#include <bits/stdc++.h> const int MAXA = 300000; using namespace std; int n, t[MAXA]; int main() { ios_base::sync_with_stdio(0); cin.tie(0); cin >> n; for (int i = 0; i < n; i++) { int x; cin >> x; t[x]++; } int res = -1; for (int i = 0; i + 1 < MAXA; i++) { if (t[i]) { res = i; t[i + 1] += t[i] / 2; t[i] = t[i] & 1; } } cout << res << "\n"; }
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 31 | #include <bits/stdc++.h> const int MAXA = 300000; using namespace std; int n, t[MAXA]; int main() { ios_base::sync_with_stdio(0); cin.tie(0); cin >> n; for (int i = 0; i < n; i++) { int x; cin >> x; t[x]++; } int res = -1; for (int i = 0; i + 1 < MAXA; i++) { if (t[i]) { res = i; t[i + 1] += t[i] / 2; t[i] = t[i] & 1; } } cout << res << "\n"; } |