8.18下午高精除

8.16/P-LargeDivision/main.cpp

@@ -0,0 +1,46 @@
+#include <iostream>
+#include<cstdio>
+#include<algorithm>
+#include <cmath>
+#include <cstring>
+using namespace std;
+const int S=205;
+char s[S];
+long long a[S];//´Ó1¿ªÊ¼
+int main()
+{
+    int t;
+    int t1=0;
+    int len;
+    long long b;
+    char c1;
+    scanf("%d",&t);
+    while(t--)
+    {
+        a[0]=0;//important
+        scanf("%s%lld",&s,&b);//lld
+        len=strlen(s);
+        for(int i=1;i<len; i++)
+        {
+            a[len-i]=s[i]-'0';
+        }
+        if(s[0]=='-')len--;
+        else a[len]=s[0]-'0';
+        if(b<0)b*=-1;
+        for(int i=len;i>0; i--)
+        {
+            a[i]%=b;
+            a[i-1]+=(a[i]*10);
+//            printf("%d ",a[i-1]); 
+        }
+        if(a[0]==0)
+        {
+            printf("Case %d: divisible\n",++t1);
+        }
+        else
+        {
+            printf("Case %d: not divisible\n",++t1);
+        }
+    }
+    return 0;
+}