CodeForces-1244C-The Football Season-思维

标签：opp   rmi   force   point   can   cond   contains   ash   you   

The football season has just ended in Berland. According to the rules of Berland football, each match is played between two teams. The result of each match is either a draw, or a victory of one of the playing teams. If a team wins the match, it gets ww points, and the opposing team gets 00 points. If the game results in a draw, both teams get dd points.

The manager of the Berland capital team wants to summarize the results of the season, but, unfortunately, all information about the results of each match is lost. The manager only knows that the team has played nn games and got pp points for them.

You have to determine three integers xx, yy and zz — the number of wins, draws and loses of the team. If there are multiple answers, print any of them. If there is no suitable triple (x,y,z)(x,y,z), report about it.

Input

The first line contains four integers nn, pp, ww and dd (1≤n≤1012,0≤p≤1017,1≤d<w≤105)(1≤n≤1012,0≤p≤1017,1≤d<w≤105) — the number of games, the number of points the team got, the number of points awarded for winning a match, and the number of points awarded for a draw, respectively. Note that w>dw>d, so the number of points awarded for winning is strictly greater than the number of points awarded for draw.

Output

If there is no answer, print −1−1.

Otherwise print three non-negative integers xx, yy and zz — the number of wins, draws and losses of the team. If there are multiple possible triples (x,y,z)(x,y,z), print any of them. The numbers should meet the following conditions:

• x⋅w+y⋅d=px⋅w+y⋅d=p,
• x+y+z=nx+y+z=n.

Examples

30 60 3 1

17 9 4

10 51 5 4

-1

20 0 15 5

0 0 20

Note

One of the possible answers in the first example — 1717 wins, 99 draws and 44 losses. Then the team got 17⋅3+9⋅1=6017⋅3+9⋅1=60 points in 17+9+4=3017+9+4=30 games.

In the second example the maximum possible score is 10⋅5=5010⋅5=50. Since p=51p=51, there is no answer.

In the third example the team got 00 points, so all 2020 games were lost.

 1 #include<stdio.h>
 2 #include<algorithm>
 3 #include<string.h>
 4 using namespace std;
 5 typedef long long ll;
 6 
 7 int main()
 8 {
 9     ll n,p,w,d;
10     scanf("%lld %lld %lld %lld",&n,&p,&w,&d);
11     if(n*w<p)
12         printf("-1\n");
13     else if(n*w>=p)
14     {
15         if(n*w==p)
16         {
17             printf("%lld 0 0\n",n);
18         }
19         else if(n*w>p)
20         {
21             ll x=p/w;
22             ll q=p%w;;
23             if(q%d==0)
24             {
25                 ll y=q/d;
26                 if(x+y<=n)
27                     printf("%lld %lld %lld",x,y,n-x-y);
28                 else
29                     printf("-1\n");
30             }
31             else if(q%d!=0)//说明需要从赢的局数点里面分出一部分点进行补充然后给到平局d
32             {
33                 //需要求（q+wi）%d==0
34                 int flag=0;
35                 for(int i=1; i<=min(x,d); i++)
36                 {
37                     if((q+w*i)%d==0)
38                     {
39                         ll xx=x-i;
40                         ll yy=(q+w*i)/d;
41                         ll zz=n-xx-(q+w*i)/d;
42                         if(xx+yy+zz<=n)
43                         {
44                             flag=1;
45                             printf("%lld %lld %lld\n",xx,yy,zz);
46                         }
47                         else
48                             printf("-1\n");
49                         break;
50                     }
51                 }
52                 if(!flag)
53                     printf("-1\n");
54             }
55         }
56     }
57     return 0;
58 }

CodeForces-1244C-The Football Season-思维

标签：opp   rmi   force   point   can   cond   contains   ash   you   

原文地址：https://www.cnblogs.com/OFSHK/p/11702732.html