#include #include #include #include #include #include #include #include #include #include #include #include #define vll vector #define vvvl vector #define vvl vector> #define VV(a, b, c, d) vector>(a, vector(b, c)) #define VVV(a, b, c, d) vector(a, vvl(b, vll (c, d))); #define re(c, b) for(ll c=0;c> n; vll a(n);re(i, n) std::cin >> a[i]; vector score(10000, 0); for(int i=0;i> t; score[t] += a[i]; } for(int i=1;i<10000;i++){ if(score[0] < score[i]){ std::cout << "NO" << '\n'; return 0; } } std::cout << "YES" << '\n'; }