0_0_31273126_23343.cpp:25:1: error: 'll' does not name a type ll n,m,k,x,y,cnt,val,num; ^ 0_0_31273126_23343.cpp: In function 'int main()': 0_0_31273126_23343.cpp:36:13: error: 'n' was not declared in this scope while(cin>>n){ ^