diff --git a/BZOJ/2288/2288.cpp b/BZOJ/2288/2288.cpp new file mode 100644 index 00000000..9d5b9ea7 --- /dev/null +++ b/BZOJ/2288/2288.cpp @@ -0,0 +1,80 @@ +#include +#include +#include +#include +#include +#include + +using std::cin; +using std::cout; +const char endl = '\n'; + +const int N = 1e5 + 5; + +int n, m, p = 1, a[N], pre[N], suf[N], ans; +bool vis[N]; +std::priority_queue< + std::pair, + std::vector>, + std::greater<>> + q; + +int main() { + std::ios::sync_with_stdio(false); + cin.tie(nullptr); + + cin >> n >> m; + + for (int i = 1, x; i <= n; i++) { + cin >> x; + + if (a[p] * x < 0) { + a[++p] = x; + } else { + a[p] += x; + } + } + + int cnt = 0; + for (int i = 1; i <= p; i++) { + pre[i] = i - 1; + suf[i] = i + 1; + + if (a[i] > 0) { + ans += a[i]; + cnt++; + } + + q.emplace(std::abs(a[i]), i); + } + + while (cnt > m) { + while (vis[q.top().second]) q.pop(); + + auto o = q.top(); + q.pop(); + + if (pre[o.second] != 0 && suf[o.second] != p + 1 || a[o.second] > 0) { + cnt--; + 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