C ++嵌套while循环菱形图案的翻译算法 [英] translating algorithm for C++ nested while loop diamond pattern

问题描述

这是我的C ++作业问题：

Here is my homework problem for C++:

以下算法是使用嵌套循环显示菱形图案的问题的解决方案。将下面的算法翻译成C ++程序。生成，运行和测试程序。

The following algorithm is a solution to a problem that uses nested loops to display a diamond pattern. Translate the algorithm below in to a C++ program. Build, run and test the program.

算法解决方案：

开始

Declare numRows as constant integer = 7
Declare maxPlus as constant integer = 7
Declare numSpaces as integer
Declare numPluses as integer
Declare row as integer
Declare space as integer
Declare plus as integer

Set row = 1

Repeat while row >= 1 AND row <= numRows
    Set numPluses = 2 * row - 1
    if(numPluses > maxPlus) then
        Set numPluses = 14 - numPluses
    endif

    Set numSpaces = (maxPlus - numPluses) / 2

    Set space = 1
    Repeat while space >= 1 AND space <= numSpaces
        Display( ' ')
        Set space = space + 1
    End Repeat

    Set plus = 1
    Repeat while plus >= 1 AND plus <= numPluses
        Display( '*')
        Set plus = plus + 1
    End Repeat  

    Set row = row + 1

    Display a new line
End Repeat

停止

我的代码：

   #include <iostream>
   using namespace std;

   int main() {

    const int numRows = 7;
    const int maxPlus = 7;
    int numSpaces;
    int numPluses;
    int row;
    int space;
    int plus;

    row = 1;

    while((row >=1) && (row <= numRows)){
        numPluses = 2 * row - 1;
        if(numPluses > maxPlus){
            numPluses = 14 - numPluses;
        }
        numSpaces = (maxPlus - numPluses)/ 2;
        space = 1;
        while((space >= 1) && (space <= numSpaces)){
           cout << " ";
           space++;
        }
        while((plus >= 1) && (plus <= numPluses)){
            cout << "*";
            plus++;
        }
        row++;
        cout << endl;
    }

    return 0;
    }

我的问题是为什么我没有得到菱形图案？我觉得我正确地翻译了算法，但是得到的只是一堆空白。我看错问题还是编码错误？ C ++代码的屏幕截图

My question is why am I not getting the diamond pattern? I feel like I translated the algorithm correctly, but all I get is a bunch of blank space. Did I read the problem wrong or did I code wrong? screenshot of C++ code

推荐答案

在最后一个while循环之前：

Before the last while loop:

Set plus = 1

您在翻译中错过了它。

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