제출 #865270

#제출 시각아이디문제언어결과실행 시간메모리
865270LittleOrangeLamps (JOI19_lamps)C++17
4 / 100
4 ms4496 KiB
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
int main(){
    ios::sync_with_stdio(0);cin.tie(0);
    ll n;
    string a,b;
    cin >> n >> a >> b;
    ll ans = 0;
    for(ll i = 0;i<n;i++) ans += b[i]=='1'&&(i==0||b[i-1]=='0');
    cout << ans << "\n";
}
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