Advertisement
Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- //Make CSP great again
- //Vengeance
- #include <bits/stdc++.h>
- #define TASK "TESTCODE"
- #define Log2(x) 31 - __builtin_clz(x)
- using namespace std;
- const int N = 1e5, K = 1e2;
- int dp[N + 1][K + 1], a[N + 1], n, k;
- stack<pair<int, int> > St;
- void read()
- {
- cin >> n >> k;
- for (int i = 1, j = 0; i <= n; ++ i)
- {
- cin >> a[i];
- j = max(j, a[i]);
- dp[i][1] = j;
- }
- }
- void solve()
- {
- for (int j = 2; j <= k; ++ j)
- {
- while(!St.empty())
- {
- St.pop();
- }
- for (int i = j; i <= n; ++ i)
- {
- dp[i][j] = dp[i - 1][j - 1];
- while(!St.empty() && a[i] >= St.top().first)
- {
- //cerr << St.top().first << ' ' << St.top().second << '\n';
- dp[i][j] = min(dp[i][j], St.top().second);
- St.pop();
- }
- if (St.empty() || dp[i][j] + a[i] < St.top().first + St.top().second)
- {
- St.push({a[i], dp[i][j]});
- }
- //cerr << dp[i][j] << ' ';
- dp[i][j] = St.top().first + St.top().second;
- }
- }
- cout << dp[n][k];
- }
- int main()
- {
- ios_base::sync_with_stdio(false);
- cin.tie(nullptr);
- if (fopen(TASK".INP", "r"))
- {
- freopen(TASK".INP", "r", stdin);
- //freopen(TASK".OUT", "w", stdout);
- }
- int t = 1;
- bool typetest = false;
- if (typetest)
- {
- cin >> t;
- }
- for (int __ = 1; __ <= t; ++ __)
- {
- //cout << "Case " << __ << ": ";
- read();
- solve();
- }
- }
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement