• HDU-4608 I-number 枚举


      题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4608

      直接暴力枚举,没什么好说的。。。。

      1 //STATUS:C++_AC_765MS_740KB
      2 #include <functional>
      3 #include <algorithm>
      4 #include <iostream>
      5 //#include <ext/rope>
      6 #include <fstream>
      7 #include <sstream>
      8 #include <iomanip>
      9 #include <numeric>
     10 #include <cstring>
     11 #include <cassert>
     12 #include <cstdio>
     13 #include <string>
     14 #include <vector>
     15 #include <bitset>
     16 #include <queue>
     17 #include <stack>
     18 #include <cmath>
     19 #include <ctime>
     20 #include <list>
     21 #include <set>
     22 #include <map>
     23 using namespace std;
     24 //using namespace __gnu_cxx;
     25 //define
     26 #define pii pair<int,int>
     27 #define mem(a,b) memset(a,b,sizeof(a))
     28 #define lson l,mid,rt<<1
     29 #define rson mid+1,r,rt<<1|1
     30 #define PI acos(-1.0)
     31 //typedef
     32 typedef __int64 LL;
     33 typedef unsigned __int64 ULL;
     34 //const
     35 const int N=100010;
     36 const int INF=0x3f3f3f3f;
     37 const int MOD=100000,STA=8000010;
     38 const LL LNF=1LL<<60;
     39 const double EPS=1e-8;
     40 const double OO=1e15;
     41 const int dx[4]={-1,0,1,0};
     42 const int dy[4]={0,1,0,-1};
     43 const int day[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
     44 //Daily Use ...
     45 inline int sign(double x){return (x>EPS)-(x<-EPS);}
     46 template<class T> T gcd(T a,T b){return b?gcd(b,a%b):a;}
     47 template<class T> T lcm(T a,T b){return a/gcd(a,b)*b;}
     48 template<class T> inline T lcm(T a,T b,T d){return a/d*b;}
     49 template<class T> inline T Min(T a,T b){return a<b?a:b;}
     50 template<class T> inline T Max(T a,T b){return a>b?a:b;}
     51 template<class T> inline T Min(T a,T b,T c){return min(min(a, b),c);}
     52 template<class T> inline T Max(T a,T b,T c){return max(max(a, b),c);}
     53 template<class T> inline T Min(T a,T b,T c,T d){return min(min(a, b),min(c,d));}
     54 template<class T> inline T Max(T a,T b,T c,T d){return max(max(a, b),max(c,d));}
     55 //End
     56 
     57 char s[N];
     58 int num[N];
     59 int T,len;
     60 
     61 void add(int *num)
     62 {
     63     int i,t;
     64     num[0]+=1;
     65     if(num[0]<10)return;
     66     else t=1,num[0]=0;
     67     for(i=1;i<len;i++){
     68         num[i]+=t;
     69         t=num[i]/10;
     70         if(num[i]>=10)num[i]-=10;
     71         else return;
     72     }
     73     if(t){
     74         num[i]=1;
     75         len++;
     76     }
     77     return;
     78 }
     79 
     80 bool isok(int *num)
     81 {
     82     int i,sum=0;
     83     for(i=0;i<len;i++)
     84         sum+=num[i];
     85     return sum%10;
     86 }
     87 
     88 int main()
     89 {
     90  //   freopen("in.txt","r",stdin);
     91     int i,j;
     92     scanf("%d",&T);
     93     while(T--)
     94     {
     95         scanf("%s",s);
     96         len=strlen(s);
     97         for(i=0;i<len;i++){
     98             num[len-i-1]=s[i]-'0';
     99         }
    100         add(num);
    101         while(isok(num)){
    102             add(num);
    103         }
    104 
    105         for(i=len-1;i>=0;i--)
    106             printf("%d",num[i]);
    107         putchar('
    ');
    108     }
    109     return 0;
    110 }
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  • 原文地址:https://www.cnblogs.com/zhsl/p/3209572.html
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