Submission #792423

#	Time	Username	Problem	Language	Result	Execution time	Memory
792423		vjudge1	Lamps (JOI19_lamps)	C++14	4 / 100	24 ms	4188 KiB

lamp

#include<bits/stdc++.h>
#define ll long long
#define fi first
#define se second
using namespace std ;
const int N = 1e6 ;
int n ;
bool flag ;
char a[N + 1], b[N + 2] ;
signed main()
{
    ios_base::sync_with_stdio( 0 ) ;
    cin.tie( 0 ) ;
    cout.tie( 0 ) ;
    cin >> n ;
    for(int i = 1 ; i <= n ; i++)
    {
        cin >> a[i] ;
        if(a[i] == '1')
            flag = 1 ;
    }
    for(int i = 1 ; i <= n ; i++)
        cin >> b[i] ;
    if(!flag)
    {
        int ans = 0 ;
        b[n + 1] = '0' ;
        for(int i = 1 ; i <= n ; i++)
            if(b[i] == '1' && b[i + 1] == '0')
                ans++ ;
        cout << ans ;
        return 0 ;
    }
    return 0 ;
}

• Subtask 1: 0 / 6
• Subtask 2: 0 / 41
• Subtask 3: 4 / 4
• Subtask 4: 0 / 49