Submission #1249059

#	Time	Username	Problem	Language	Result	Execution time	Memory
1249059		Geforgs	Pilot (NOI19_pilot)	C++20	100 / 100	419 ms	54228 KiB

pilot

#include <iostream>
#include <iomanip>
#include <vector>
#include <cmath>
#include <algorithm>
#include <set>
#include <queue>
#include <map>
#include <stack>
#include <bitset>
#include <string>
#include <cstring>
#include <iterator>
#include <random>
#define ll long long
#define ld long double
#define inf (ll)(2*1e18)
#define sort(a) sort(a.begin(), a.end())
#define reverse(a) reverse(a.begin(), a.end())
#define pb push_back
#define endl "\n"
using namespace std;

ll get(ll x, vector<ll>& parent){
    if(x == parent[x]) return x;
    return parent[x] = get(parent[x], parent);
}

ll unite(ll x, ll y, vector<ll>& parent, vector<ll>& size){
    x = get(x, parent);
    y = get(y, parent);
    if(x == y) return 0;
    ll res = size[x]*size[y];
    size[y] += size[x];
    parent[x] = y;
    return res;
}

void solve(){
    ll n, q, i, y;
    cin>>n>>q;
    vector<pair<ll, ll>> a(n);
    vector<ll> b(n);
    vector<ll> parent(n);
    vector<ll> ans(1e6 + 7);
    vector<ll> size(n, 1);
    for(i=0;i<n;++i){
        cin>>a[i].first;
        a[i].second = i;
        parent[i] = i;
        b[i] = a[i].first;
    }
    sort(a);
    for(auto [val, x]: a){
        ++ans[val];
        if(x > 0 and val >= b[x-1]){
            ans[val] += unite(x, x-1, parent, size);
        }
        if(x < n-1 and val >= b[x+1]){
            ans[val] += unite(x+1, x, parent, size);
        }
    }
    for(i=1;i<1e6+7;++i){
        ans[i] += ans[i-1];
    }
    for(i=0;i<q;++i){
        cin>>y;
        cout<<ans[y]<<endl;
    }
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    srand(time(nullptr));
    ll t=1;
//    cin>>t;
    for(;t>0;--t){
        solve();
    }
    return 0;
}

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