oj.uz

Submission #440527

# Submission time Handle Problem Language Result Execution time Memory
440527 2021-07-02T11:25:03 Z zarif Emacs (COCI20_emacs) C++17
50 / 50
 1 ms 460 KB 
#include <bits/stdc++.h>
using namespace std;
void __print(int x) { cerr << x; }
void __print(long x) { cerr << x; }
void __print(long long x) { cerr << x; }
void __print(unsigned x) { cerr << x; }
void __print(unsigned long x) { cerr << x; }
void __print(unsigned long long x) { cerr << x; }
void __print(float x) { cerr << x; }
void __print(double x) { cerr << x; }
void __print(long double x) { cerr << x; }
void __print(char x) { cerr << '\'' << x << '\''; }
void __print(const char *x) { cerr << '\"' << x << '\"'; }
void __print(const string &x) { cerr << '\"' << x << '\"'; }
void __print(bool x) { cerr << (x ? "true" : "false"); }

template <typename T, typename V>
void __print(const pair<T, V> &x)
{
    cerr << '{';
    __print(x.first);
    cerr << ',';
    __print(x.second);
    cerr << '}';
}
template <typename T>
void __print(const T &x)
{
    int f = 0;
    cerr << '{';
    for (auto &i : x)
        cerr << (f++ ? "," : ""), __print(i);
    cerr << "}";
}
void _print() { cerr << "]\n"; }
template <typename T, typename... V>
void _print(T t, V... v)
{
    __print(t);
    if (sizeof...(v))
        cerr << ", ";
    _print(v...);
}
#ifndef ONLINE_JUDGE
#define debug(x...)               \
    cerr << "[" << #x << "] = ["; \
    _print(x)
#else
#define debug(x...)
#endif
void setIO(string s)
{
    freopen((s + ".in").c_str(), "r", stdin);
    freopen((s + ".out").c_str(), "w", stdout);
}
bool arr[101][101];
int cnt=0;
int n,m;
bool visited[101][101];
void dfs(int i,int j){
	visited[i][j]=1;
	if(i>0){
		if(!visited[i-1][j]&&arr[i-1][j]){
			dfs(i-1,j);
		}
	}
	if(i+1<n){
		if(!visited[i+1][j]&&arr[i+1][j]){
			dfs(i+1,j);
		}
	}
	if(j>0){
		if(!visited[i][j-1]&&arr[i][j-1]){
			dfs(i,j-1);
		}
	}
	if(j+1<m){
		if(!visited[i][j+1]&&arr[i][j+1]){
			dfs(i,j+1);
		}
	}
}
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
	cin >> n >> m;
	for(int i=0;i<n;i++){
		for(int j=0;j<m;j++){
			char c;
			cin >> c;
			if(c=='*'){
				arr[i][j]=1;
		}
	 }
  }
    for(int i=0;i<n;i++){
		for(int j=0;j<m;j++){
			if(arr[i][j]&&!visited[i][j]){
				dfs(i,j);
		        cnt++;
			}
		}
	}
	cout << cnt <<endl;
}

Compilation message

emacs.cpp: In function 'void setIO(std::string)':
emacs.cpp:53:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   53 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
emacs.cpp:54:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   54 |     freopen((s + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 460 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 332 KB Output is correct