水仙花数是指一个 n 位数 ( n≥3 ),它的每个位上的数字的 n 次幂之和等于它本身。(例如:1^3 + 5^3 + 3^3 = 153,1634 = 1^4 + 6^4 + 3^4 + 4^4)。
给出一个整数M,求 >= M的最小的水仙花数。
Input
一个整数M(10 <= M <= 10^60)
Output
输出>= M的最小的水仙花数,如果没有符合条件的水仙花数,则输出:No Solution
Input示例
300
Output示例
370
解题思路:
把 1060 以内的数都打表打出,然后判断就行了。
/**
2016 - 08 - 04 晚上
Author: ITAK
Motto:
今日的我要超越昨日的我,明日的我要胜过今日的我,
以创作出更好的代码为目标,不断地超越自己。
**/
#include <iostream>
#include <cstdio>
#include <cstring>
#include <cstdlib>
#include <cmath>
#include <vector>
#include <queue>
#include <algorithm>
#include <set>
using namespace std;
typedef long long LL;
typedef unsigned long long ULL;
const int INF = 1e9+5;
const int MAXN = 1e6+5;
const int MOD = 1e9+7;
const double eps = 1e-7;
const double PI = acos(-1);
using namespace std;
string Narcissus[90] = {"0","1","2","3","4","5","6","7","8","9","153","370","371","407","1634",
"8208","9474","54748","92727","93084","548834","1741725","4210818","9800817","9926315",
"24678050","24678051","88593477","146511208","472335975","534494836","912985153",
"4679307774","32164049650","32164049651","40028394225","42678290603","44708635679",
"49388550606","82693916578","94204591914","28116440335967","4338281769391370",
"4338281769391371","21897142587612075","35641594208964132","35875699062250035",
"1517841543307505039","3289582984443187032","4498128791164624869","4929273885928088826",
"63105425988599693916","128468643043731391252","449177399146038697307",
"21887696841122916288858","27879694893054074471405","27907865009977052567814",
"28361281321319229463398","35452590104031691935943","174088005938065293023722",
"188451485447897896036875","239313664430041569350093","1550475334214501539088894",
"1553242162893771850669378","3706907995955475988644380","3706907995955475988644381",
"4422095118095899619457938","121204998563613372405438066","121270696006801314328439376",
"128851796696487777842012787","174650464499531377631639254","177265453171792792366489765",
"14607640612971980372614873089","19008174136254279995012734740",
"19008174136254279995012734741","23866716435523975980390369295",
"1145037275765491025924292050346","1927890457142960697580636236639",
"2309092682616190307509695338915","17333509997782249308725103962772",
"186709961001538790100634132976990","186709961001538790100634132976991",
"1122763285329372541592822900204593","12639369517103790328947807201478392",
"12679937780272278566303885594196922","1219167219625434121569735803609966019",
"12815792078366059955099770545296129367","115132219018763992565095597973971522400",
"115132219018763992565095597973971522401"};
int main()
{
string s;
while(cin>>s)
{
int len = s.size();
for(int i=0; i<89; i++)
{
int tmp = Narcissus[i].size();
if(tmp == len)
{
if(Narcissus[i] >= s)
{
cout<<Narcissus[i]<<endl;
goto endW;
}
}
if(tmp > len)
{
cout<<Narcissus[i]<<endl;
goto endW;
}
}
puts("No Solution");
endW:;
}
return 0;
}
时间: 2024-10-03 03:18:29