Submission #3039805


Source Code Expand

#include<cstdio>
#include<cctype>
using namespace std;
inline char nc()
{
    static char buf[100000],*p1=buf,*p2=buf;
    return p1==p2&&(p2=(p1=buf)+fread(buf,1,100000,stdin),p1==p2)?EOF:*p1++;
}
int readint()
{
    int x=0;
    short f=1;
    char c=nc();
    while(!isdigit(c))
    {
        if(c=='-') f=-1;
        c=nc();
    }
    while(isdigit(c))
    {
        x=x*10+c-'0';
        c=nc();
    }
    return x*f;
}
bool su(int a)
{
    if(a==1) return 0;
    if(a==2||a==3) return 1;
    if(a%6!=1&&a%6!=5) return 0;
    for(int i=5;i*i<=a;i+=6) if(a%i==0||a%(i+2)==0) return 0;
    return 1;
}
int main()
{
	//freopen("xx.in","r",stdin);
	int n;
	while(n=readint())
	{
		for(int i=n;i>=1;i--)
		{
			if(n%i==0&&su(i))
			{
				printf("%d\n",i);
				break;
			}
		}
	}
    return 0;
}

Submission Info

Submission Time
Task B - Working for the World
User luogu_bot2
Language C++ (GCC 5.4.1)
Score 0
Code Size 843 Byte
Status TLE
Exec Time 2103 ms
Memory 128 KB

Judge Result

Set Name All
Score / Max Score 0 / 100
Status
AC × 9
TLE × 18
Set Name Test Cases
All 00-sample, 10-minimum, 11-maximum, 12-little, 13-large, 14-middle, 15-zero, 50-random00, 50-random01, 50-random02, 50-random03, 50-random04, 50-random05, 50-random06, 50-random07, 50-random08, 50-random09, 50-random10, 50-random11, 50-random12, 50-random13, 50-random14, 50-random15, 50-random16, 50-random17, 50-random18, 50-random19
Case Name Status Exec Time Memory
00-sample AC 97 ms 128 KB
10-minimum AC 0 ms 128 KB
11-maximum AC 292 ms 128 KB
12-little AC 0 ms 128 KB
13-large TLE 2103 ms 128 KB
14-middle AC 1109 ms 128 KB
15-zero AC 0 ms 128 KB
50-random00 TLE 2103 ms 128 KB
50-random01 TLE 2103 ms 128 KB
50-random02 TLE 2103 ms 128 KB
50-random03 TLE 2103 ms 128 KB
50-random04 AC 1899 ms 128 KB
50-random05 TLE 2103 ms 128 KB
50-random06 TLE 2103 ms 128 KB
50-random07 TLE 2098 ms 128 KB
50-random08 TLE 2103 ms 128 KB
50-random09 AC 1937 ms 128 KB
50-random10 TLE 2103 ms 128 KB
50-random11 AC 1954 ms 128 KB
50-random12 TLE 2103 ms 128 KB
50-random13 TLE 2103 ms 128 KB
50-random14 TLE 2103 ms 128 KB
50-random15 TLE 2103 ms 128 KB
50-random16 TLE 2103 ms 128 KB
50-random17 TLE 2103 ms 128 KB
50-random18 TLE 2103 ms 128 KB
50-random19 TLE 2103 ms 128 KB