Luckynumbers

Output the lucky numbers of all groups, the three numbers in each group are sorted from small to large, and between groups are sorted by the first number from small to large. If the first number is the same, the second number is sorted from small to large.If the second number is also the same, sorted by the third number from small to large

C++(clang++11) 解法, 执行用时: 5ms, 内存消耗: 376K, 提交时间: 2021-01-22 21:02:52

#include<bits/stdc++.h>
using namespace std;
int a[9]={1,2,3,4,5,6,7,8,9};
int main()
{
	int x,y,z;
	while(next_permutation(a,a+9))
	{
		x=a[0]*100+a[1]*10+a[2];
		y=a[3]*100+a[4]*10+a[5];
		z=a[6]*100+a[7]*10+a[8];
		if(x+y+z==999&&x<y&&y<z)
		printf("%d %d %d\n",x,y,z);
	}
	return 0;
}

Python3 解法, 执行用时: 627ms, 内存消耗: 4656K, 提交时间: 2022-01-01 17:45:29

import itertools
for i in itertools.permutations(map(str,range(1,10)),9):
    r,s,t=map(lambda x:int(''.join(x)),[i[:3],i[3:6],i[6:]])
    if r+s+t==999 and r<s<t:print(r,s,t)

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