Submission #1184793

#	Time	Username	Problem	Language	Result	Execution time	Memory
1184793		irmuun	Lamps (JOI19_lamps)	C++20	4 / 100	4 ms	2860 KiB

lamp

#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define pb push_back
#define ff first
#define ss second
#define all(s) s.begin(),s.end()
#define rall(s) s.rbegin(),s.rend()

int main(){
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    int n;
    cin>>n;
    string s,t;
    cin>>s>>t;
    int ans=0;
    for(int i=0;i<n;i++){
        if(t[i]=='1'&&(i==0||t[i-1]=='0')){
            ans++;
        }
    }
    cout<<ans;
}

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