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Flip coin (Blue Bridge Cup)

2022-04-23 05:08:00 【FOWng_ lp】

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AC code

#include<cstdio>
#include<iostream>
#include<algorithm>
using namespace std;
	string a,b;
	int l=-1,r,ans;
int main(){
    
	cin >> a >> b;
	for(int i = 0;i < a.size();i++){
    
		if(a[i]!=b[i]){
    
			if(l==-1)l = i;
			else {
    
				ans += (i-l);
				l=-1;
				}
			}
		}
		cout << ans << endl;
	return 0;
	}