delete pics to save space

history_source/ccf 入门篇/U5/5.4.2.cpp

@@ -0,0 +1,52 @@
+#include<iostream>
+#include<vector>
+struct Word
+{
+	int b;
+	int size;
+};
+using namespace std;
+int main()
+{
+	vector <char> sr;
+	Word l;
+	char in_;
+	vector <Word> so;
+	Word x;
+	while(true)
+	{
+		sr.clear();
+		so.clear();
+		do
+		{
+			sr.push_back(' ');
+		}
+		while((sr[sr.size()-1]=getchar())!='.');
+		sr.pop_back();
+		l.b=0;
+		l.size=0;
+		so.push_back(l);
+		for(int i=0;i<sr.size();i++)
+		{
+			if(sr[i]==' '){
+				l.b=i+1;
+				l.size=0;
+				so.push_back(l);
+			}
+			else so[so.size()-1].size++;
+		}
+        for(int i=so.size()-1;i>0;i--)
+        {
+	        for(int j=0;j<i;j++)
+	        {
+	            if(so[j].size>so[j+1].size){
+		            x=so[j];
+		            so[j]=so[j+1];
+		            so[j+1]=x;
+		        }	
+	        }
+        }
+        for(int i=so[0].b;sr[i]!=' ';i++) cout<<sr[i];
+        cout<<endl;
+	}
+}