http://acm.hust.edu.cn/vjudge/contest/view.action?cid=30506#problem/V
題意：從右向左，每一個位數，分別表示一個fibonacci數，1表示有，0表示沒有；求兩個數的和，同樣按照這種形式存儲
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#include<map>
#include<set>
#include<list>
#include<cmath>
#include<ctime>
#include<deque>
#include<stack>
#include<bitset>
#include<cstdio>
#include<vector>
#include<cstdlib>
#include<cstring>
#include<iomanip>
#include<numeric>
#include<sstream>
#include<utility>
#include<iostream>
#include<algorithm>
#include<functional>using namespace std ;
const int maxn = 110 ;
char f1[ maxn + 10 ] , f2[ maxn + 10] , f[ maxn + 10 ] ;void Swap( char a[ ] )
{int len = strlen( a ) ;char temp ;for( int i = 0 ; i < len / 2 ; ++ i ){temp = a[ i ] ;a[ i ] = a[ len - i - 1 ] ;a[ len - i - 1 ] = temp ;}
}int main()
{int Case = 0 ;while( scanf( "%s%s" , f1 , f2 ) != EOF ){int len1 = strlen( f1 ) ;int len2 = strlen( f2 ) ;int len = len1 > len2 ? len1 : len2 ;Swap( f1 ) ;Swap( f2 ) ;Case++ ;if( Case != 1 ){printf( "\n" ) ;}memset( f , '0' , sizeof( f ) ) ;for( int i = len1 ; i < maxn + 10 ; ++i ){f1[ i ] = '0' ;}for( int j = len2 ; j < maxn + 10; ++j ){f2[ j ] = '0' ;}for( int i = 0 ; i < len ; ++i ){f[ i ] = f1[ i ] + f2[ i ] - '0' ;}for( int i = 0 ; i < maxn ; ++i ){if( f[ i ] == '2' ){f[ i + 1 ] ++ ;f[ i ] = '0' ;if( i == 1 ){f[ i - 1 ]++ ;i -= 2 ;}else if( i > 1 ){f[ i - 2 ]++ ;i -= 3 ;}}}for( int i = maxn ; i >= 1 ; --i ){if( f[ i ] == '1' && f[ i - 1 ] == '1' ){f[ i ] = '0' ;f[ i - 1 ] = '0' ;f[ ++i ]++ ; i += 2 ;}}int i ;for( i = maxn ; i >= 0 && f[ i ] == '0' ; --i );{if( i == -1 ){printf( "0" ) ;}else{for( ; i >= 0 ; -- i ){printf( "%c" , f[ i ] ) ;}}printf( "\n" ) ;}}return 0;
}
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