제출 #834274

#제출 시각아이디문제언어결과실행 시간메모리
834274vjudge1K개의 묶음 (IZhO14_blocks)C++17
100 / 100
209 ms44708 KiB
#include <bits/stdc++.h> using namespace std; #define pii pair<int,int> #define fi first #define se second int N, K; int A[100100]; int dp[100100][110]; stack<pii> st; int maks; // dp[n][1] = max(a[1..n]); int main () { cin >> N >> K; for(int i=1; i<=N; i++) { cin >> A[i]; maks = max(maks, A[i]); dp[i][1] = maks; } for(int k=2; k<=K; k++) { while(!st.empty()) st.pop(); for(int n=1; n<=N; n++) { if (n<k) dp[n][k] = 1e9; else { int mins = dp[n-1][k-1]; while(!st.empty() && A[st.top().fi] <= A[n]) { mins = min(mins, st.top().se); st.pop(); } dp[n][k] = mins+A[n]; if (!st.empty()) dp[n][k] = min(dp[n][k], dp[st.top().fi][k]); st.push({n,mins}); } } } cout << dp[N][K] << endl; }
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...