我这里有个C语言的,是输出所有划分的.
你自己尝试一下改成JAVA的吧.
#include "stdio.h"
void main()
{
int n;
scanf("%d",&n);
if (n == 1)
{
printf("1=1n");
return;
}
if (n == 2)
{
printf("2=1+1n");
return;
}
int *a = new int(n);
int top = 0;
a[0] = n - 1;
a[1] = 1;
top = 2;
int i;
do{
printf("%d=%d",n,a[0]);
for (i = 1; i < top; i++)
{
printf("+%d",a[i]);
}
printf("n");
int s = 0;
do{
s += a[--top];
}while (top >= 0 && a[top] == 1);
if (top == -1)
{
break;
}
int d = a[top] - 1;
if (d == 1)
{
while (s > 0)
{
a[top++] = 1;
s--;
}
}
else
{
do{
a[top++] = d;
s -= d;
}while (s >= d);
if (s != 0)
{
a[top++] = s;
}
}
}while (1);
}