wenbao与cf010101001010101

小垃圾代码

 1 #include <bits/stdc++.h>
 2 using namespace std;
 3 #define ll  long long 
 4 ll a, b, c, d, x, ax, dx, flag = 0, num = 0;
 5 int main(){
 6     cin>>a>>b>>c>>d;
 7     // cout<<num<<endl;
 8      if( a == 0 && d == 0&&c==0&&b==0 ) { cout <<0 <<endl; return 0; } 
 9     for( int i = 1; ; i ++ ){
10         x = i * ( i - 1 ) / 2;
11         // cout<<x<<endl;
12         if( x == a ) ax = i, num ++; 
13         if( x == d ) dx = i, num ++;
14         if( num == 2 ) {flag=1;break; }
15         if( x > max( a, d ) ) break;
16     }
17      // cout<<num<<endl;
18     if( ! flag ) cout<<"Impossible"<<endl;
19     else{
20         if( a == 0 &&c==0&&b==0 ) ax = 0;
21         if( d == 0 &&c==0&&b==0) dx = 0;
22           // cout << ax << " " << dx << endl;
23         if( b + c == ax * dx ){
24             num = ax + dx;
25         while( num -- ){
26                 if( b >= dx ) { cout<<0; b -= dx; ax --; }
27                 else { cout<< 1; dx --; }
28             }
29         }
30         
31         else cout <<"Impossible" <<endl;
32     }
33 }

 

 

 

只有不断学习才能进步！

 

posted @ 2018-04-14 13:46  wenbao  阅读(73)  评论(0)  编辑  收藏  举报