Submission #624209

#	Time	Username	Problem	Language	Result	Execution time	Memory
624209		PoonYaPat	Pilot (NOI19_pilot)	C++14	89 / 100	1088 ms	137076 KiB

pilot

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int n,qu;
ll ans[1000001],sum;
vector<int> h[1000001],q[1000001];
set<int> s;

ll cal(ll x) {
    return x*(x+1)/2;
}

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin>>n>>qu;
    s.insert(0);
    s.insert(n+1);
    for (int i=1; i<=n; ++i) {
        int a; cin>>a;
        h[a].push_back(i);
    }
    for (int i=1; i<=qu; ++i) {
        int a; cin>>a;
        q[a].push_back(i);
    }
    sum=cal(n);
    for (int i=1000000; i>0; --i) {
        for (auto s : q[i]) ans[s]=sum;
        for (auto j : h[i]) {
            auto it=s.upper_bound(j);
            int r=*it, l=*(--it);
            sum-=cal(r-l-1);
            sum+=cal(j-l-1);
            sum+=cal(r-j-1);
            s.insert(j);
        }
    }
    for (int i=1; i<=qu; ++i) cout<<ans[i]<<"\n";
}

• 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: 0 / 11