QOJ.ac

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
#499613	#6723. Grid with Arrows	buzhijingdi	WA	85ms	10788kb	C++14	2.0kb	2024-07-31 16:19:26	2024-07-31 16:19:26

Judging History

你现在查看的是最新测评结果

[2024-07-31 16:19:26]
评测

测评结果：WA
用时：85ms
内存：10788kb

查看

[2024-07-31 16:19:26]
提交

answer

#include <bits/stdc++.h>
using namespace std;
#define ll long long
const int N = 2e6 + 9;
const int M = 1e3 + 9;
const int mod = 1e9 + 7;
#define eps 1e-5
#define inf 2e18

int n,m; 
int fa[N];
int find(int x)
{
    return fa[x]=(fa[x]==x?x:find(fa[x]));
}
bool check(int x,int y)
{
    return x>=1 && y>=1 && x<=n && y<=m;
}

void dfs(int x,int y,vector<vector<char>> &s, vector<vector<int>> &a)
{
    int px=x,py=y;//pre

    if(s[x][y]=='u')  x -= a[x][y];
    else if(s[x][y]=='d') x += a[x][y];
    else if(s[x][y]=='l') y -= a[x][y];
    else if(s[x][y]=='r') y += a[x][y];
    
    if(check(x,y))
    {
        int fx=find((px - 1) * m + py),fy = find((x - 1) * m + y);
        if(fx != fy)
        {
            fa[fy] = fx;
            dfs(x,y,s,a);
        }
    }
}
void solve()
{
    cin>>n>>m;
    for(int i=1;i<= (n-1) * m + m + 10; i++) fa[i]=i;

    vector<vector<int>> p(n+10);
    vector<vector<char>> s(n+10);
    for(int i=1;i<=n;i++)
    {
        p[i].resize(m+10);
        s[i].resize(m+10);
    }


    int sum=0;
    for(int i=1;i<=n;++i)
        for(int j=1;j<=m;++j)   cin>>s[i][j];
        
    for(int i=1;i<=n;++i)
        for(int j=1;j<=m;++j)    cin>>p[i][j];

    for(int i=1;i<=n;i++)
        for(int j=1;j<=m;j++) dfs(i,j,s,p);

    int cnt=0;
    for(int i=1;i<=n*m;++i) if(fa[i]==i) cnt++;
    if(cnt>=2) 
    {
        cout<<"No"<<'\n';
        return ;
    }


    int rt=find(1);
    //cout<<"  "<<rt<<'\n';
    for(int i=1;i<=n;i++)
        for(int j=1;j<=m;j++)
            if(find((i-1)*m+j) != rt)
            {
                cout<<"No"<<'\n';
                return;
            }
    
    cout<<"Yes"<<'\n';
}
int main()
{
    ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
    int _ = 1;  cin>>_;
    while (_--) solve();
    return 0;
}
/*
2
3 4
drrd
ruld
udrl
1 1 1 1
2 1 1 1
2 100 1 1
3 4
drrd
ruld
udll
1 1 1 1
2 1 1 1
2 100 1 1
*/

源文件, 语言: C++14

詳細信息

Test #1:

score: 100

Accepted

time: 0ms

memory: 3792kb

input:

2
2 3
rdd
url
2 1 1
1 1 2
2 2
rr
rr
1 1
1 1

output:

Yes
No

result:

ok 2 token(s): yes count is 1, no count is 1

Test #2:

score: -100

Wrong Answer

time: 85ms

memory: 10788kb

input:

1109
5 8
rddddldl
drruludl
rrldrurd
urrrlluu
uurrulrl
4 4 1 2 4 3 1 6
1 3 5 1 1 1 3 6
2 4 1 1 2 1 1 1
2 3 4 2 4 3 3 3
4 1 1 2 2 5 1 5
7 9
rdrddrdll
urrdruldl
ruullrulu
drrlrlddl
rrrdddlll
ruulururl
ruurrlluu
7 1 1 1 2 1 2 3 6
1 7 3 1 3 1 2 1 8
2 2 1 2 4 3 1 2 2
2 2 4 1 1 5 3 3 1
3 4 6 1 2 1 2 7 7
6 ...

output:

Yes
No
No
No
Yes
No
Yes
Yes
Yes
Yes
No
No
No
Yes
Yes
No
Yes
No
Yes
No
No
No
Yes
Yes
No
Yes
Yes
No
Yes
No
No
Yes
No
No
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Yes
No
Yes
No
Yes
Yes
No
Yes
No
Yes
No
Yes
Yes
No
No
Yes
No
Yes
Yes
Yes
Yes
No
Yes
Yes
No
Yes
Yes
No
No
Yes
Yes
No
No
Yes
Yes
No
No
Yes
Yes
Yes
Yes
...

result:

wrong answer expected NO, found YES [43rd token]