CodeForces-1244C-The Football Season如何巧妙解决比赛胜负问题?
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本文共计1139个文字,预计阅读时间需要5分钟。
The football season has just concluded in Berland. Each match is played between two teams, with the result being a draw or a win for one of the teams.
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
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
You have to determine three integers
Input
The first line contains four integers
Output
If there is no answer, print
Otherwise print three non-negative integers
x ⋅ w + y ⋅ d = p ">x⋅w+y⋅d=px⋅w+y⋅d=p,x + y + z = n ">x+y+z=nx+y+z=n.
Examples
Input30 60 3 1 Output
17 9 4 Input
10 51 5 4 Output
-1 Input
20 0 15 5 Output
0 0 20
Note
One of the possible answers in the first example —
In the second example the maximum possible score is
In the third example the team got
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 }
本文共计1139个文字,预计阅读时间需要5分钟。
The football season has just concluded in Berland. Each match is played between two teams, with the result being a draw or a win for one of the teams.
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
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
You have to determine three integers
Input
The first line contains four integers
Output
If there is no answer, print
Otherwise print three non-negative integers
x ⋅ w + y ⋅ d = p ">x⋅w+y⋅d=px⋅w+y⋅d=p,x + y + z = n ">x+y+z=nx+y+z=n.
Examples
Input30 60 3 1 Output
17 9 4 Input
10 51 5 4 Output
-1 Input
20 0 15 5 Output
0 0 20
Note
One of the possible answers in the first example —
In the second example the maximum possible score is
In the third example the team got
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 }

