제출 #340089

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
340089		Hazem	Emacs (COCI20_emacs)	C++14	50 / 50	1 ms	876 KiB

emacs

/*
ID: tmhazem1
LANG: C++14
TASK: pprime
*/

#include <bits/stdc++.h>
using namespace std;

#define S second
#define F first
#define LL long long
const int N = 3e3 + 10;


LL LINF = 100000000000000000;
LL INF = 1000000000;

string s[N];
bool vis[N][N];

int x[]={1,-1,0,0};
int y[]={0,0,1,-1};
int n,m;

int dfs(int i,int j){

    if(vis[i][j]||s[i][j]=='.')return 0;
    vis[i][j] = 1;

    for(int k=0;k<4;k++){
        int i1 = i+x[k],j1 = j+y[k];
        if(i1>=1&&j1>=0&&i1<=n&&j1<m)
        dfs(i1,j1);
    }
    return 1;
}

int main()
{
    //freopen("out.txt","w",stdout);
    scanf("%d%d",&n,&m);

    for(int i=1;i<=n;i++)
        cin>>s[i];

    int ans = 0;
    for(int i=1;i<=n;i++)
        for(int j=0;j<m;j++)
        ans += dfs(i,j);    

    printf("%d\n",ans);
}       

컴파일 시 표준 에러 (stderr) 메시지

emacs.cpp: In function 'int main()':
emacs.cpp:42:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   42 |     scanf("%d%d",&n,&m);
      |     ~~~~~^~~~~~~~~~~~~~

• Subtask 1: 50 / 50