delete pics to save space

history_source/信息学奥赛一本通/2.1.8.cpp

@@ -0,0 +1,91 @@
+#include<ctime>
+using namespace std;
+#include<iostream>
+#include<string>
+#include<vector>
+int yu;
+namespace bigNumF
+{
+	int mi;
+}
+struct bigNum
+{
+	static const int BASE=100000000,SIZE=8;
+	vector<int>num;
+/*	void clear()
+	{
+		while(num[0]==0&&num.size()>1) num.erase(num.begin());
+		if(num.size()==0) num.push_back(0);
+	}*/
+	bigNum operator=(string b)
+	{
+		num.clear();
+		bigNumF::mi=1;
+		for(int i=0;i<b.size();i++)
+		{
+			if(bigNumF::mi==BASE) bigNumF::mi=1;
+			if(i%SIZE==0) num.insert(num.begin(),0);
+			num[0]+=(b[b.size()-1-i]-'0')*bigNumF::mi;
+			bigNumF::mi*=10;
+		}
+		while(num[0]==0&&num.size()>1) num.erase(num.begin());
+	}
+	void operator/(int b)
+	{
+		int x;
+		bool f=1;
+		long long add=0;
+		for(int i=0;i<num.size();i++)
+		{
+			add=add*BASE+num[i];
+			x=(add/b)%BASE;
+			if(x==0)
+			{
+				if(i==num.size()-1) cout<<x;
+			}
+			else
+			{
+				if(f)
+				{
+					cout<<x;
+					f=0;
+				}
+				else
+				{
+					if(x<10) cout<<"0000000";
+					else if(x<100) cout<<"000000";
+					else if(x<1000) cout<<"00000";
+					else if(x<10000) cout<<"0000";
+					else if(x<100000) cout<<"000";
+					else if(x<1000000) cout<<"00";
+					else if(x<10000000) cout<<"0";
+					cout<<x; 
+				}
+			}
+			add=add%b;
+		}
+		yu=add;
+	}
+};
+istream& operator>>(istream &a,bigNum &b)
+{
+	char x;
+	string zhuan;
+	while(a.get(x),x>='0'&&x<='9') zhuan+=x;
+	b=zhuan;
+	return a;
+}
+int main()
+{
+	ios::sync_with_stdio(false); 
+	string x;
+	bigNum a;
+	cin>>x;
+	a=x;
+//	int runTime=clock();
+	a/13;
+	cout<<endl<<yu<<endl;
+//	cout<<"time used "<<clock()-runTime<<" ms"<<endl; 
+	return 0;
+}
+//9999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999