Submission #550474

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
550474	2022-04-18 09:15:08	Jomnoi	Mecho (IOI09_mecho)	C++17	100 / 100	182 ms	6332 KiB

mecho

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#include <bits/stdc++.h>
#define DEBUG false
using namespace std;
const int MAX_N = 810;
const int INF = 1e9 + 7;
const int d[4][2] = {{1, 0}, {0, 1}, {-1, 0}, {0, -1}};
char s[MAX_N][MAX_N];
int db[MAX_N][MAX_N], dm[MAX_N][MAX_N];
int main() {
    cin.tie(nullptr)->sync_with_stdio(false);
    int N, S;
    cin >> N >> S;
    for(int i = 1; i <= N; i++) {
        cin >> (s[i] + 1);
    }
    int sx, sy, ex, ey;
    queue <pair <int, int>> q;
    for(int i = 1; i <= N; i++) {
        for(int j = 1; j <= N; j++) {
            db[i][j] = INF;
            if(s[i][j] == 'H') {
                db[i][j] = 0;
                q.emplace(i, j);
            }
            else if(s[i][j] == 'M') {
                sx = i, sy = j;
 
 
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Compilation message (stderr)

mecho.cpp: In function 'int main()':
mecho.cpp:85:21: warning: 'ey' may be used uninitialized in this function [-Wmaybe-uninitialized]
   85 |         if(dm[ex][ey] == INF) {
      |            ~~~~~~~~~^
mecho.cpp:85:21: warning: 'ex' may be used uninitialized in this function [-Wmaybe-uninitialized]

• Subtask 1: 100 / 100