[問題] 印不出需要的結果= =
( *[1m *[m 為色碼,可以按 Ctrl+V 預覽會顯示的顏色 )
( 未必需要依照此格式,文章條理清楚即可 )
遇到的問題: (題意請描述清楚)
又是基本的質數問題,不過上個版本改進後就印不出來了
希望得到的正確結果:
程式跑出來的錯誤結果:
都是0= =
開發平台: (例: VC++ or gcc/g++ or Dev-C++, Windows or Linux)
Windows Visual Studio 2010 Release Canditate
有問題的code: (請善用置底文標色功能)
// 自動生成質數表(2).cpp : Defines the entry point for the console
application.
//
#include "stdafx.h"
#include "stdlib.h"
#include "math.h"
int _tmain(int argc, _TCHAR* argv[])
{
long long int number = 2;
long long int test = 2;
double max;
long long int integer = 0;
long long int exam = 0;
printf("請輸入一個大於1的數,我們將為你輸出此數以下的所有質數到layout.txt:
");
scanf_s("%lf", &max);
if(max <= 1 || fmod(max,1.00) != 0)
printf("你輸的數字與條件不符\n");
else
while(max >= number)
{
while(number % test != 0&&number >= test*test)
{
test = test + 1;
if(number % test == 0)
{
exam++;
break;
}
}
if(exam == 0)
{
integer++;
printf("第%u個質數是%u\n",integer, number);
}
test = 2;
exam = 0;
number++;
}
system("pause");
return 0;
}
補充說明:
謝謝大家的指導
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