delete pics to save space

history_source/信息学奥赛一本通/1.5.3.3.cpp

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+#include<iostream>
+#include<string>
+using namespace std;
+int main()
+{
+	string dna1,dna2;
+	double f,b=0;
+	cin>>f;
+	cin>>dna1>>dna2;
+	for(int i=0;i<dna1.size();i++)
+		if(dna1[i]==dna2[i]) b=b+1;
+	b=b/dna1.size();
+	if(b>=f) cout<<"yes"<<endl;
+	else cout<<"no"<<endl;
+	return 0;
+}
+