View Compilation Error

0_0_29409160_27530.cpp: In function 'void init()':
0_0_29409160_27530.cpp:22:8: error: expected primary-expression before ']' token
      f[]=;
        ^
0_0_29409160_27530.cpp:22:10: error: expected primary-expression before ';' token
      f[]=;
          ^
0_0_29409160_27530.cpp:23:8: error: expected primary-expression before ']' token
      f[]=;
        ^
0_0_29409160_27530.cpp:23:10: error: expected primary-expression before ';' token
      f[]=;
          ^
0_0_29409160_27530.cpp:24:7: error: 'i' was not declared in this scope
      ;i<N;i++){
       ^
0_0_29409160_27530.cpp: In function 'int main()':
0_0_29409160_27530.cpp:35:17: error: expected primary-expression before ';' token
          ll sum=;
                 ^
0_0_29409160_27530.cpp:37:18: error: expected ';' before ')' token
          ;i<N;i++){
                  ^
0_0_29409160_27530.cpp:50:2: error: expected '}' at end of input
  }
  ^
0_0_29409160_27530.cpp:50:2: error: expected '}' at end of input