View Compilation Error

0_0_25119029_26107.cpp: In function 'int main()':
0_0_25119029_26107.cpp:30:9: error: 'else' without a previous 'if'
         else dp[i]=dp[airline[i]];
         ^
0_0_25119029_26107.cpp:30:17: error: 'i' was not declared in this scope
         else dp[i]=dp[airline[i]];
                 ^
0_0_25119029_26107.cpp: At global scope:
0_0_25119029_26107.cpp:34:1: error: expected declaration before '}' token
 }
 ^