Submission #88699

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
88699	2018-12-07 15:24:20	popovicirobert	Tracks in the Snow (BOI13_tracks)	C++14	2.19 / 100	1288 ms	309456 KiB

tracks

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#include <bits/stdc++.h>
#define lsb(x) (x & (-x))
#define ll long long
#define ull unsigned long long
// 217
// 44
using namespace std;
const int MAXN = 4000;
char mat[MAXN + 1][MAXN + 1];
int sef[MAXN * MAXN + 1];
int myfind(int x) {
    if(sef[x] == 0)
        return x;
    return sef[x] = myfind(sef[x]);
}
inline void myunion(int x, int y) {
    x = myfind(x), y = myfind(y);
    if(x != y) {
        sef[x] = y;
    }
}
bool vis[MAXN * MAXN + 1];
char dl[] = {-1, 0, 1, 0}, dc[] = {0, -1, 0, 1};
int n, m;
 
 
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Compilation message (stderr)

tracks.cpp: In function 'int main()':
tracks.cpp:79:23: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
         cin >> mat[i] + 1;
                ~~~~~~~^~~

• Subtask 1: 0 / 30
• Subtask 2: 2.1875 / 70