Submission #402655

#	Time	Username	Problem	Language	Result	Execution time	Memory
402655		erray	Lamps (JOI19_lamps)	C++11	0 / 100	1 ms	460 KiB

lamp

// author: erray
#include <bits/stdc++.h>
 
using namespace std;
 
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  int n;
  string a, b;
  cin >> n >> a >> b;
  assert(count(a.begin(), a.end(), '0') == n);
  int ans = 0;
  for (int i = 1; i < n; ++i) {
    if (b[i] == '1' && b[i - 1] == '0') {
      ++ans;
    }
  }
  cout << ans << '\n';
}

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