View Compilation Error

0_0_39545934_26428.cpp: In function 'void solve()':
0_0_39545934_26428.cpp:67:2: error: expected ';' before 'if'
   67 | 0
      |  ^
      |  ;
   68 |     if (sum >= 0x3f3f3f3f) cout << "-1" << '\n';
      |     ~~
0_0_39545934_26428.cpp:69:5: error: 'else' without a previous 'if'
   69 |     else cout << sum << '\n';
      |     ^~~~