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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#605659 | #7733. Cool, It’s Yesterday Four Times More | Godwang | RE | 9ms | 6156kb | C++23 | 7.5kb | 2024-10-02 18:21:44 | 2024-10-02 18:21:49 |
Judging History
answer
#include <iostream>
using namespace std;
#include <set>
#include <algorithm>
#include <cmath>
#include <map>
#include <cstdio>
#include <string>
#include <cstring>
#include <string.h>
#include <stdlib.h>
#include <iomanip>
#include <fstream>
#include <stdio.h>
#include <stack>
#include <queue>
#include <ctype.h>
#include <vector>
#include <random>
#include<list>
#define ll long long
#define ull unsigned long long
#define pb push_back
#define rep(i, a, n) for (int i = a; i <= n; i++)
#define per(i, a, n) for (int i = n; i >= a; i--)
#define pii pair<int, int>
#define pli pair<ll, int>
#define pil pair<int, ll>
#define pll pair<ll, ll>
#define lowbit(x) ((x)&(-x))
ll extend_gcd(ll a, ll b, ll &x, ll &y)
{
if (b == 0)
{
x = 1;
y = 0;
return a;
}
ll d = extend_gcd(b, a % b, y, x);
y -= a / b * x;
return d;
}
ll fastpow(ll a, ll n, ll mod)
{
ll ans = 1;
a %= mod;
while (n)
{
if (n & 1)
ans = (ans * a) % mod; //% mod
a = (a * a) % mod; //% mod
n >>= 1;
}
return ans;
}
inline void write(__int128 x)
{
if (x > 9)
{
write(x / 10);
}
putchar(x % 10 + '0');
}
__int128 sqrt(__int128 m)
{
__int128 leftt = 0, rightt = ((__int128)1) << 51, ret = -1, mid;
while (leftt < rightt)
{
mid = (leftt + rightt) / 2;
if (mid * mid > m)
{
rightt = mid;
}
else
{
leftt = mid + 1;
ret = mid;
}
}
return ret;
}
const double eps = 1e-6;
int sgn(double x)
{
if(fabs(x)<eps)
{
return 0;
}
else return x<0?-1:1;
}
struct Point
{
double x,y;
Point()
{
}
Point(double x,double y):x(x),y(y)
{
}
Point operator + (Point B)
{
return Point(x+B.x,y+B.y);
}
Point operator - (Point B)
{
return Point(x-B.x,y-B.y);
}
bool operator == (Point B)
{
return sgn(x-B.x)==0&&sgn(y-B.y)==0;
}
bool operator < (Point B)
{
return sgn(x-B.x)<0||(sgn(x-B.x)==0&&sgn(y-B.y)<0);
}
};
typedef Point Vector;
double Cross(Vector A,Vector B)//叉积
{
return A.x*B.y-A.y*B.x;
}
double Distance(Point A,Point B)
{
return hypot(A.x-B.x,A.y-B.y);
}
int Convex_hull(Point *p,int n,Point *ch)
{
n=unique(p,p+n)-p;
sort(p,p+n);
int v=0;
for(int i=0;i<n;i++)
{
while (v>1&&sgn(Cross(ch[v-1]-ch[v-2],p[i]-ch[v-1]))<=0)
{
v--;
}
ch[v++]=p[i];
}
int j=v;
for(int i=n-2;i>=0;i--)
{
while (v>j&&sgn(Cross(ch[v-1]-ch[v-2],p[i]-ch[v-1]))<=0)
{
v--;
}
ch[v++]=p[i];
}
if(n>1)
{
v--;
}
return v;
}
int kmp(string s, string p)
{
int ans = 0, lastt = -1;
int lenp = p.size();
vector<int > Next(lenp+3,0);
rep(i, 1, lenp - 1)
{
int j = Next[i];
while (j && p[j] != p[i])
{
j = Next[j];
}
if (p[j] == p[i])
{
Next[i + 1] = j + 1;
}
else
{
Next[i + 1] = 0;
}
}
int lens = s.size();
int j = 0;
rep(i, 0, lens - 1)
{
while (j && s[i] != p[j])
{
j = Next[j];
}
if (s[i] == p[j])
{
j++;
}
if (j == lenp)
{
ans++;
}
}
return ans;
}
int dir[4][2] =
{
{-1, 0}, {0, 1}, {1, 0}, {0, -1}}; // 左右上下
// int dir[8][2]={
// {-1, 0}, {0, 1}, {1, 0}, {0, -1},{-1,-1},{-1,1},{1,-1},{1,1}
// };
#define endl '\n'//交互题请删除本行
const ll inf = 1000000000000000000ll;
const ll mod1 = 998244353ll, P1 = 131, mod2 = 1e9 + 7ll, P2 = 13331;
ll inverse(ll x)
{
return fastpow(x,mod1-2,mod1);
}
const int N = 1e4 + 10, M = 2e6 + 10;
///////////////////////////////////
int tt;
int n,m;
string s[N];
int win[M];
bool vis[M];
//map<node,bool > ma;
int ans;
int son;
queue<vector<int > > q;
bool flag;
///////////////////////////////////
ll get(int i,int j,int ii,int jj)
{
return i*(m+1)*(n+1)*(m+1)+j*(n+1)*(m+1)+ii*(m+1)+jj;
}
void dfs(int i,int j,int ii,int jj)
{
//
// cout<<i<<" "<<j<<" "<<ii<<" "<<jj<<endl;
if(i<1||i>n||j<1||j>m||s[i][j]=='O')
{
return;
}
if(s[i][j]=='.'&&( (ii<1||ii>n||jj<1||jj>m) )|| s[ii][jj]=='O' )
{
flag=1;
//
if(flag)
{
//
}
return;
}
if(vis[get(i,j,ii,jj)])
{
return;
}
//
vis[get(i,j,ii,jj)]=1;
vector<int > v;
v.pb(i);
v.pb(j);
v.pb(ii);
v.pb(jj);
q.push(v);
rep(k,0,3)
{
int x1=i+dir[k][0],y1=j+dir[k][1],x2=ii+dir[k][0],y2=jj+dir[k][1];
//
//cout<<dir[i][0]<<" "<<dir[i][1]<<endl;
dfs(x1,y1,x2,y2);
}
}
///////////////////////////////////
void init()
{
ans=0;
son=0;
rep(i,1,(n+3)*(m+1)*(n+1)*(m+1))
{
win[i]=0;
vis[i]=0;
}
}
///////////////////////////////////
int main()
{
ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);//交互题请删除本行
// freopen("ain.txt", "r", stdin); freopen("aout.txt", "w", stdout);
cin>>tt;
while (tt--)
{
cin>>n>>m;
init();
rep(i,1,n)
{
cin>>s[i];
s[i]=' '+s[i];
rep(j,1,m)
{
if(s[i][j]=='.')
