View Compilation Error

0_0_29749440_28240.cpp: In function 'int main()':
0_0_29749440_28240.cpp:8:2: error: expected '(' before 'while'
  while(n--)
  ^
0_0_29749440_28240.cpp:22:1: error: expected '}' at end of input
 } 
 ^