Submission #345409

#	Time	Username	Problem	Language	Result	Execution time	Memory
345409		bachaquer	K blocks (IZhO14_blocks)	C++14	0 / 100	1 ms	620 KiB

blocks

#include <bits/stdc++.h>

#define ll long long
#define pb push_back

using namespace std;

const int N = 2e4;
const int INF = 1e5;

int dp[N][N];

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);
    ll n, k, x;
    cin >> n >> k;
    vector<ll> v;
    v.pb(0);
    for (int i = 1; i <= n; i++) {
        cin >> x;
        v.pb(x);
    }
    for (int i = 0; i <= n; i++) {
        for (int j = 1; j <= N; j++) {
            dp[i][j] = INF;
        }
    }
    dp[0][0] = 0;
    for (int t = 1; t <= k; t++) {
        for (int i = 1; i <= n; i++) {
            ll mx = 0;
            for (int j = i; j > 0; j--) {
                mx = max(mx, v[j]);
                dp[i][t] = min(dp[i][t], dp[j - 1][t - 1] + (int)mx);
            }
        }
    }
    cout << dp[n][k];
    return 0;
}

Compilation message (stderr)

blocks.cpp: In function 'int main()':
blocks.cpp:26:22: warning: iteration 19999 invokes undefined behavior [-Waggressive-loop-optimizations]
   26 |             dp[i][j] = INF;
      |             ~~~~~~~~~^~~~~
blocks.cpp:25:27: note: within this loop
   25 |         for (int j = 1; j <= N; j++) {
      |                         ~~^~~~

• Subtask 1: 0 / 14
• Subtask 2: 0 / 18
• Subtask 3: 0 / 21
• Subtask 4: 0 / 47