| 比赛 |
4043级NOIP2022欢乐赛8th |
评测结果 |
AAAAAAAAAAAAAAAAAAAAAA |
| 题目名称 |
反素数 |
最终得分 |
100 |
| 用户昵称 |
op_组撒头屯 |
运行时间 |
0.000 s |
| 代码语言 |
C++ |
内存使用 |
0.00 MiB |
| 提交时间 |
2022-11-21 20:59:10 |
显示代码纯文本
#include <bits/stdc++.h>
using namespace std;
const int N=100000+5;
int n,tot=68;
int ant[]={0,1,2,4,6,12,24,36,48,60,120,180,240,360,720,840,1260,1680,2520,5040,7560,10080,15120,20160,25200,27720,45360,50400,55440,83160,110880,166320,221760,277200,332640,498960,554400,665280,720720,1081080,1441440,2162160,2882880,3603600,4324320,6486480,7207200,8648640,10810800,14414400,17297280,21621600,32432400,36756720,43243200,61261200,73513440,110270160,122522400,147026880,183783600,245044800,294053760,367567200,551350800,698377680,735134400,1102701600,1396755360};
int main(){
freopen ("ant.in","r",stdin);
freopen ("ant.out","w",stdout);
scanf("%d",&n);
int l=upper_bound(ant+1,ant+tot+1,n)-ant-1;
printf("%d\n",ant[l]);
return 0;
}