delete pics to save space

history_source/ccf 入门篇/U2/2.1.1.cpp

@@ -0,0 +1,7 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	cout<<"ant\n_3cq\nmy\nfriend\nMycar\nmy_car\nall\na_abc\ndaf_32\nmaxn";
+	while(true);
+}

history_source/ccf 入门篇/U2/2.1.2.cpp

@@ -0,0 +1,16 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	int a=998;
+	float b=3.1415926535897;
+	char c='a';
+	double d=1.0/3;
+	long double e=8.0/9;
+	long f=999999999999999999999;
+	cout<<a<<endl<<b<<endl<<c<<endl<<d<<endl<<e<<endl<<f<<endl;
+	
+	while(true);
+	
+	return 0;
+}

history_source/ccf 入门篇/U2/2.1.3.cpp

@@ -0,0 +1,8 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	char a='b';
+	cout<<a;
+	while(true);
+}

history_source/ccf 入门篇/U2/2.2.1.cpp

@@ -0,0 +1,7 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	cout<<"B,C";
+	while(true);
+} 

history_source/ccf 入门篇/U2/2.2.2.cpp

@@ -0,0 +1,11 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	cout<<"y=m*x+b"<<endl;
+	cout<<"m=(a+b+c)/(e*f)"<<endl;
+	cout<<"a=sqrt((x-3*y)*z)"<<endl;
+	cout<<"a=(2*x-y)/(x+pow(y,2))"<<endl;
+	cout<<"m=(x-y*z)/(2/c)";
+	while(true); 
+}

history_source/ccf 入门篇/U2/2.2.3.cpp

@@ -0,0 +1,7 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	cout<<"C,E,F";
+	while(true);
+} 

history_source/ccf 入门篇/U2/2.2.4.cpp

@@ -0,0 +1,7 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	cout<<"11\n9\n10\n9\n10\n10\n50\n21";
+	while(true);
+} 

history_source/ccf 入门篇/U2/2.2.5.cpp

@@ -0,0 +1,8 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	cout<<"4 3 4\n4 4 3"<<endl<<endl<<"==========="<<endl;
+	cout<<"2 1";
+	while(true);
+} 

history_source/ccf 入门篇/U2/2.2.6.cpp

@@ -0,0 +1,10 @@
+#include<iostream>
+#include<cmath> 
+using namespace std;
+int main()
+{
+	cout<<"ceil(3.14)="<<ceil(3.14)<<" floor(3.14)="<<floor(3.14)<<endl;
+	cout<<"4^3.0="<<pow(4,3.0)<<endl;
+	cout<<"sqrt(9)="<<sqrt(9)<<endl;
+	while(true);
+}

history_source/ccf 入门篇/U2/2.2.7.cpp

@@ -0,0 +1,9 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	int m=540/(120+150);
+	cout<<"<EFBFBD><EFBFBD><EFBFBD>꼶<EFBFBD>ֵ<EFBFBD>"<<m*120<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<endl;
+	cout<<"<EFBFBD><EFBFBD><EFBFBD>꼶<EFBFBD>ֵ<EFBFBD>"<<m*150<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>";
+	while(true);
+}

history_source/ccf 入门篇/U2/2.2.8.cpp

@@ -0,0 +1,9 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	int a,b;
+	cin>>a>>b;
+	cout<<a<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<b<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<a%b;
+	while(true);
+}

history_source/ccf 入门篇/U2/2.3.1.cpp

@@ -0,0 +1,7 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	cout<<"3 3\n3 8\n11 8\nc=1\nc=1.375\n";
+	while(true);
+}

history_source/ccf 入门篇/U2/2.3.2.cpp

@@ -0,0 +1,21 @@
+#include<iostream>
+#include<string>
+#include<sstream>
+using namespace std;
+int main()
+{
+	char a;
+	string x;
+	stringstream b;
+		b.flush();
+		cin>>x;
+		for(int i=0;i<x.size();i++){
+			a=x[i];
+			a=219-a;
+			b<<a;
+		}
+		x="";
+		b>>x;
+		cout<<x<<endl;
+	while(1==1);
+}

history_source/ccf 入门篇/U2/2.3.3.cpp

@@ -0,0 +1,21 @@
+#include<iostream>
+#include<string>
+#include<sstream>
+using namespace std;
+int main()
+{
+	char a;
+	string x;
+	stringstream b;
+		b.flush();
+		cin>>x;
+		for(int i=0;i<x.size();i++){
+			a=x[i];
+			a=97+(a-97+17)%24;
+			b<<a;
+		}
+		x="";
+		b>>x;
+		cout<<x<<endl;
+	while(1==1);
+}

