Create nochange.cpp

Changes

1 changed files (+41/-0)

• 2013/November/Gold/nochange.cpp (new)
  • @@ -0,0 +1,41 @@
    + #include <algorithm> + #include <iostream> + using namespace std; + + int v[20], p[100005] = { 0 }, DP[1 << 16]; + + inline int sum(int i, int j) { return p[j + 1] - p[i]; } + + int main() { + int K, N; cin >> K >> N; + for (int i = 0; i < K; i++) cin >> v[i]; + for (int i = 0; i < N; i++) { + int c; cin >> c; + p[i + 1] = c + p[i]; + } + + for (int i = 0; i < (1 << K); i++) { + if (DP[i] < N) { + for (int j = 0; j < K; j++) { + if ((i & 1 << j) == 0) { + int l = DP[i], h = N; + while (l + 1 < h) { + int m = (l + h) / 2; + sum(DP[i], m) > v[j] ? h = m : l = m; + } + DP[i ^ 1 << j] = max(l + 1, DP[i ^ 1 << j]); + } + } + } + } + + int ans = -1; + for (int i = 0; i < (1 << K); i++) { + if (DP[i] == N) { + int sum = 0; + for (int j = 0; j < K; j++) if ((i & 1 << j) == 0) sum += v[j]; + ans = max(sum, ans); + } + } + cout << ans << endl; + }