View Compilation Error

0_0_30112650_504.cpp: In function 'int main()':
0_0_30112650_504.cpp:24:18: error: expected primary-expression before '==' token
         if(n==2||==3){
                  ^
0_0_30112650_504.cpp: At global scope:
0_0_30112650_504.cpp:39:2: error: 'n' does not name a type
 }n
  ^