标签:etc ber math getc getch mat define std names
洛谷P1467 循环数 Runaround Numbers
1 #include <cstdio> 2 #include <cmath> 3 #include <cstdlib> 4 #include <cstring> 5 #include <iostream> 6 #include <iomanip> 7 #include <string> 8 #include <algorithm> 9 #define LL long long 10 #define For(i,j,k) for(int i=j;i<=k;i++) 11 #define Dow(i,j,k) for(int i=j;i>=k;i--) 12 using namespace std ; 13 14 const int N = 50011 ; 15 int n,len ; 16 int bit[11],flag[10] ; 17 18 inline int read() 19 { 20 int x = 0 , f = 1 ; 21 char ch = getchar() ; 22 while(ch<‘0‘||ch>‘9‘) { if(ch==‘-‘) f = -1 ; ch = getchar(); } 23 while(ch>=‘0‘&&ch<=‘9‘) { x = x * 10+ch-48 ; ch = getchar(); } 24 return x * f ; 25 } 26 27 inline void add() 28 { 29 bit[0]+=1 ; 30 For(i,0,len-1) 31 if(bit[i]==10) bit[i]=0,bit[i+1]++ ; 32 else return ; 33 if(bit[len]) len++ ; 34 } 35 36 inline bool check() 37 { 38 int pos = 0,cnt = 0 ; 39 For(i,0,9) flag[i] = 0 ; 40 For(i,0,len-1) flag[bit[i]]++ ; 41 For(i,1,9) if(flag[i]>1) return 0 ; 42 if(flag[0]) return 0 ; 43 For(i,0,9) flag[i] = 0 ; 44 45 For(i,0,(len-1)/2) swap(bit[i],bit[len-1-i]) ; 46 For(i,1,len) { 47 (pos+=bit[pos])%=len ; 48 if(!flag[bit[pos]]) cnt++ ; 49 flag[bit[pos]] = 1 ; 50 } 51 For(i,0,(len-1)/2) swap(bit[i],bit[len-1-i]) ; 52 if(cnt!=len) return 0 ; 53 if(pos) return 0 ; 54 return 1 ; 55 } 56 57 inline void write() 58 { 59 int ans = 0 ; 60 Dow(i,len-1,0) 61 (ans*=10)+=bit[i] ; 62 printf("%d\n",ans) ; 63 exit(0) ; 64 } 65 66 int main() 67 { 68 n = read() ; 69 if(n==0) bit[len++]=0 ; 70 while(n) { 71 bit[len++]=n%10 ; 72 n/=10 ; 73 } 74 while(1) { 75 add() ; 76 if(check()) write() ; 77 } 78 return 0 ; 79 }
标签:etc ber math getc getch mat define std names
原文地址:http://www.cnblogs.com/third2333/p/7622890.html