View Compilation Error

0_0_8771784_20963.cpp: In member function `int suffix_array::exec(char*)':
0_0_8771784_20963.cpp:81: error: conflicting declaration 'int i'
0_0_8771784_20963.cpp:72: error: 'i' has a previous declaration as `int&i'
0_0_8771784_20963.cpp:81: error: declaration of `int i'
0_0_8771784_20963.cpp:72: error: conflicts with previous declaration `int&i'
0_0_8771784_20963.cpp: In function `int main()':
0_0_8771784_20963.cpp:141: error: 'struct suffix_array' has no member named 'in'