제출 #851346

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
851346		vjudge1	Patkice (COCI20_patkice)	C++98	50 / 50	1 ms	600 KiB

patkice

#include <bits/stdc++.h>
using namespace std;
#define sp << " " << 
//#define int long long
#define vi vector<int>
#define pb push_back
#define F(xxx,yyy) for (int xxx=1;xxx<=yyy;xxx++)
const int N = 2e5+1;



void solve() {
	int n,m;
	cin >> n >> m;
	char grid[n+1][m+1];
	int px,py;
	F(i,n) {
		string s;
		cin >> s;
		F(j,m) {
			grid[i][j] = s[j-1];
			if (grid[i][j] == 'o') px = i,py = j;
		}
	}
	vector<char> dirs = {'E','W','N','S'};
	vi dx = {0,0,-1,1};
	vi dy = {1,-1,0,0};
	int steps = 1e9;
	string ans;
	char ans2;
	for (int i=0;i<4;i++) {
		int x = px+dx[i];
		int y = py+dy[i];
		if (!(x <= n && x >= 1 && y <=m &&  y >= 1)) continue;
		int haha = 0;
		while (grid[x][y] != '.') {
			haha++;
			if (grid[x][y] == '>') y++;
			else if (grid[x][y] == '<') y--;
			else if (grid[x][y] == '^') x--;
			else if (grid[x][y] == 'v') x++;
			else break;
		}
		if (grid[x][y] == 'x') {
			if (haha < steps || (haha == steps && ans2 > dirs[i])){
				steps = haha;
				ans = ":)\n";
				ans2 = dirs[i];
			}
		}
	}
	if (ans[1] == ')') cout << ans << ans2 << endl;
	else cout << ":(\n";
}    
 
 
 
                                
signed main() { 
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int t = 1;
    //cin >> t; 
    while (t --> 0) solve();
}
 
 
 

컴파일 시 표준 에러 (stderr) 메시지

patkice.cpp: In function 'void solve()':
patkice.cpp:45:39: warning: 'ans2' may be used uninitialized in this function [-Wmaybe-uninitialized]
   45 |    if (haha < steps || (haha == steps && ans2 > dirs[i])){
      |                        ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
patkice.cpp:32:18: warning: 'px' may be used uninitialized in this function [-Wmaybe-uninitialized]
   32 |   int x = px+dx[i];
      |                  ^
patkice.cpp:33:18: warning: 'py' may be used uninitialized in this function [-Wmaybe-uninitialized]
   33 |   int y = py+dy[i];
      |                  ^

• Subtask 1: 30 / 30
• Subtask 2: 20 / 20