Submission #699274

#	Time	Username	Problem	Language	Result	Execution time	Memory
699274		mmmmaasss	Exam (eJOI20_exam)	C++14	12 / 100	121 ms	3116 KiB

exam

#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;
}

• Subtask 1: 0 / 14
• Subtask 2: 12 / 12
• Subtask 3: 0 / 13
• Subtask 4: 0 / 23
• Subtask 5: 0 / 16
• Subtask 6: 0 / 22