分别把三个数字填充到0-9的数组中,然后判断1-9是否都是1。
// Q1053340.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include <stdio.h>
#include <string.h>
int judge(int n)
{
int arr[10];
memset(arr, 0, sizeof(int) * 10);
for (int i = 1; i < 4; i++)
{
int n1 = n * i;
for (int j = 0; j < 3; j++)
{
arr[n1 % 10] = 1;
n1 /= 10;
}
}
for (int i = 1; i < 10; i++)
if (!arr[i]) return 0;
return 1;
}
int main()
{
for (int i = 123; i <= 987; i++)
if (judge(i)) printf("%d %d %d\n", i, i *2, i * 3);
return 0;
}
192 384 576
219 438 657
273 546 819
327 654 981
Press any key to continue . . .