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QOJ
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 |
---|---|---|---|---|---|---|---|---|---|
#744621 | #7781. Sheep Eat Wolves | coolarec | RE | 120ms | 22352kb | C++20 | 2.1kb | 2024-11-13 22:38:16 | 2024-11-13 22:38:17 |
Judging History
answer
#include<bits/stdc++.h>
#define int long long
#define endl '\n'
using namespace std;
int n,m,p,q;
int cnt=0;
int id[105][105][2];
int getid(int x,int y,int op)
{
if(!id[x][y][op]) id[x][y][op]=++cnt;
return id[x][y][op];
}
void solve()
{
cin>>n>>m>>p>>q;
vector<int> e[101*101*2];
for(int i=0;i<=n;i++)//i j 都是左
{
for(int j=0;j<=m;j++)
{
// if(j-i>p && i!=0) continue;
if((m-j)-(n-i)>q && n-i!=0) continue;
for(int k=0;k<=n;k++)//k l 都是右
{
for(int l=0;l<=m;l++)
{
// if(i+k!=n || j+l!=m) continue;
// if(l-k>q && l!=0) continue;
// if((m-l)-(n-k)>p && n-k!=0) continue;
int sheep=k-(n-i),wolf=l-(m-j);//船上羊的数量 狼的数量
// if(i==4 && j==4 && k==2 && l==1) cout<<sheep<<' '<<wolf<<endl;
if(sheep<0 || wolf<0) continue;
if(sheep+wolf>p) continue;
if(j-wolf-(i-sheep)>q && i-sheep!=0) continue;
// cout<<i<<' '<<j<<' '<<k<<' '<<l<<endl;
// if(i==4 && j==4) cout<<k<<' '<<l<<endl;
e[getid(i,j,0)].push_back(getid(k,l,1));
e[getid(i,j,1)].push_back(getid(k,l,0));
}
}
}
}
queue<int> q;
q.push(getid(n,m,0));
vector<int> dis(101*101*2);
dis[getid(n,m,0)]=1;
while(q.size())
{
auto u=q.front();q.pop();
// cout<<x<<' '<<y<<' '<<op<<endl;
// cout<<u<<endl;
for(auto v:e[u])
{
if(dis[v]) continue;
dis[v]=dis[u]+1;
q.push(v);
}
}
int ans=1e18;
for(int i=0;i<=m;i++)
{
int tmp=dis[getid(n,i,1)];
// cout<<n<<' '<<i<<' '<<tmp<<endl;
if(tmp) ans=min(tmp,ans);
}
if(ans==1e18) cout<<-1<<endl;
else cout<<ans-1<<endl;
}
signed main()
{
cin.tie(0)->sync_with_stdio(0);
int t=1;
while(t--) solve();
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 1ms
memory: 4044kb
input:
4 4 3 1
output:
3
result:
ok 1 number(s): "3"
Test #2:
score: 0
Accepted
time: 0ms
memory: 4348kb
input:
3 5 2 0
output:
5
result:
ok 1 number(s): "5"
Test #3:
score: 0
Accepted
time: 1ms
memory: 4036kb
input:
2 5 1 1
output:
-1
result:
ok 1 number(s): "-1"
Test #4:
score: 0
Accepted
time: 1ms
memory: 4040kb
input:
1 1 1 0
output:
1
result:
ok 1 number(s): "1"
Test #5:
score: 0
Accepted
time: 1ms
memory: 4100kb
input:
3 3 1 1
output:
7
result:
ok 1 number(s): "7"
Test #6:
score: 0
Accepted
time: 1ms
memory: 4004kb
input:
3 3 2 1
output:
3
result:
ok 1 number(s): "3"
Test #7:
score: 0
Accepted
time: 1ms
memory: 4368kb
input:
10 9 1 10
output:
19
result:
ok 1 number(s): "19"
Test #8:
score: 0
Accepted
time: 1ms
memory: 4140kb
input:
15 20 2 5
output:
27
result:
ok 1 number(s): "27"
Test #9:
score: 0
Accepted
time: 0ms
memory: 4192kb
input:
18 40 16 7
output:
5
result:
ok 1 number(s): "5"
Test #10:
score: 0
Accepted
time: 9ms
memory: 4476kb
input:
60 60 8 1
output:
27
result:
ok 1 number(s): "27"
Test #11:
score: 0
Accepted
time: 10ms
memory: 4848kb
input:
60 60 8 4
output:
27
result:
ok 1 number(s): "27"
Test #12:
score: 0
Accepted
time: 7ms
memory: 5240kb
input:
60 60 8 8
output:
25
result:
ok 1 number(s): "25"
Test #13:
score: 0
Accepted
time: 10ms
memory: 5676kb
input:
60 60 16 1
output:
13
result:
ok 1 number(s): "13"
Test #14:
score: 0
Accepted
time: 13ms
memory: 7872kb
input:
60 60 16 8
output:
11
result:
ok 1 number(s): "11"
Test #15:
score: 0
Accepted
time: 17ms
memory: 10440kb
input:
60 60 16 16
output:
11
result:
ok 1 number(s): "11"
Test #16:
score: 0
Accepted
time: 21ms
memory: 12560kb
input:
60 60 16 24
output:
9
result:
ok 1 number(s): "9"
Test #17:
score: 0
Accepted
time: 2ms
memory: 4476kb
input:
75 15 1 1
output:
175
result:
ok 1 number(s): "175"
Test #18:
score: 0
Accepted
time: 5ms
memory: 4156kb
input:
50 100 1 0
output:
-1
result:
ok 1 number(s): "-1"
Test #19:
score: 0
Accepted
time: 64ms
memory: 7904kb
input:
100 100 10 10
output:
35
result:
ok 1 number(s): "35"
Test #20:
score: 0
Accepted
time: 57ms
memory: 5116kb
input:
100 100 10 1
output:
37
result:
ok 1 number(s): "37"
Test #21:
score: 0
Accepted
time: 80ms
memory: 11420kb
input:
100 100 10 20
output:
33
result:
ok 1 number(s): "33"
Test #22:
score: 0
Accepted
time: 85ms
memory: 14072kb
input:
100 100 10 30
output:
31
result:
ok 1 number(s): "31"
Test #23:
score: 0
Accepted
time: 120ms
memory: 22352kb
input:
100 100 10 80
output:
21
result:
ok 1 number(s): "21"
Test #24:
score: -100
Runtime Error
input:
100 100 1 100