View Compilation Error

0_0_39362336_3756.cpp: In function 'int main()':
0_0_39362336_3756.cpp:20:9: error: expected '}' before 'else'
   20 |         else if(a[i]<a[i-1])
      |         ^~~~
0_0_39362336_3756.cpp:18:9: note: to match this '{'
   18 |         {
      |         ^