View Compilation Error

0_0_37861739_17242.cpp: In function 'int main()':
0_0_37861739_17242.cpp:24:18: error: 'ave' was not declared in this scope
         if(minn<=ave&&ave<=minn&&maxn+(n-1)*minn<=aven*n&&minn+(n-1)*maxn>=aven*n){
                  ^