Submission

----------

Score: 0

User: xBIwJEtx

Problemset: ลำแสงเลเซอร์สะท้อน

Language: cpp

Time: 0.002 second

Submitted On: 2025-04-07 22:26:19

#include <bits/stdc++.h>
#define endl '\n'
using namespace std;
using ll = long long int;
using pii = pair<int, int>;
using piii = pair<int, pair<int, int>>;

int ans = 1;
int a[503], b[503];

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n,m;
    cin >> n >> m;
    a[0] = b[0] = 1e6;
    for(int i=1; i<=n; i++){
        cin >> a[i];
    }
    for(int i=1; i<=m; i++){
        cin >> b[i];
    }

    int temp = 1;
    for(int i=1; i<=n; i++){
        for(int j=temp; j<=m; j++){
            if(a[i] == b[j]){
                ans++;
            }
            else if(b[j] > a[i]){
                temp = j;
                break;
            }
            else if((a[i-1] < b[i] || b[j-1] < a[i]) && ((i-1)%2) != ((j-1)%2) && (b[j] > a[i] || a[i] >= b[j])){
                ans++;
            }
            else if(b[j-1] < a[i-1] && b[j] > a[i] && ((i-1)%2) == ((j-1)%2)){
                ans++;
            }
            else if(b[j-1] > a[i-1] && b[j] < a[i] && ((i-1)%2) == ((j-1)%2)){
                ans++;
            }
        }
    }

    cout << ans;
}