Submission #873944

#	Time	Username	Problem	Language	Result	Execution time	Memory
873944		NNNNN	Lamps (JOI19_lamps)	C++17	0 / 100	0 ms	348 KiB

lamp

#include <bits/stdc++.h>
using namespace std;

int n, one, two;
string s1, s2, ans;

int main() {
    ios:: sync_with_stdio(0), cin.tie(0);
    cin >> n;
    cin >> s1 >> s2;
    for (int i = 0; i < n; i++)
        ans += (s1[i] ^ s2[i]) + '0';
    if (ans[0] == '0') one++;
    else two++;
    for (int i = 1; i < n; i++)
        if (ans[i - 1] ^ ans[i] && ans[i] == '1') two++;
        else if (ans[i - 1] ^ ans[i]) one++;
    cout << min(one, two) + 1 << endl;
    return 0;
}

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