delete pics to save space

2.10622.cpp

@@ -0,0 +1,43 @@
+#include<cstdio>
+#include<cmath>
+typedef long long LL;
+inline LL quickpow(LL x,LL n)
+{
+    LL result=1;
+    for(;n;n>>=1)
+	{
+        if(n&1)
+            result*=x;
+        x*=x;
+    }
+    return result;
+}
+int main()
+{
+#ifdef local
+	freopen("pro.in","r",stdin);
+#endif
+    LL x,px,ans;
+    while(~scanf("%lld",&x)&&x)
+	{
+        bool flag=false;
+        px=x<0?-x:x;
+        for(int i=2;i<=floor(sqrt(px))&&!flag;i++)
+		{
+            for(int j=2;;j++)
+			{
+                LL t=quickpow(i,j);
+                if(t>px)
+                    break;
+                if(t==px&&(x>0||(x<0&&(j%2==1))))
+				{
+                    flag=true;
+                    ans=j;
+                    break;
+                }
+            }
+        }
+        printf("%lld\n",flag?ans:1);
+    }
+    return 0;
+}