View Compilation Error

0_0_39475827_29541.cpp: In function 'int main()':
0_0_39475827_29541.cpp:108:19: error: expected ';' before 'if'
  108 |         cin>>op>>u
      |                   ^
      |                   ;
  109 |         if (op == 1)
      |         ~~         
0_0_39475827_29541.cpp:198:9: error: 'else' without a previous 'if'
  198 |         else
      |         ^~~~