Submission #1127562

#	Time	Username	Problem	Language	Result	Execution time	Memory
1127562		khanhphucscratch	Exam (eJOI20_exam)	C++20	12 / 100	21 ms	1864 KiB

exam

//Subtask 2
#include<bits/stdc++.h>
using namespace std;
int a[100005], b[100005], firstval[100005], lastval[100005];
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n; cin>>n;
    for(int i = 1; i <= n; i++) cin>>a[i];
    for(int i = 1; i <= n; i++) cin>>b[i];
    int target = b[1];
    for(int i = 1; i <= n; i++){
        if(a[i] >= target) firstval[i] = a[i];
        else firstval[i] = firstval[i-1];
    }
    for(int i = n; i >= 1; i--){
        if(a[i] >= target) lastval[i] = a[i];
        else lastval[i] = lastval[i+1];
    }
    int ans = 0;
    for(int i = 1; i <= n; i++) if(lastval[i] == target || firstval[i] == target) ans++;
    cout<<ans;
}

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