twelf.c

十二小球问题：十二个小球中有一个次品

#include "time.h"
#include "math.h"
#include "stdio.h"
#include "stdlib.h"
#include "conio.h"



void judge(void)
{
	int a[12],i,j,k,weight,pos;
	clrscr();
	j=random(2);
   j=j*2;
	k=random(12);

	for(i=0;i<12;i++)
	{
		if (i==k)
		{
			a[i]=j;
			textcolor(RED);
		}
		else
		{
			a[i]=1;
			textcolor(LIGHTGRAY);
		}

		cprintf("a[%d]is : %d \n\r",i,a[i]);
	}
	//to make an aray in which there is a bigger or smaller element
	// than any other one,and this one is possible in any position



	////////////////////////////////////////////////////////////////////
   //to judeg which one is bigger or smaller
	weight=0;pos=0;

	if((a[0]+a[1]+a[2]+a[3])==(a[4]+a[5]+a[6]+a[7]))
	{
		if((a[0]+a[1]+a[2])==(a[8]+a[9]+a[10]))
		{
			pos=11;
			if(a[0]>a[11])
				weight=0;    //a[11] smaller
			else
				weight=2;    //a[11] bigger

		}
		else if((a[0]+a[1]+a[2])>(a[8]+a[9]+a[10]))
		{
			weight=0;
			if(a[8]==a[9])
				pos=10;      //a[10] smaller

			else if(a[8]>a[9])
				pos=9;       //a[9] smaller
			else
				pos=8;       //a[8] smaller

		}
		else
		{
			weight=2;
			if(a[8]==a[9])
				pos=10;      //a[10] bigger

			else if(a[8]>a[9])
				pos=8;       //a[8] bigger
			else
				pos=9;       //a[9] bigger



		}

	}
	else if((a[0]+a[1]+a[2]+a[3])>(a[4]+a[5]+a[6]+a[7]))
	{
		if((a[0]+a[1]+a[7])>(a[2]+a[3]+a[4]))
		{
			if(a[0]==a[1])
			{
				weight=0;
				pos=4;       //a[4] smaller
			}
			else if(a[0]>a[1])
			{
				weight=2;
				pos=0;       //a[0] bigger
			}
			else
			{
				weight=2;
				pos=1;       //a[1] bigger
			}
		}
		else if((a[0]+a[1]+a[7])<(a[2]+a[3]+a[4]))
		{
			if(a[2]==a[3])
			{
				weight=0;
				pos=7;       //a[7] smaller
			}
			else if(a[2]>a[3])
			{
				weight=2;
				pos=2;       //a[2] bigger
			}
			else
			{
				weight=2;
				pos=3;       //a[3] bigger
			}
		}
		else
		{
			weight=0;
			if(a[5]>a[6])
				pos=6;       //a[6] smaller
			else pos=5;     //a[5] smaller
		}


	}
	else
	{
		if((a[4]+a[5]+a[3])>(a[6]+a[7]+a[0]))
		{
			if(a[4]==a[5])
			{
				weight=0;
				pos=0;       //a[0] smaller
			}
			else if(a[4]>a[5])
			{
				weight=2;
				pos=4;       //a[4] bigger
			}
			else
			{
				weight=2;
				pos=5;       //a[5] bigger
			}
		}
		else if((a[4]+a[5]+a[3])<(a[6]+a[7]+a[0]))
		{
			if(a[6]==a[7])
			{
				weight=0;
				pos=3;       //a[3] smaller
			}
			else if(a[6]>a[7])
			{
				weight=2;
				pos=6;       //a[6] bigger
			}
			else
			{
				weight=2;
				pos=7;       //a[7] bigger
			}
		}
		else
		{
			weight=0;
			if(a[1]>a[2])
				pos=2;       //a[2] smaller
			else pos=1;     //a[1] smaller
		}


	}


	///////////////////////////////////////////////////////////////////
	//to judge which one is bigger or smaller

	textcolor(LIGHTGRAY);
	cprintf("The different one is ");
	textcolor(CYAN);
	cprintf("a[%d]",pos);
	textcolor(LIGHTGRAY);
	cprintf(",and it's ");
	textcolor(MAGENTA);
	if(weight==0)
	{
		cprintf("smaller ");
	}
	else
	{
		cprintf("bigger ");
	}
	textcolor(LIGHTGRAY);
	cprintf("than others\n\r\n\r");


}

void main()
{
	char m;
	clrscr();
	randomize();
	for(;m!='n'&&m!='N';)
	{
		judge();
		printf("Press 'N' to exit and others to run another time\n\n");
		m=getch();

	}

}