Submission #173701

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
173701	2020-01-05 07:26:47	itgl	K blocks (IZhO14_blocks)	C++14	100 / 100	631 ms	43084 KiB

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#include<bits/stdc++.h>
#define pb push_back
using namespace std;
int n, k;
int a[100005];
int dp[100005][105];
int main(){
  cin >> n >> k;
  int sum=0;
  for(int i=1;i<=n;i++){
    cin >> a[i];
    sum+=a[i];
  }
  memset(dp,1e9+7,sizeof(dp));
  dp[0][1]=0;
  for(int i=1;i<=n;i++){
    dp[i][1]=max(dp[i-1][1],a[i]);
  }
  dp[0][1]=1e9+7;
  for(int i=2;i<=k;i++){
    stack<int> pval, val;
    for(int j=1;j<=n;j++){
      int x = dp[j-1][i-1];
      while(!pval.empty()&&a[pval.top()]<a[j]){
        x=min(x,val.top());
        pval.pop();
        val.pop();
 
 
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• Subtask 1: 14 / 14
• Subtask 2: 18 / 18
• Subtask 3: 21 / 21
• Subtask 4: 47 / 47