Submission #1303283

#TimeUsernameProblemLanguageResultExecution timeMemory
1303283trandangquangPilot (NOI19_pilot)C++20
100 / 100
505 ms42800 KiB
#include<bits/stdc++.h>
using namespace std;

#define foru(i,a,b) for(int i=(a); i<=(b); ++i)
#define ford(i,a,b) for(int i=(a); i>=(b); --i)
#define rep(i,a) for(int i=0; i<(a); ++i)
#define sz(a) (int)(a).size()
#define all(a) (a).begin(),(a).end()
#define bit(s,i) (((s)>>(i))&1)
#define ii pair<int,int>
#define vi vector<int>
#define vii vector<ii>
#define fi first
#define se second
#define ll long long
#define eb emplace_back
#define pb push_back
#define __builtin_popcount __builtin_popcountll
#define _ << " " <<

template <class X, class Y> bool maxi(X &x, Y y){return x<y?x=y,true:false;}
template <class X, class Y> bool mini(X &x, Y y){return x>y?x=y,true:false;}

const int N=1e6+5;

int n,q,h[N],l[N],r[N];
pair<int,ll> mx[N];
ll pre[N];

void solve(){
    cin>>n>>q;
    foru(i,1,n) cin>>h[i];

    foru(i,1,n){
        l[i]=i-1;
        while(l[i]>0 && h[l[i]]<=h[i]) l[i]=l[l[i]];
    }
    ford(i,n,1){
        r[i]=i+1;
        while(r[i]<=n && h[r[i]]<h[i]) r[i]=r[r[i]];
    }

    foru(i,1,n){
        mx[i].fi=h[i];
        mx[i].se=1LL*(i-l[i])*(r[i]-i);
    }
    sort(mx+1,mx+1+n);
    foru(i,1,n){
        pre[i]=pre[i-1]+mx[i].se;
//        cout<<mx[i].fi _ mx[i].se<<'\n';
    }

    foru(i,1,q){
        int y; cin>>y;
        int pos=upper_bound(mx+1, mx+1+n, pair<int,ll>(y,1e18))-mx-1;
        cout<<pre[pos]<<'\n';
    }
}

int32_t main(){
    #define task "test"
    if(fopen(task".inp", "r")){
        freopen(task".inp", "r", stdin);
        freopen(task".out", "w", stdout);
    }
    cin.tie(0)->sync_with_stdio(0);

    int tc=1; //cin>>tc;
    foru(i,1,tc){
        solve();
    }
}

Compilation message (stderr)

pilot.cpp: In function 'int32_t main()':
pilot.cpp:63:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   63 |         freopen(task".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
pilot.cpp:64:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   64 |         freopen(task".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...