Submission #1002486

#	Time	Username	Problem	Language	Result	Execution time	Memory
1002486		TitanicXDzz	Pilot (NOI19_pilot)	C++14	0 / 100	140 ms	8132 KiB

pilot

#include<bits/stdc++.h>
using namespace std;
int a[1000010];
int l[1000010];
int r[1000010];
int dp[100010];
priority_queue<pair<int,int>> pq;
int main(){
int n,q;
cin>>n>>q;
l[0]=-1;
r[0]=1;
l[n+1]=n;
r[n+1]=n+2;
int maxi=0;
for(int i=1;i<=n;i++){
    cin>>a[i];
    l[i]=i-1;
    r[i]=i+1;
    pq.push({-a[i],-i});
    if(a[i]>maxi)
        maxi=a[i];
}
int sumi=0;
while(pq.empty()==0){
    int x=pq.top().first;
    int y=pq.top().second;
    pq.pop();
    int g=(r[-y]-r[-y-1])*(l[-y+1]-l[-y]);
    sumi+=g;
    l[r[-y-1]]=l[-y+1];
    r[l[-y+1]]=r[-y-1];
    dp[-x]=sumi;
}
for(int i=1;i<=1000000;i++){
    if(dp[i]==0)
        dp[i]=dp[i-1];
}
for(int i=0;i<q;i++){
    int ans;
    cin>>ans;
    cout<<dp[ans]<<endl;
}
return 0;
}

Compilation message (stderr)

pilot.cpp: In function 'int main()':
pilot.cpp:36:12: warning: iteration 100009 invokes undefined behavior [-Waggressive-loop-optimizations]
   36 |     if(dp[i]==0)
      |        ~~~~^
pilot.cpp:35:14: note: within this loop
   35 | for(int i=1;i<=1000000;i++){
      |             ~^~~~~~~~~

• Subtask 1: 0 / 3
• Subtask 2: 0 / 10
• Subtask 3: 0 / 12
• Subtask 4: 0 / 15
• Subtask 5: 0 / 5
• Subtask 6: 0 / 9
• Subtask 7: 0 / 14
• Subtask 8: 0 / 10
• Subtask 9: 0 / 11
• Subtask 10: 0 / 11