diff --git a/POJ/3299_小優YoU.cpp b/POJ/3299_小優YoU.cpp
new file mode 100644
index 0000000..eab82f9
--- /dev/null
+++ b/POJ/3299_小優YoU.cpp
@@ -0,0 +1,38 @@
+//Memory   Time 
+//240K      0MS 
+
+#include<iostream>
+#include<math.h>
+#include<string>
+#include<iomanip>
+using namespace std;
+int main(void)
+{
+	char alpha;
+	double t,d,h;
+	int i;
+	for(;;)
+	{
+		t=d=h=200;    //三个参数的范围默认都是在-100 ~ 100
+		for(i=0;i<2;i++)
+		{
+			cin>>alpha;
+			if(alpha=='E')
+				return 0;
+			else if(alpha=='T')
+			    cin>>t;
+			else if(alpha=='D')
+				cin>>d;
+			else if(alpha=='H')
+				cin>>h;
+		}
+		if(h==200)
+			h=t+0.5555*(6.11*exp(5417.7530*(1/273.16-1/(d+273.16)))-10);
+		else if(t==200)
+			t=h-0.5555*(6.11*exp(5417.7530*(1/273.16-1/(d+273.16)))-10);
+		else if(d==200)
+			d=1/((1/273.16)-((log((((h-t)/0.5555)+10.0)/6.11))/5417.7530))-273.16;
+		cout<<setprecision(1)<<fixed<<"T "<<t<<" D "<<d<<" H "<<h<<endl;
+	}
+	return 0;
+}
diff --git a/QUSTOJ/1249.cpp b/QUSTOJ/1249.cpp
new file mode 100644
index 0000000..eab82f9
--- /dev/null
+++ b/QUSTOJ/1249.cpp
@@ -0,0 +1,38 @@
+//Memory   Time 
+//240K      0MS 
+
+#include<iostream>
+#include<math.h>
+#include<string>
+#include<iomanip>
+using namespace std;
+int main(void)
+{
+	char alpha;
+	double t,d,h;
+	int i;
+	for(;;)
+	{
+		t=d=h=200;    //三个参数的范围默认都是在-100 ~ 100
+		for(i=0;i<2;i++)
+		{
+			cin>>alpha;
+			if(alpha=='E')
+				return 0;
+			else if(alpha=='T')
+			    cin>>t;
+			else if(alpha=='D')
+				cin>>d;
+			else if(alpha=='H')
+				cin>>h;
+		}
+		if(h==200)
+			h=t+0.5555*(6.11*exp(5417.7530*(1/273.16-1/(d+273.16)))-10);
+		else if(t==200)
+			t=h-0.5555*(6.11*exp(5417.7530*(1/273.16-1/(d+273.16)))-10);
+		else if(d==200)
+			d=1/((1/273.16)-((log((((h-t)/0.5555)+10.0)/6.11))/5417.7530))-273.16;
+		cout<<setprecision(1)<<fixed<<"T "<<t<<" D "<<d<<" H "<<h<<endl;
+	}
+	return 0;
+}
diff --git a/QUSTOJ/1292.cpp b/QUSTOJ/1292.cpp
new file mode 100644
index 0000000..d570af1
--- /dev/null
+++ b/QUSTOJ/1292.cpp
@@ -0,0 +1,59 @@
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+using namespace std;
+
+void draw(int c)
+{
+    for(int L=1;L<=c;L++)
+    {
+        for(int i=0;i<(c-L);i++)
+        {
+            printf(" ");
+        }
+        printf("/");
+        for(int i=0;i<2*L-2;i++)
+        {
+            printf(" ");
+        }
+        printf("\\");
+        for(int i=0;i<(c+(c-L)*2);i++)
+        {
+            printf(" ");
+        }
+        printf("/");
+        for(int i=0;i<2*L-2;i++)
+        {
+            printf(" ");
+        }
+        printf("\\");
+        printf("\n");
+    }
+    for(int i=0;i<c-1;i++)
+    {
+        printf("\n");
+    }
+    for(int i=0;i<2*c;i++)
+    {
+        printf(" ");
+    }
+    for(int i=0;i<c;i++)
+    {
+        printf("_");
