Merge pull request #16 from KiritoTRw/master

QUST OJ Added.

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;
+}