C语言,计算排列数Amn, 急 不要Result之类的

2025-03-04 21:46:17
推荐回答(1个)
回答1:

#include

int a[5];
int len1,len2,len3;

void input(int len1,int len2,int len3)
{
printf("%d %d %d\n",a[len1],a[len2],a[len3]);
}

void solve(int len1,int len2,int len3)
{
input(len1,len2,len3);
if(len1==2) return;
if(len3<4) len3++;
else if(len2<3)
{
len2++;
len3=len2+1;
}
else if(len1<2)
{
len1++;
len2=len1+1;
len3=len2+1;
}
solve(len1,len2,len3);
}

void main()
{
int i;
for(i=0;i<5;i++) a[i]=i+1;
printf("所构成组合是:\n");
solve(0,1,2);
return ;
}