View Compilation Error

0_0_34039848_9278.cpp: In function 'int main()':
0_0_34039848_9278.cpp:11:5: error: expected ';' before 'while'
     while(n--){
     ^
0_0_34039848_9278.cpp:31:1: error: expected '}' at end of input
 } 
 ^