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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#692910#7781. Sheep Eat Wolvesblhxzjr#WA 0ms3688kbC++231.3kb2024-10-31 15:12:442024-10-31 15:12:50

Judging History

你现在查看的是最新测评结果

  • [2024-10-31 15:12:50]
  • 评测
  • 测评结果:WA
  • 用时:0ms
  • 内存:3688kb
  • [2024-10-31 15:12:44]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
signed main(){
	int x,y,q,p;
	cin >> x >> y >> p >> q;
	int flag=1;
	if(p>=x){
		cout << 1;
		return 0;
	}
	if(y>x+q){
		int cs=0;
		if(y>x+q+p){
			cout << -1;
			return 0;
		}
		else{
			int qf=-1;
			if(y!=x+q+p){
				int duo=y-x-q;
				int kong=p-duo;
				int lang=(kong+1)/2+duo;
				int yang=kong/2;
				int zuolang=y-lang,zuoyang=x-yang;
				lang=lang-min(lang,yang+q);
				yang=0;
				cs+=2;
				int cw=p-lang;
				if(zuolang==zuoyang+q){
					//先狼
					if(zuoyang>p){
						cs+=((zuoyang-p)*2+cw-1)/cw*2+1;
					}
					else cs++;
				}
				else{
					//先羊
					if(zuoyang>p){
						cs+=((zuoyang-p)*2-1+cw-1)/cw*2+1;
					}
					else cs++;
				}
//				cout << zuolang << " " << zuoyang << " " << p <<   " " << cw << "\n";
			}
			if(2*(x-p)>=p-q) qf=5;
			if(qf!=-1 && cs!=0){
				cout << min(qf,cs);
			}
			else if(qf!=-1){
				cout << qf;
			}
			else if(cs!=0){
				cout << cs;
			}
			else cout << -1;
		}
	}
	else{
		if(x+q>=y){
			//一次运走
			if(p>=x){
				cout << 1;
				return 0;
			}
			//一次运不走
			else{
				int duo=x+q-y;
				int zs=(y-duo)*2+duo;
				cout << (zs+p-1)/p;
				return 0;
			} 
		}
		else flag=0;
	}
	if(!flag) cout << -1; 
	return 0;
}

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3496kb

input:

4 4 3 1

output:

3

result:

ok 1 number(s): "3"

Test #2:

score: 0
Accepted
time: 0ms
memory: 3688kb

input:

3 5 2 0

output:

5

result:

ok 1 number(s): "5"

Test #3:

score: 0
Accepted
time: 0ms
memory: 3632kb

input:

2 5 1 1

output:

-1

result:

ok 1 number(s): "-1"

Test #4:

score: 0
Accepted
time: 0ms
memory: 3556kb

input:

1 1 1 0

output:

1

result:

ok 1 number(s): "1"

Test #5:

score: -100
Wrong Answer
time: 0ms
memory: 3632kb

input:

3 3 1 1

output:

5

result:

wrong answer 1st numbers differ - expected: '7', found: '5'