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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#669429#8236. Snake Movefrankly6#WA 0ms7772kbC++173.1kb2024-10-23 18:35:232024-10-23 18:35:23

Judging History

你现在查看的是最新测评结果

  • [2024-10-23 18:35:23]
  • 评测
  • 测评结果:WA
  • 用时:0ms
  • 内存:7772kb
  • [2024-10-23 18:35:23]
  • 提交

answer

#include<iostream>
#include<cstdio>
#include<cstring>
#include<map>
#include<queue>
#include<bitset>
using namespace std;
typedef long double ld;
typedef unsigned long long ull;
typedef pair<int,int> PII;
const int MX=3030;
const int NX=100010;
const int inf=0x3fffffff;

int N, M, K;
int opx[NX], opy[NX];
int mp[MX][MX];
int ans[MX][MX], len[MX][MX];
bool vis[MX][MX];
int dx[5]={0,1,0,-1,0};
int dy[5]={0,0,1,0,-1};
int read()
{
    int r=0, f=1; char ch=getchar();
    while(ch<'0'||ch>'9') {if(ch=='-') f=-1; ch=getchar();}
    while(ch>='0'&&ch<='9') {r=r*10+ch-'0'; ch=getchar();}
    return r*f;
}
struct node
{
    int now;
    deque<PII> l;
    map<PII,bool> mp;
    // bool ix[NX], iy[NX];
}beg, one;
deque<node> q;
void bfs()
{
    while(!q.empty())
    {
        node p=q.front(); q.pop_front();
        auto [x,y]=p.l.front();
        auto [ex,ey]=p.l.back();
        // cout << "ans=" << ans[x][y] << '\n';
        ans[x][y]=min(ans[x][y],p.now);
        // if(1) cout << "p: x=" << x << ", y=" << y << ", ans=" << ans[x][y] << '\n';
        // if(1) {for(auto [ppx,ppy]:p.l) cout << ppx << "&" << ppy << " "; cout << '\n';}
        for(int i=1;i<=4;i++)
        {
            int nx=x+dx[i], ny=y+dy[i];
            // cout << "1/x=" << x << ", y=" << y << ", nx=" << nx << ", ny=" << ny << '\n';
            if(ans[nx][ny]<p.now+1||mp[nx][ny]==1) continue;
            // cout << "2/x=" << x << ", y=" << y << ", nx=" << nx << ", ny=" << ny << '\n';
            if(nx<=0||nx>N||ny<=0||ny>M) continue;
            // cout << "3/x=" << x << ", y=" << y << ", nx=" << nx << ", ny=" << ny << '\n';
            if(p.mp[{nx,ny}]==1&&(nx!=ex||ny!=ey)) continue;
            // cout << "4/x=" << x << ", y=" << y << ", nx=" << nx << ", ny=" << ny << '\n';
            // if(x==4&&y==3&&p.l.size()==5) cout << x << "&" << y << " " << nx << "&" << ny << ", len=" << p.l.size() << ", ans=" << p.now << '\n';
            node np=p;
            np.now=p.now+1;
            // cout << "ex=" << ex << ", ey=" << ey << '\n';
            np.mp[{ex,ey}]=0;
            // cout << "nx=" << nx << ", ny=" << ny << '\n';
            np.mp[{nx,ny}]=1;
            np.l.pop_back(); np.l.push_front({nx,ny});
            q.push_back(np);
        }
    }   
}
int main()
{
    // freopen("testdata.in","r",stdin);
    N=read(); M=read(); K=read();
    for(int i=1;i<=K;i++)
    {
        int x=read(), y=read();
        opx[i]=x, opy[i]=y;
        beg.now=K-i;
        beg.l.push_back({x,y});
        beg.mp[{x,y}]=1;
        if(abs(x-opx[1])+abs(y-opy[1])<=1||i==K) q.push_front(beg);
    }
    for(int i=1;i<=N;i++)
    {
        string s; cin >> s; s=" "+s;
        for(int j=1;j<=M;j++)
        {
            if(s[j]=='#') mp[i][j]=1;
            ans[i][j]=inf;
        }
    }
    bfs();
    ull sum=0;
    for(int i=1;i<=N;i++)
    {
        // cout << "i=" << i << '\n';
        for(int j=1;j<=M;j++)
        {
            cout << ans[i][j] << " ";
            if(ans[i][j]!=inf) sum+=ans[i][j]*ans[i][j];
        }
        cout << '\n';
    }
    cout << sum << '\n';
    return (0-0);
}

Details

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Test #1:

score: 0
Wrong Answer
time: 0ms
memory: 7772kb

input:

4 5 5
3 5
3 4
3 3
3 2
4 2
.....
.....
.....
.....

output:

6 5 4 3 2 
5 4 3 2 1 
6 5 4 4 0 
5 4 3 2 1 
293

result:

wrong answer 1st lines differ - expected: '293', found: '6 5 4 3 2 '