View Compilation Error

0_0_36506120_7375.cpp: In function 'int main()':
0_0_36506120_7375.cpp:5:16: error: expected primary-expression before ';' token
      for(int i=;i<=;++i)//预处理打表
                ^
0_0_36506120_7375.cpp:5:20: error: expected primary-expression before ';' token
      for(int i=;i<=;++i)//预处理打表
                    ^
0_0_36506120_7375.cpp:6:26: error: expected primary-expression before ';' token
          for(int j=i*i;j<;++j)
                          ^
0_0_36506120_7375.cpp:9:6: error: return-statement with no value, in function returning 'int' [-fpermissive]
      return ;
      ^