Question

c语言程序设计 题目一道，求解

现在有12只外表、颜色、大小均相同的小球，这12只球中有一个是坏球，但不知这个坏球是中还是轻，给出一天平，要求进行三次称重称出坏球，并知道其实轻还是重。

编程实现上述过程。
我要程序啊。。c语言的，谢谢，只要程序即可
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注意：如果只是数学解题，100%不采纳，必须有程序，关键是C语言程序源码，谢谢！！！！！！！

Answer 1

#include<stdio.h>
int x,y,z,num,i,a[13]={0,0,0,0,0,0,0,0,0,0,0,0,0};
void main()
{
printf("The number of the ball:");
scanf("%d",&num);
printf("light is -1,heavy is 1:");
scanf("%d",&i);
a[num]=i;
while((num<=12)&&(num>=1))
{
x=a[1]+a[2]+a[3]+a[4];
y=a[5]+a[6]+a[7]+a[8];
z=a[9]+a[10]+a[11]+a[12];
if(x==y)
{
x=a[9]+a[10]+a[11];
y=a[1]+a[2]+a[3];
if(x==y)
{
if(a[12]>a[1])
printf("The number of 12 ball is heavy\n");
else
printf("The number of 12 ball is light\n");
}
if(x>y)
{
if(a[9]==a[10])
printf("The number of 11 ball is heavy\n");
if(a[9]>a[10])
printf("The number of 9 ball is heavy\n");
if(a[9]<a[10])
printf("The number of 10 ball is heavy\n");
}
if(x<y)
{
if(a[9]==a[10])
printf("The number of 11 ball is light\n");
if(a[9]>a[10])
printf("The number of 10 ball is light\n");
if(a[9]<a[10])
printf("The number of 9 ball is light\n");
}
}
if(x>y)
{
x=a[4]+a[5]+a[6];
y=a[7]+a[8]+a[9];
if(x==y)
{
if(a[1]==a[2])
printf("The number of 3 ball is heavy\n");
if(a[1]>a[2])
printf("The number of 1 ball is heavy\n");
if(a[1]<a[2])
printf("The number of 2 ball is heavy\n");
}
if(x>y)
{
if(a[7]==a[8])
printf("The number of 4 ball is heavy\n");
if(a[7]<a[8])
printf("The number of 7 ball is light\n");
if(a[7]>a[8])
printf("The number of 8 ball is light\n");
}
if(x<y)
{
if(a[5]<a[6])
printf("The number of 5 ball is light\n");
if(a[5]>a[6])
printf("The number of 6 ball is light\n");
}
}
if(x<y)
{
x=a[4]+a[5]+a[6];
y=a[7]+a[8]+a[9];
if(x==y)
{
if(a[1]==a[2])
printf("The number of 3 ball is light\n");
if(a[1]>a[2])
printf("The number of 2 ball is light\n");
if(a[1]<a[2])
printf("The number of 1 ball is light\n");
}
if(x<y)
{
if(a[7]==a[8])
printf("The number of 4 ball is light\n");
if(a[7]>a[8])
printf("The number of 7 ball is heavy\n");
if(a[7]<a[8])
printf("The number of 8 ball is heavy\n");
}
if(x>y)
if(a[5]<a[6])
printf("The number of 6 ball is heavy\n");
if(a[5]>a[6])
printf("The number of 5 ball is heavy\n");
}
printf("The number of the ball:");
scanf("%d",&num);
printf("light is -1,heavy is 1:");
scanf("%d",&i);
a[num]=i;
}
}