原题链接:蓝桥杯基础练习VIP-回形取数
参考代码:
#include<iostream> using namespace std; int **Init_arr(int m, int n)//初始化二维数组 { int **arr; arr = new int*[m]; for (int i = 0;i < m;i++) arr[i] = new int[n]; return arr; } int main() { int m, n; cin >> m >> n; int **a; a = Init_arr(m, n); for (int i = 0;i < m;i++) for (int j = 0;j < n;j++) cin >> a[i][j]; int row1 = 0, row2 = m - 2, coulmn1 = 1, coulmn2 = n - 2, j1 = 0, m1 = m, m2 = m, n1 = n, n2 = n, p = 0, q = 0; for (int t = 0, num = 0;num < m*n;t++) { row1 += t, coulmn1 += t, row2 -= t, coulmn2-=t, m1-=t, j1+=t, n1-=t, m2-=t, p+=t, n2-=t, q+=t; for (;row1 < m1;row1++) cout << a[row1][j1] << " ",num++; if (num == m*n) break; for (;coulmn1 < n1;coulmn1++) cout << a[m2 - 1][coulmn1] << " ", num++; if (num == m*n) break; for (;row2 >= p;row2--) cout << a[row2][n2 - 1] << " ", num++; if (num == m*n) break; for (;coulmn2 > q;coulmn2--) cout << a[p][coulmn2] << " ", num++; row1 = 0, row2 = m - 2, coulmn1 = 1, coulmn2 = n - 2, j1 = 0, m1 = m, m2 = m, n1 = n, n2 = n, p = 0, q = 0; } return 0; }
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