View Compilation Error

0_0_30423384_32322.cpp: In function 'int main(int, const char**)':
0_0_30423384_32322.cpp:12:24: error: expression in new-declarator must have integral or enumeration type
   int** arr = new int*[n];
                        ^
0_0_30423384_32322.cpp:13:26: error: expression in new-declarator must have integral or enumeration type
   int* student = new int[n]; // 瀛樻瘡涓�瀛︾敓鐨勬�绘垚缁?
                          ^
0_0_30423384_32322.cpp:14:25: error: expression in new-declarator must have integral or enumeration type
   int* course = new int[m]; // 瀛樻瘡闂ㄨ�剧殑鎬绘垚缁?
                         ^
0_0_30423384_32322.cpp:20:21: error: expression in new-declarator must have integral or enumeration type
    arr[i] = new int[m];
                     ^