history_source/ccf 入门篇/U2/2.4.1.cpp

@@ -0,0 +1,10 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	float a;
+	while(true){
+		cin>>a;
+		cout<<a<<"<EFBFBD>H"<<"="<<(a-32)/1.8<<"<EFBFBD><EFBFBD>"<<endl; 
+	}
+}

history_source/ccf 入门篇/U2/2.4.2.cpp

@@ -0,0 +1,12 @@
+#include<iostream>
+#include<cmath>
+using namespace std;
+int main()
+{
+	float a,b,c,p;
+	while(true){
+		cin>>a>>b>>c;
+		p=(a+b+c)/2.0;
+		cout<<"S="<<sqrt(p*(p-a)*(p-b)*(p-c))<<endl;
+	}
+}

history_source/ccf 入门篇/U2/2.4.3.cpp

@@ -0,0 +1,11 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	int a;
+	while(true){
+		cin>>a;
+		a=a*1001;
+		cout<<a/7/11/13<<endl;
+	}
+}

history_source/ccf 入门篇/U2/2.5.1.cpp

@@ -0,0 +1,15 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+	cout<<"a=202"<<endl;
+	cout<<"2*a=404"<<endl;
+	cout<<"a=202"<<endl;
+	cout<<"2323.343450"<<endl;
+	cout<<"             2323.34"<<endl;
+	cout<<"2323.34"<<endl;
+	cout<<"2323.34"<<endl;
+	cout<<"============"<<endl<<endl;
+	cout<<"1, 1,001,123,123 ,00123";
+	while(true);
+}

history_source/ccf 入门篇/U2/2.6.1.cpp

@@ -0,0 +1,13 @@
+#include<iostream>
+#include<cstdio>
+using namespace std;
+int main()
+{
+	int a,n,m;
+	cin>>n>>m>>a;
+	int x,y;
+	x=n/a;
+	y=m/a;
+	cout<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<<x*y<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>";
+	while(true);
+}

history_source/ccf 入门篇/U2/2.6.2.cpp

@@ -0,0 +1,13 @@
+#include<iostream>
+#include<cstdio>
+#include<cmath>
+using namespace std;
+int main()
+{
+	while(true){
+	  double R,X,P;
+	  cin>>X>>R>>P;
+	  cout<<P<<"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ"<<X*pow(1+R/100.0,P)<<endl;
+    }
+	
+}

history_source/ccf 入门篇/U2/2.6.3.cpp

@@ -0,0 +1,13 @@
+#include<iostream>
+#include<cstdio>
+#include<cmath>
+using namespace std;
+int main()
+{
+	double a,b,c,d;
+	while(true){
+	cin>>a>>b>>c;
+	d=20-a-b-c;
+	printf("<EFBFBD><EFBFBD>Ӧȥ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>%G<><47><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD>ʯͷ\n",d);
+    }
+}

history_source/ccf 入门篇/U2/2.6.4.cpp

@@ -0,0 +1,21 @@
+#include<iostream>
+#include<cstdio>
+#include<cmath>
+using namespace std;
+int main()
+{
+	int i=0;
+	double a,b;
+	while(true){
+		cin>>a>>b;
+		if(a<b)cout<<a<<" % "<<b<<"="<<a;
+		else{
+			if(a==b)cout<<a<<" % "<<b<<"="<<0;
+			else{
+			for(i=1;i*b<a;i++);
+			cout<<a<<" % "<<b<<"="<<a-b*(i-1);
+		}
+		}
+		cout<<endl;
+	}
+}

history_source/ccf 入门篇/U2/2.6.5.cpp

@@ -0,0 +1,15 @@
+#include<iostream>
+#include<cmath>
+#include<cstdlib>
+#include<ctime>
+using namespace std; 
+int main()
+{
+	srand(time(0));
+	int a,b,c;
+	a=rand()%1000000+1;
+	b=rand()%1000000+1;
+	c=rand()%1000000+1;
+	cout<<a<<"-"<<b<<"+"<<c<<"+"<<c<<"*("<<a<<"-"<<b<<")="<<a-b+c+c*(a-b)<<endl;
+	while(true);
+}