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  • 打印回环矩阵

    打印

    void PrintSpiralArray(int n)
    {
        int * * allbit = new int* [n];
        for (int i = 0; i < n; ++ i)
            allbit[i] = new int[n];
    
        int _x = (n - 1) / 2;
        int _y = (n - 1) / 2;
        int tofill = 1;
        allbit[_x][_y] = tofill ++;
        bool flag(true);
        for (int i = 2; i <= n; ++i)
        {
            if (flag)
            {
                allbit[_x][++ _y] = tofill ++;
                for (int j = 0; j < i - 1; ++ j)
                    allbit[++ _x][_y] = tofill ++;
                for (int j = 0; j < i - 1; ++ j)
                    allbit[_x][-- _y] = tofill ++;
                flag = false;
            }
            else
            {
                allbit[_x][-- _y] = tofill ++;
                for (int j = 0; j < i - 1; ++ j)
                    allbit[-- _x][_y] = tofill ++;
    
                for (int j = 0; j < i - 1; ++ j)
                    allbit[_x][++ _y] = tofill ++;
                flag = true;
            }
        }
    
        for (int i = 0; i < n; ++ i)
        {
            for (int j = 0; j < n; ++ j)
                cout << allbit[i][j] << "	";
            cout << endl;
        }
    
        for (int i = 0; i < n; ++ i)
            delete[] allbit[i];
        delete[] allbit;
    }

    测试

    #include <iostream>
    
    using namespace std;
    
    
    int main()
    {
        PrintSpiralArray(7);
        return 0;
    }
    出自datakv
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  • 原文地址:https://www.cnblogs.com/datakv/p/5709118.html
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