0_0_13362605_14819.cpp:52:6: error: 'maxn' was not declared in this scope ll a[maxn]; ^ 0_0_13362605_14819.cpp: In function 'int main()': 0_0_13362605_14819.cpp:67:28: error: 'a' was not declared in this scope scanf("%lld", &a[j]); ^