USACO/Bronze
백준 18787 Mad Scientist (USACO February 2020 Bronze 2번)
ssam..
2020. 3. 23. 13:16
문제 링크: https://www.acmicpc.net/problem/18787
18787번: Mad Scientist
First, FJ can transform the substring that corresponds to the first character alone, transforming $B$ into GHGGGHH. Next, he can transform the substring consisting of the third and fourth characters, giving $A$. Of course, there are other combinations of t
www.acmicpc.net
예시
7
GHHHGHH
HHGGGHH
앞에서부터 훑으면서 첫번째 자리가 다르므로 한번 toggle해주고, 세번째~네번째 자리가 다르므로 한번 더 toggle해줘서 총 2번이 답임.
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#include <bits/stdc++.h>
using namespace std;
int n;
string a, b;
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
cin >> n >> a >> b;
int ans = 0;
bool flag = true;
for(int i = 0; i < n; i++) {
if(flag && a[i] != b[i]) {
flag = false;
ans++;
}
if(a[i] == b[i]) {
flag = true;
}
}
cout << ans << '\n';
return 0;
}
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