#include <iostream> using namespace std; const unsigned int MAX = 201718 + 20; unsigned int coins[MAX]; int main() { std::ios_base::sync_with_stdio(false); unsigned int n, x, m=0; cin >> n; for(auto i=0u; i<n; ++i) { cin >> x; ++(coins[x]); } x = coins[0]; unsigned int *coin = coins; for(auto i=1u; i<MAX; ++i) { x = (x>>1) + *(++coin); m = (x) ? i : m; } cout << m << endl; return 0; }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | #include <iostream> using namespace std; const unsigned int MAX = 201718 + 20; unsigned int coins[MAX]; int main() { std::ios_base::sync_with_stdio(false); unsigned int n, x, m=0; cin >> n; for(auto i=0u; i<n; ++i) { cin >> x; ++(coins[x]); } x = coins[0]; unsigned int *coin = coins; for(auto i=1u; i<MAX; ++i) { x = (x>>1) + *(++coin); m = (x) ? i : m; } cout << m << endl; return 0; } |