제출 #699274

#제출 시각아이디문제언어결과실행 시간메모리
699274mmmmaasssExam (eJOI20_exam)C++14
12 / 100
121 ms3116 KiB
#include <bits/stdc++.h>

using namespace std;

#define ll long long

int main()
{
   int n;cin >> n;
   int rr = 0;
    vector<int> a(n + 1) , b(n + 1);
    for(int i = 1;i <= n;i ++){
        cin >> a[i];
    }
    for(int i = 1;i <= n;i ++){
        cin >> b[i];
    }
    ll ans = 0;
    for(int i = 1;i <= n;i ++){
        if(a[i] != b[i]){
            continue;
        }
        ll l = i , r = i;
        while(r < n && a[r + 1] <= b[i]){
            ++ r;
        }
        while(l > 1 && l >= rr && a[l - 1] <= b[i]){
            -- l;
        }
        if(r > rr)ans += r - l + 1;
        rr = r;
    }
    cout << ans << endl;
}
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