{
son++;
}
}
}
rep(i,1,n)
{
rep(j,1,m)
{
if(s[i][j]=='O')
{
continue;
}
int ok=0;
rep(ii,1,n)
{
rep(jj,1,m)
{
if(s[ii][jj]=='O'||ii==i&&jj==j)
{
continue;
}
flag=0;
if(vis[get(i,j,ii,jj)])
{
if(win[get(i,j,ii,jj)])
{
ok++;
}
continue;
}
dfs(i,j,ii,jj);
while (q.size())
{
vector<int > arr=q.front();
q.pop();
win[get(arr[0],arr[1],arr[2],arr[3])]=flag;
}
//
if(win[get(i,j,ii,jj)])
{
// cout<<i<<" "<<j<<" "<<ii<<" "<<jj<<" OK"<<endl;
ok++;
}
}
}
if(ok+1==son)
{
ans++;
}
}
}
cout<<ans<<endl;
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 1ms
memory: 5996kb
input:
4 2 5 .OO.. O..O. 1 3 O.O 1 3 .O. 2 3 OOO OOO
output:
3 1 0 0
result:
ok 4 lines
Test #2:
score: 0
Accepted
time: 2ms
memory: 5988kb
input:
200 2 4 OOO. OO.. 2 3 OOO .O. 3 3 O.O OOO OO. 4 1 . . O O 1 2 .O 1 1 . 2 5 .OO.. .O.O. 2 1 O O 1 1 O 1 3 .OO 5 1 O O . O . 5 2 O. .. O. .O .. 5 3 ... ... .OO ..O OOO 3 5 ..O.O .O.O. .OO.O 5 2 .O OO O. O. .. 2 1 O O 3 5 .O.OO O...O ..OO. 1 5 ..... 5 1 O . O . . 5 3 OOO OO. .OO OO. O.O 2 1 O . 5 2 O. ...
output:
3 0 0 2 1 1 3 0 0 1 0 7 9 4 4 0 6 5 2 0 1 6 4 5 2 0 0 5 3 3 1 4 1 0 7 5 2 3 7 3 0 6 2 2 2 0 4 6 6 3 3 2 3 5 2 1 0 3 3 4 4 2 2 0 7 6 4 8 5 3 2 5 2 1 2 1 4 0 0 2 5 1 4 6 6 1 6 2 2 3 4 5 2 1 0 1 9 3 4 11 0 3 2 1 0 0 4 3 1 4 3 8 3 0 3 6 2 5 1 3 3 4 0 2 11 2 2 4 0 4 4 6 2 1 2 3 0 5 0 16 4 3 2 6 0 8 3 3 1...
result:
ok 200 lines
Test #3:
score: 0
Accepted
time: 9ms
memory: 6156kb
input:
50 10 9 OOOO.O... O...O.OOO .....O... ..OO..O.O ...O..O.O ..OOO..O. ..OOO...O .OO.O..OO .O.O.OO.. .O..O.O.O 10 10 .O.OOO.OO. ...OOOOOOO ...O.O..O. .O.O..O... .O.O.OO..O ..OO.O..OO O....O..OO OO...OOOOO OO.OO.O..O .O.O.OOOOO 10 8 O..OOO.O O.OOOO.. O..OO.OO OO..OO.. .OOO..O. .OO.OO.O OOO..OO. ..O..OO....
output:
31 40 13 25 40 37 27 29 20 26 25 29 21 29 21 31 32 31 33 34 25 31 18 25 41 28 20 45 20 29 18 21 27 28 35 13 20 17 32 29 28 23 23 23 24 18 28 17 35 24
result:
ok 50 lines
Test #4:
score: -100
Runtime Error
input:
5 1 1000 ....O..OO..O..O..OO...OOO.OOOO.O...O....OOOOO.....OO..OOOO.O..O....OOOO..OO..OOOO......O.O.O..O..OO.OO.OO.O....O.O.O.O.O.OO..O.O.OO..O..OO..O.OOO...O...O.O.O..O....O.OO...O..O...O.OOO..OO.O..O.OO.O.O..OOOO..O.OO.O.O....O.OO.......OOOO....O.O.O.O..OOO.O.OO.OOO..O...O.O.O.O.OO.O.OOOO...O.OO.....