Submission #1171174

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1171174	2025-03-20 14:08:13	kiennguyendinh	K blocks (IZhO14_blocks)	C++20	0 / 100	0 ms	400 KiB

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#include <bits/stdc++.h>
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2")
using namespace std;
int n,k;
int a[1000005];
int rmq[1000005][20];
long long dp[101][1000005];
int get(int l,int r){
    int v = __lg(r - l + 1);
    return max(rmq[l][v],rmq[r - (1 << v) + 1][v]);
}
void dnc(int lim,int l,int r,int optl,int optr){
    if(l > r) return;
    int mid = (l + r)/2;
    long long bV = LLONG_MAX,bP,cost;
    for(int i = optl;i <= min(mid - 1,optr);i++){
        cost = get(i + 1,mid) + dp[lim - 1][i];
        if(cost < bV){
            bV = cost;
            bP = i;
        }
    }
    dp[lim][mid] = bV;
    dnc(lim,l,mid - 1,optl,bP);
    dnc(lim,mid + 1,r,bP,optr);
}
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
 
 
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• Subtask 1: 0 / 14
• Subtask 2: 0 / 18
• Subtask 3: 0 / 21
• Subtask 4: 0 / 47