Submission #576588

#	Time	Username	Problem	Language	Result	Execution time	Memory
576588		vqpahmad	Exam (eJOI20_exam)	C++14	12 / 100	22 ms	1108 KiB

exam

#include <bits/stdc++.h>
#define ll long long
#define endl '\n'
#define all(a) a.begin(),a.end()
#define mod (ll)(10000007)
using namespace std;
const int mx = 1e6 + 15;




int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n;
    cin >> n;
    vector<pair<int,int>> ab(n);
    bool flag = 1;
    bool ans = 0;
    for (int i=0;i<n;i++){
        cin >> ab[i].first;
    }
    for (int i=0;i<n;i++){
        cin >> ab[i].second;
        if (i){
            if (ab[i-1].second!=ab[i].second) flag = 0;
        }
    }
    for (int i=0;i<n;i++){
        if (ab[i].first==ab[i].second) ans = 1;
    }
    if (flag&&ans) {
        int cnt =0;
        for (int i=0;i<n;i++){
            if (ab[i].first==ab[i].second){
                int p = i;
                while (ab[p].first<=ab[i].second){
                    cnt++;
                    p--;
                    if (p==-1) break;
                }
                p = i+1;
                if (p!=n){
                    while (ab[p].first<=ab[i].second){
                        cnt++;
                        p++;
                        if (p==n) break;
                    }
                }
                i = p-1;
            }
        }
        cout << cnt ;
    }
    else cout << 0 << 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