Submission #500730

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
500730	2022-01-01 01:59:26	kevin	Mecho (IOI09_mecho)	C++17	21 / 100	213 ms	8104 KiB

mecho

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#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define nl cout<<"\n"
#define f first
#define s second
#define ca(v) for(auto i:v) cout<<i<<" ";
int xm[4] = {-1, 1, 0, 0};
int ym[4] = {0, 0, -1, 1};
int grid[801][801];
int dst[801][801];
int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);
    if (fopen("input.in", "r")) freopen("input.in", "r", stdin);
    int n; cin>>n; int x; cin>>x;
    queue<pair<int, int>> q;
    pair<int, int> st;
    pair<int, int> ed;
    vector<vector<bool>> vis(n, vector<bool>(n, 0));
    for(int i=0; i<n; i++){
        for(int j=0; j<n; j++){
            char c; cin>>c;
            grid[i][j] = (c != 'T');
            if(c == 'M') st = {i, j};
            if(c == 'D') ed = {i, j};
 
 
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Compilation message (stderr)

mecho.cpp: In function 'int main()':
mecho.cpp:19:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |     if (fopen("input.in", "r")) freopen("input.in", "r", stdin);
      |                                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 21 / 100