#ifdefine __cplusplus #include <iostream.h> #else #include <stdio.h> #include <stdlib.h> #endif #define GET1(x) ((x)%10) #define GET10(x) (((x)%100)/10) #define GET100(x) ((x) / 100) #define CONDITION1(x) ((GET1(x) + GET10(x) + GET100(x)) % 3 == 0) #define CONDITION2(x) ((GET1(x) != GET10(x)) && (GET1(x) != GET100(x)) && (GET10(x) != GET100(x)) )

void main() { for(int iCount = 100, number = 0; iCount <= 995; iCount += 5) { if( (CONDITION1(iCount)) && (CONDITION2(iCount)) ) { number++; #ifdefine __cplusplus cout << iCount << endl; #else printf("%d\n", iCount); } } #ifdefine __cplusplus cout << "Total Number is:" << number << endl; #else printf("Total Number is:%d\n", number); #endif }

[此贴子已经被作者于2004-09-25 11:42:49编辑过]

unfinished?

#include<iostream.h>

void main() { int digit1,digit10,digit100; int count=0; for(int n=105; n<=975; n+=5) { digit1 = n%100%10; digit10 = n%100/10; digit100 = n/100;

if(digit1==digit10||digit10==digit100||digit1==digit100) continue; else { if(n%5!=0) continue; else if((digit1+digit10+digit100)%3==0) { cout<<n<<endl; count++; } } } cout<<"there are "<<count<<" numbers match."<<endl; }

还有更好的算法！

[此贴子已经被作者于2004-09-25 11:59:25编辑过]

再优化了一下，大家对比上一楼的我的算法有什么不同。

#include<iostream.h>

void main() { int digit1,digit10,digit100; int count=0; for(int n=105; n<=975; n+=5) { digit1 = n%100%10; digit10 = n%100/10; digit100 = n/100;

if(digit10==digit100 && digit1==0) { n+=5; continue; }

if(digit1==digit10||digit1==digit100) continue;

if((digit1+digit10+digit100)%3==0) { cout<<n<<endl; count++; } } cout<<"there are "<<count<<" numbers match."<<endl; }

哪位高手可以再来个更优化的算法？

11楼的，i 服了u！不过好像有1个错误。

[此贴子已经被作者于2004-09-25 12:12:55编辑过]

没错