Submission #105831

#	Time	Username	Problem	Language	Result	Execution time	Memory
105831		Alexa2001	Lamps (JOI19_lamps)	C++17	4 / 100	21 ms	11860 KiB

lamp

#include <bits/stdc++.h>

using namespace std;

const int Nmax = 1e6 + 5;

int a[Nmax], b[Nmax];
int i, n;

int main()
{
  //  freopen("input", "r", stdin);
    cin.sync_with_stdio(false);

    cin >> n;
    string A, B;
    cin >> A >> B;

    for(i=1; i<=n; ++i)
        a[i] = A[i-1] - '0', b[i] = B[i-1] - '0';

    int dif = 0;
    for(i=1; i<=n+1; ++i)
        dif += (b[i] != b[i-1]);

    cout << dif / 2 << '\n';

    return 0;
}

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