Submission #971489

#	Time	Username	Problem	Language	Result	Execution time	Memory
971489		njoop	K blocks (IZhO14_blocks)	C++14	0 / 100	76 ms	172664 KiB

blocks

#include <bits/stdc++.h>
#define ll long long
using namespace std;

int n, k, arr[100010];
pair<ll, ll> dp[100010][110];

int main() {
    cin.tie(0)->sync_with_stdio(0);
    cin >> n >> k;
    for(int i=1; i<=n; i++) {
        cin >> arr[i];
    }
    for(int i=0; i<100010; i++) {
        for(int j=0; j<110; j++) {
            dp[i][j] = {1e9, 1e9};
        }
    }
    dp[1][1] = {arr[1], arr[1]};
    for(int i=1; i<n; i++) {
        for(int j=1; j<=k; j++) {
            if(j > i) continue;
            if(dp[i+1][j+1].first > dp[i][j].first + arr[i+1]) {
                dp[i+1][j+1].first = dp[i][j].first + arr[i+1];
                dp[i+1][j+1].second = arr[i];
            }
            if(dp[i+1][j].first > dp[i][j].first + arr[i+1]) {
                dp[i+1][j].first = dp[i][j].first;
                if(dp[i+1][j].second < arr[i+1]) {
                    dp[i+1][j].first += arr[i+1] - dp[i+1][j].second;
                    dp[i+1][j].second = arr[i+1];
                }
            }
        }
    }
    cout << dp[n][k].first;
    return 0;
}

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