foo.cc: In function 'int main()':
foo.cc:12:11: error: expected ';' before 'if'
   12 |   ans[i]=0
      |           ^
      |           ;
   13 |   if(n[i]>=90&&n[i]<=140&&n[i+1]>=60&&n[i+1]<=90)
      |   ~~       
foo.cc:15:3: error: 'else' without a previous 'if'
   15 |   else
      |   ^~~~

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