+    }
+    printf("\n");
+}
+
+int main()
+{
+    int t;
+    scanf("%d",&t);
+    while(t--)
+    {
+        int n;
+        scanf("%d",&n);
+        draw(n);
+        printf("\n");
+    }
+    return 0;
+}
diff --git a/QUSTOJ/1352.cpp b/QUSTOJ/1352.cpp
new file mode 100644
index 0000000..3fe3ca8
--- /dev/null
+++ b/QUSTOJ/1352.cpp
@@ -0,0 +1,34 @@
+#include <cstdio>
+//Written by Kiritow. 求最大公约数
+long gcd(long a,long b)
+{
+	if(a==0||b==0)
+	{
+		if(a+b==0)
+		{
+			return 0;
+		}
+		return (a==0)?b:a;
+	}
+
+	while(a!=b)
+	{
+		if(a>b)
+		{
+			a=a-b;
+		}
+		else
+		{
+			b=b-a;
+		}
+	}
+	return a;
+}
+int main()
+{
+    int a,b;
+    scanf("%d%d",&a,&b);
+    long s=gcd(a,b);
+    printf("%ld %ld\n",s,a*b/s);
+    return 0;
+}
diff --git a/QUSTOJ/1371.cpp b/QUSTOJ/1371.cpp
new file mode 100644
index 0000000..b9fbecf
--- /dev/null
+++ b/QUSTOJ/1371.cpp
@@ -0,0 +1,25 @@
+#include <cstdio>
+const int MAXN = 1024;
+int p[MAXN];
+int main()
+{
+    int n;
+    scanf("%d",&n);
+    for(int i=0;i<n;i++)
+    {
+        scanf("%d",&p[i]);
+    }
+    int m;
+    scanf("%d",&m);
+    m=m%n;
+    for(int i=n-m;i<n;i++)
+    {
+        printf("%d ",p[i]);
+    }
+    for(int i=0;i<n-m;i++)
+    {
+        printf("%d ",p[i]);
+    }
+    printf("\n");
+    return 0;
+}
diff --git a/QUSTOJ/1373.cpp b/QUSTOJ/1373.cpp
new file mode 100644
index 0000000..f3b9fc1
--- /dev/null
+++ b/QUSTOJ/1373.cpp
@@ -0,0 +1,14 @@
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+using namespace std;
+char buff[1024];
+int main()
+{
+    int n;
+    scanf("%d%*c",&n);
+    gets(buff);
+    scanf("%d",&n);
+    printf("%s\n",buff+n-1);
+    return 0;
+}
diff --git a/QUSTOJ/1430.cpp b/QUSTOJ/1430.cpp
new file mode 100644
index 0000000..6a38ec8
--- /dev/null
+++ b/QUSTOJ/1430.cpp
@@ -0,0 +1,48 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+int main()
+{
+    int a,b,c,d;
+    char tmp[256];
+    int times;
+    scanf("%d",&times);
+    for(;times>0;times--)
+    {
+        scanf("%s",tmp);
+        a=0;
+        b=0;
+        c=0;
+        d=0;
+        int len=strlen(tmp);
+        int i;
+        for(i=0;i<len;i++)
+        {
+            if(tmp[i]>='A'&&tmp[i]<='Z')
+            {
+                a=1;
+            }
+            else if(tmp[i]>='a'&&tmp[i]<='z')
+            {
+                b=1;
+            }
+            else if(tmp[i]>='0'&&tmp[i]<='9')
+            {
+                c=1;
+            }
+            else if(tmp[i]=='~'||tmp[i]=='!'||tmp[i]=='@'||tmp[i]=='#'||tmp[i]=='$'||tmp[i]=='%'||tmp[i]=='^')
+            {
+                d=1;
+            }
+        }
+        if(a+b+c+d>=3)
+        {
+            printf("YES\n");
+        }
+        else
+        {
+            printf("NO\n");
+        }
+    }
+    return 0;
+}