Submission #209980

#	Time	Username	Problem	Language	Result	Execution time	Memory
209980		SamAnd	Emacs (COCI20_emacs)	C++17	50 / 50	5 ms	404 KiB

emacs

#include <bits/stdc++.h>
using namespace std;
const int N = 102;
const int xx[4] = {0, 1, 0, -1};
const int yy[4] = {1, 0, -1, 0};

int n, m;
char a[N][N];

bool c[N][N];

void dfs(int x, int y)
{
    if (c[x][y])
        return;
    c[x][y] = true;
    for (int i = 0; i < 4; ++i)
    {
        int hx = x + xx[i];
        int hy = y + yy[i];
        if (hx >= 0 && hx < n && hy >= 0 && hy < m && a[hx][hy] == '*')
            dfs(hx, hy);
    }
}

int main()
{
    scanf("%d%d", &n, &m);
    for (int i = 0; i < n; ++i)
        scanf(" %s", a[i]);
    int ans = 0;
    for (int i = 0; i < n; ++i)
    {
        for (int j = 0; j < m; ++j)
        {
            if (a[i][j] == '*' && !c[i][j])
            {
                ++ans;
                dfs(i, j);
            }
        }
    }
    printf("%d\n", ans);
    return 0;
}

Compilation message (stderr)

emacs.cpp: In function 'int main()':
emacs.cpp:28:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~
emacs.cpp:30:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf(" %s", a[i]);
         ~~~~~^~~~~~~~~~~~~

• Subtask 1: 50 / 50