#include <bits/stdc++.h> using namespace std; #define REP(i, n) for (int i=0, ___=(n); i<___; ++i) #define FOR(i, a, b) for (int i=(a), ___=(b); i<=___; ++i) int read() { int n; cin >> n; return n; } int v[222222]; int main() { int n = read(); int res = -1; while (n--) { int x = read(); while (v[x] == 1) { v[x] = 0; ++x; } v[x] = 1; res = std::max(res, x); } cout << res << "\n"; 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 | #include <bits/stdc++.h> using namespace std; #define REP(i, n) for (int i=0, ___=(n); i<___; ++i) #define FOR(i, a, b) for (int i=(a), ___=(b); i<=___; ++i) int read() { int n; cin >> n; return n; } int v[222222]; int main() { int n = read(); int res = -1; while (n--) { int x = read(); while (v[x] == 1) { v[x] = 0; ++x; } v[x] = 1; res = std::max(res, x); } cout << res << "\n"; return 0; } |