螺旋数字正方形 (100/100 分数)
题目描述
打印螺旋数字正方形
输入描述
输入一个整数n,1<=n<=31
输出描述
输出数字正方形。
注意,每个数字占4个字符,右对齐,不全则补足空格;
样例输入
10
样例输出
1 2 3 4 5 6 7 8 9 10 36 37 38 39 40 41 42 43 44 11 35 64 65 66 67 68 69 70 45 12 34 63 84 85 86 87 88 71 46 13 33 62 83 96 97 98 89 72 47 14 32 61 82 95 100 99 90 73 48 15 31 60 81 94 93 92 91 74 49 16 30 59 80 79 78 77 76 75 50 17 29 58 57 56 55 54 53 52 51 18 28 27 26 25 24 23 22 21 20 19
注释
#include <iostream> using namespace std; int main() { int i, j, r, l, b, d, pl, N, tmp; cin >> N; for (i = 1; i <= N; i++) { for (j = 1; j <= N; j++) { r = i; d = 0; pl = j - r; if (r > N - j + 1) { r = N - j + 1; d = 1; pl = i - r; } if (r > N - i + 1) { r = N - i + 1; d = 2; pl = N - j + 1 - r; } if (r > j) { r = j; d = 3; pl = N - i + 1 - r; } l = N - 2 * (r - 1) - 1; b = (4 * N - 4) * (r - 1) - 4 * (r - 1) * (r - 2) + 1; tmp = b + l * d + pl; if(tmp < 10){ cout << " " << tmp; }else if (tmp > 9 && tmp <100){ cout << " " << tmp; }else{ cout << " " << tmp; } } cout << ("\n"); } return 0; }
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