Submission #497994

#	Time	Username	Problem	Language	Result	Execution time	Memory
497994		nguyenanhkhoi	Zoo (COCI19_zoo)	C++17	0 / 110	1 ms	336 KiB

zoo

// Code by author: NAKCUAEBE

#pragma GCC optimize("O2")
#pragma GCC target("avx,avx2,fma")
#include<bits/stdc++.h>

/*#####DEFINE#####*/

#define faster ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
//#deinfe int long long
#define ii pair<int,int>
#define fi first
#define se second
#define vi vector<int>
#define vii vector<ii>
#define ll long long
#define fou(i,j,n) for(int i=(j);i<=(n);i++)
#define fod(i,j,n) for(int i=(j);i>=(n);i--)
#define MASK(i) (1LL<<(i))
#define BIT(x,i) (((x)>>(i))&1)
#define mod 1000000007
#define maxn 1005

using namespace std;

/*######FILE#####*/

#define NAKIUPTTM ""

void file()
{
	freopen(NAKIUPTTM".INP","r",stdin);
	freopen(NAKIUPTTM".OUT","w",stdout);
}

/*#####VARIABLE#####*/

int dx[]={-1,0,1,0};
int dy[]={0,-1,0,1};
int n,m;
char c;
int t[maxn][maxn];
bool dd[maxn][maxn];
int ans=0;

/*#####Starting code#####*/

void dfs(int x,int y,int parx,int pary,int now)
{
    dd[x][y]=1;
    //cout<<x<<' '<<y<<'\n';
    for(int i=0;i<4;i++)
    {
        int nx=x+dx[i];
        int ny=y+dy[i];
        if(nx<=0||nx>n||ny<=0||ny>m||(ny==pary&&nx==parx)||dd[nx][ny]||t[nx][ny]!=now)continue;
        dfs(nx,ny,x,y,now);
    }
}

void solve()
{
    cin>>n>>m;
    for(int i=1;i<=n;i++)
        for(int j=1;j<=m;j++)
        {
            cin>>c;
            if(c=='*')t[i][j]=2;
            if(c=='T')t[i][j]=1;
        }
    for(int i=1;i<=n;i++)
        for(int j=1;j<=m;j++)if(!dd[i][j]&&t[i][j]!=2)dfs(i,j,-1,-1,t[i][j]),ans++;
        cout<<ans;
}

int main()
{
	faster;

	//file();

	ll t=1;
	//cin>>t;
	while(t--)
	{
		solve();
	}

	return 0;
}

Compilation message (stderr)

zoo.cpp: In function 'void solve()':
zoo.cpp:71:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   71 |     for(int i=1;i<=n;i++)
      |     ^~~
zoo.cpp:73:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   73 |         cout<<ans;
      |         ^~~~
zoo.cpp: In function 'void file()':
zoo.cpp:32:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   32 |  freopen(NAKIUPTTM".INP","r",stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
zoo.cpp:33:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   33 |  freopen(NAKIUPTTM".OUT","w",stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 45
• Subtask 2: 0 / 65