diff --git a/3.cpp b/3.cpp
deleted file mode 100644
index 2d2e080..0000000
--- a/3.cpp
+++ /dev/null
@@ -1,95 +0,0 @@
-#include <stdio.h>
-#include <time.h>
-#include <stdlib.h>
-#include <string.h>
-void input();
-void order();
-void output();
-void menu();
-int sum=0;
-struct stu
-{
-	int Id;
-	float score1;
-	float score2;
-	float score3;
-	float score;
-	float arvscore;
-}stu[1000];
-int main()
-{
-	while(1)
-	{
-		menu();
-	}
-}
-void menu()
-{
-	char t;
-	printf("                              1.Input\n");
-	printf("                              2.output\n");
-	printf("                              3.order\n");
-	printf("                              4.quit\n");
-	t=getchar();
-	if(t=='i')
-	{
-		printf("You are trying to Input info\n");
-		for(int i=0;i<3;i++)
-		{
-			input();
-		}
-		order();
-		output();
-	}
-	else if(t=='o')
-	{
-		printf("You are trying to Output info\n");
-	}
-	else if(t=='m')
-	{
-		printf("You are trying to Make things ordered\n");
-	}
-	else if(t=='q')
-	{
-		printf("You are about to Quit\n");
-	}
-	else
-	{
-		if(t!='\n')
-		{
-			printf("Wrong input\n");
-		}
-	}
-}
-void input()
-{
-	sum=sum+1;
-	scanf("%d",&stu[sum].Id);
-	scanf("%f",&stu[sum].score1);
-	scanf("%f",&stu[sum].score2);
-	scanf("%f",&stu[sum].score3);
-	stu[sum].score=stu[sum].score3+stu[sum].score2+stu[sum].score1;
-	stu[sum].arvscore=stu[sum].score/3;
-}
-void order()
-{
-	for(int i=1;i<=sum;i++)
-	{
-		for(int j=i;j<=sum;j++)
-		{
-			if(stu[i].score>stu[j].score)
-			{
-				stu[sum+1]=stu[i];
-				stu[i]=stu[j];
-				stu[j]=stu[sum+1];
-			}
-		}
-	}
-}
-void output()
-{
-	for(int i=1;i<=sum;i++)
-	{
-		printf("%d %.1f %.1f\n",stu[i].Id,stu[i].score,stu[i].arvscore);
-	}
-}