == 3) == 1
							&& (e == 4) + (a == 1) == 1)
						{
							if (a + b + c + d + e == 15 && a*b*c*d*e == 120)
							{
								printf("a = %d,b = %d, c = %d, d = %d, e = %d\n", a, b, c, d, e);
							}
						}
					}
				}
			}
		}

	}
	system("pause");
	return 0;

}

日本某地发生了一件谋杀案，警察通过排查确定杀人凶手必为4个 
嫌疑犯的一个。以下为4个嫌疑犯的供词。 
A说：不是我。 
B说：是C。 
C说：是D。 
D说：C在胡说 
已知3个人说了真话，1个人说的是假话。 
现在请根据这些信息，写一个程序来确定到底谁是凶手。 

int main() 
{
	int a, b, c, d;
	for (a = 0; a < 2; a++)
		for (b = 0; b < 2;b++)
			for (c = 0; c < 2; c++)
				for (d = 0; d < 2; d++)
				{
					if ((a == 0) + (c == 1) + (d == 1) + (d == 0) == 3)
					{
						if (a + b + c + d == 1)
						{
							printf("1表示凶手！\n");
							printf("a=%d, b=%d, c=%d, d=%d\n", a, b, c, d);
						}
					}
				}
	system("pause");
	return 0;
}

在屏幕上打印杨辉三角。 

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>

int main()
{
	int i, j, n = 0, a[17][17] = { 0 };

	while (n<1 || n>16)

	{
		printf("请输入杨辉三角形的行数:");

		scanf("%d", &n);

	}

	for (i = 0; i<n; i++)

		a[i][0] = 1; /*第一列全置为一*/

	for (i = 1; i<n; i++)

		for (j = 1; j <= i; j++)

			a[i][j] = a[i - 1][j - 1] + a[i - 1][j];/*每个数是上面两数之和*/


	for (i = 0; i<n; i++) /*输出杨辉三角*/

	{
		for (j = 0; j <= i; j++)

			printf("%5d", a[i][j]);

		printf("\n");

	}
	system("pause");
	return 0;
}