Submission #1087907

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1087907	2024-09-13 11:51:35	vukhacminh	K blocks (IZhO14_blocks)	C++17	100 / 100	156 ms	42880 KiB

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#include <bits/stdc++.h>
using namespace std;
const int maxn = 1e5 + 5;
int dp[maxn][105], v[maxn];
int main() {
    // freopen("BLOCKS.inp","r",stdin);
    // freopen("BLOCKS.out","w",stdout);
    int n, k;
    cin >> n >> k;
    for(int i=0; i<=n; i++)
        for(int j=0; j<=k; j++) dp[i][j] = 1e9;
    for(int i=1; i<=n; i++) cin >> v[i];
    dp[0][0] = 0;
    int mx = 0;
    for(int i=1; i<=n; i++) {
        mx = max(mx, v[i]);
        dp[i][1] = mx;
    }
    for(int j=2; j<=k; j++) {
        stack<int> st1, st2;
        for(int i=1; i<=n; i++) {
            int mn = dp[i-1][j-1];
            while(!st1.empty() && st1.top() <= v[i]) {
                mn = min(mn, st2.top());
 
 
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• Subtask 1: 14 / 14
• Subtask 2: 18 / 18
• Subtask 3: 21 / 21
• Subtask 4: 47 / 47