delete pics to save space

history_source/ccf 基础篇/U3/3.5.1.cpp

@@ -0,0 +1,38 @@
+#include<iostream>
+#include<string>
+using namespace std;
+struct people
+{
+	string name;
+	int f;
+};
+int n;
+int main()
+{
+	people sr[100];
+	int k;
+	while(true)
+	{
+		cin>>n>>k;
+		for(int i=0;i<n;i++) cin>>sr[i].name>>sr[i].f;
+		bool b;
+        people x;
+        for(int i=n-1;i>0;i--)
+        {
+            b=1;
+	        for(int j=0;j<i;j++)
+	        {
+	            if(sr[j].f>sr[j+1].f){
+		            x=sr[j];
+		            sr[j]=sr[j+1];
+		            sr[j+1]=x;
+                    b=0;
+		        }	
+	        }
+        if(b) break;
+        }
+        cout<<endl;
+        cout<<sr[k-1].name<<endl;
+        cout<<endl;
+	}
+}

history_source/ccf 基础篇/U3/3.5.2.cpp

@@ -0,0 +1,63 @@
+#include<iostream>
+#include<vector>
+using namespace std;
+struct Sr
+{
+	int num;
+	int p=0;
+};
+int main()
+{
+	vector <int> sr1;
+	vector <Sr> sr2;
+	Sr li;
+	int n;
+	while(true)
+	{
+		cin>>n;
+		sr1.resize(n);
+		for(int i=0;i<n;i++) cin>>sr1[i];
+		sr2.clear();
+		for(int i=0;i<n;i++)
+		{
+			li.num=sr1[i];
+			sr2.push_back(li);
+		}
+		bool b;
+        for(int i=sr2.size()-1;i>0;i--)
+        {
+            b=1;
+	        for(int j=0;j<i;j++)
+	        {
+	            if(sr2[j].num>sr2[j+1].num){
+		            li=sr2[j];
+		            sr2[j]=sr2[j+1];
+		            sr2[j+1]=li;
+                    b=0;
+		        }	
+	        }
+            if(b) break;
+        }
+        for(int i=0;i+1<sr2.size();i++)
+        {
+        	if(sr2[i].num==sr2[i+1].num)
+        	{
+        		sr2.erase(sr2.begin()+i);
+        		i--;
+			}
+		}
+		for(int i=1;i<=sr2.size();i++) sr2[i].p=i;
+		for(int i=0;i<sr1.size();i++)
+		{
+			for(int j=0;j<sr2.size();j++)
+			{
+				if(sr1[i]==sr2[j].num)
+				{
+					cout<<sr2[j].p+1<<" ";
+					break; 
+				}
+			}
+		}
+		cout<<endl;
+	}
+} 

history_source/ccf 基础篇/U3/3.5.3.cpp

@@ -0,0 +1,85 @@
+#include<iostream>
+#include<vector>
+#include<string>
+#include<cmath>
+#define BASE 100000000
+#define SIZE 8
+using namespace std;
+struct bigNum
+{
+	vector<int>num;
+	bigNum operator=(string b)
+	{
+		num.clear();
+		for(int i=0;i<b.size();i++)
+		{
+			if(i%SIZE==0) num.insert(num.begin(),0);
+			num[0]+=(b[b.size()-1-i]-'0')*pow(10,i%SIZE);
+		}
+		while(num[0]==0&&num.size()>1) num.erase(num.begin());
+	}
+	bigNum operator+(bigNum b)
+	{
+		bigNum a;
+		a.num=num;
+		if(a.num.size()<b.num.size())
+		{
+			bigNum c=a;
+			a=b;
+			b=c;
+		}
+		int ai,bi;
+		int j=0;
+		for(ai=a.num.size()-1,bi=b.num.size()-1;bi>=0;ai--,bi--)
+		{
+			a.num[ai]=a.num[ai]+b.num[bi]+j;
+			j=a.num[ai]/BASE;
+			a.num[ai]=a.num[ai]%BASE;
+		}
+		while(ai>=0&&j)
+		{
+			a.num[ai]+=j;
+			j=a.num[ai]/BASE;
+			a.num[ai]=a.num[ai]%BASE;
+			ai--;
+		}
+		if(j) a.num.insert(a.num.begin(),1);
+		return a;
+	}
+};
+ostream& operator<<(ostream &a,bigNum b)
+{
+	a<<b.num[0];
+	int x;
+	for(int i=1;i<b.num.size();i++)
+	{
+		x=b.num[i];
+		if(x<10) a<<"0000000";
+		else if(x<100) a<<"000000";
+		else if(x<1000) a<<"00000";
+		else if(x<10000) a<<"0000";
+		else if(x<100000) a<<"000";
+		else if(x<1000000) a<<"00";
+		else if(x<10000000) a<<"0";
+		a<<x; 
+	}
+	return a;
+}
+int main()
+{
+    int n;
+    cin>>n;
+    bigNum ans[n];
+    bigNum a,b;
+    string x;
+    for(int i=0;i<n;i++)
+    {
+    	cin>>x;
+    	a=x;
+    	cin>>x;
+    	b=x;
+    	ans[i]=a+b; 
+	}
+	for(int i=0;i<n;i++) cout<<ans[i]<<endl;
+	return 0;
+}