View Compilation Error

0_0_25355030_30581.cpp: In function 'int main()':
0_0_25355030_30581.cpp:7:2: error: expected ';' before 'while'
  while(n--)
  ^
0_0_25355030_30581.cpp:20:1: error: expected '}' at end of input
 }
 ^