【基础试题】蛇形矩阵 Time Limit:1000MS Memory Limit:65536K Total Submit:252 Accepted:118 Description 蛇形矩

#include <iostream>  #include <cmath>    using namespace std;    int main()  {      int n[11][11] = {0};      int N;      int num = 1;      int a = 1, b = 0, c;            cin >> N;               for (int i = 1; i <= 2*N - 1; i++)      {          if (i % 2 == 1)          {              if (i <= N)                  b++;              else                  a++;              n[a][b] = num;              num++;              c = N - 1 - abs(N - i);              for (int j = 1; j <=  c; j++)              {                  a++;                  b--;                  n[a][b] = num;                  num++;              }          }          else          {              if (i <= N)                  a++;              else                  b++;              n[a][b] = num;              num++;              c = N - 1 - abs(N - i);              for (int j = 1; j <= c; j++)              {                  a--;                  b++;                  n[a][b] = num;                  num++;              }          }      }            for (int i = 1; i<= N; i++)      {          for (int j = 1; j <= N; j++)              cout << n[i][j] << " ";          cout << endl;      }      // system("pause");       return 0;  }