View Compilation Error

0_0_38460880_12241.cpp:26:16: error: expected primary-expression before ';' token
  const int N = ;
                ^
0_0_38460880_12241.cpp:28:13: error: size of array 'text' is not an integral constant-expression
  char text[N], pat[];
             ^
0_0_38460880_12241.cpp:28:20: error: storage size of 'pat' isn't known
  char text[N], pat[];
                    ^
0_0_38460880_12241.cpp: In function 'int main()':
0_0_38460880_12241.cpp:39:20: error: expected primary-expression before ',' token
          int ans = , len = strlen(pat);
                    ^
0_0_38460880_12241.cpp:42:19: error: 'len' was not declared in this scope
              p += len;
                   ^
0_0_38460880_12241.cpp:46:6: error: return-statement with no value, in function returning 'int' [-fpermissive]
      return ;
      ^