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Submission #233134

# Submission time Handle Problem Language Result Execution time Memory
233134 2020-05-19T13:49:22 Z anubhavdhar Mecho (IOI09_mecho) C++14
4 / 100
 258 ms 7800 KB 
#include<bits/stdc++.h>

#define ll long long int
#define pb push_back
#define mp make_pair
#define FOR(i,n) for(i=0;i<(n);++i)
#define FORe(i,n) for(i=1;i<=(n);++i)
#define FORr(i,a,b) for(i=(a);i<(b);++i)
#define FORrev(i,n) for(i=(n);i>=0;--i)
#define F0R(i,n) for(int i=0;i<(n);++i)
#define F0Re(i,n) for(int i=1;i<=(n);++i)
#define F0Rr(i,a,b) for(ll i=(a);i<(b);++i)
#define F0Rrev(i,n) for(int i=(n);i>=0;--i)
#define ii pair<ll,ll>
#define vi vector<ll>
#define vii vector<ii>
#define ff first 
#define ss second
#define cd complex<double>
#define vcd vector<cd>
#define ldd long double
#define dbgLine cout<<"Line : "<<__LINE__<<'\n'
#define all(x) (x).begin(),(x).end()

using namespace std;

const short int __PRECISION = 10;

const ll MOD = 1e9+7;
const ll INF = 1e17 + 1101;
const ll LOGN = 17;
const ll MAXN = 2e5+5;
const ll ROOTN = 320;

const int inf = 1e9+2;

const ldd PI = acos(-1);
const ldd EPS = 1e-7;

int N, S, disB[900][900], disM[900][900], X, Y, H, K;
char grid[900][900];
bool vis[900][900];

inline bool inside(int i, int j)
{
	return ((i < N) && (i >= 0) && (j < N) && (j >= 0));
}

int main()
{
	/*
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	*/

	cin>>N>>S;
	queue<pair<int, int>> Q;

	F0R(i, N)
		F0R(j ,N)
		{
			cin>>grid[i][j];
			vis[i][j] = false;
			disB[i][j] = inf;
			if(grid[i][j] == 'H')
				Q.push(mp(i, j)), disB[i][j] = 0, vis[i][j] = true;
			else if(grid[i][j] == 'M')
				X = i, Y = j;
			else if(grid[i][j] == 'D')
				H = i, K = j;
		}

	while(!Q.empty())
	{
		int x = Q.front().ff, y = Q.front().ss;
		Q.pop();
		for(pair<int, int> p : {mp(0, -1), mp(0, 1), mp(1, 0), mp(-1, 0)})
			if(inside(x+p.ff, y+p.ss) && (!vis[x+p.ff][y+p.ss]) && (grid[x+p.ff][y+p.ss] == 'G' or grid[x+p.ff][y+p.ss] == 'D'))
			{
				disB[x+p.ff][y+p.ss] = disB[x][y] + 1;
				vis[x+p.ff][y+p.ss] = true;
				Q.push(mp(x+p.ff, y+p.ss));
			}
	}

	int lo = -1, hi = 4000, mid;
	while(lo < hi - 1)
	{
		mid = (lo + hi)/2;
		F0R(i, N)
			F0R(j, N)
				vis[i][j] = false, disM[i][j] = inf;
		vis[X][Y] = true;
		disM[X][Y] = 0;
		Q.push(mp(X, Y));
		while(!Q.empty())
		{
			int x = Q.front().ff, y = Q.front().ss;
			Q.pop();
			if (disB[x][y] < mid + 1 + (disM[x][y])/S)
			{
				disM[x][y] = inf;
				continue;
			}
			for(pair<int, int> p : {mp(0, -1), mp(0, 1), mp(1, 0), mp(-1, 0)})
				if(inside(x+p.ff, y+p.ss)&&(!vis[x+p.ff][y+p.ss])&&(grid[x+p.ff][y+p.ss] == 'G' or grid[x+p.ff][y+p.ss] == 'D'))
				{
					disM[x+p.ff][y+p.ss] = disM[x][y] + 1;
					vis[x+p.ff][y+p.ss] = true;
					Q.push(mp(x+p.ff, y+p.ss));
				}
		}
		if(disM[H][K] == inf)
			hi = mid;
		else
			lo = mid;
	}

	cout<<-1;

	return 0;
}

Subtask #1
4.0 / 100.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 384 KB Output isn't correct
2 Incorrect 5 ms 384 KB Output isn't correct
3 Incorrect 5 ms 384 KB Output isn't correct
4 Incorrect 5 ms 384 KB Output isn't correct
5 Incorrect 4 ms 384 KB Output isn't correct
6 Incorrect 5 ms 384 KB Output isn't correct
7 Incorrect 148 ms 7416 KB Output isn't correct
8 Correct 5 ms 512 KB Output is correct
9 Incorrect 5 ms 512 KB Output isn't correct
10 Incorrect 5 ms 512 KB Output isn't correct
11 Incorrect 5 ms 512 KB Output isn't correct
12 Incorrect 5 ms 896 KB Output isn't correct
13 Incorrect 5 ms 768 KB Output isn't correct
14 Correct 5 ms 896 KB Output is correct
15 Incorrect 5 ms 512 KB Output isn't correct
16 Incorrect 5 ms 512 KB Output isn't correct
17 Incorrect 5 ms 512 KB Output isn't correct
18 Incorrect 5 ms 512 KB Output isn't correct
19 Incorrect 5 ms 640 KB Output isn't correct
20 Incorrect 5 ms 640 KB Output isn't correct
21 Incorrect 5 ms 640 KB Output isn't correct
22 Incorrect 5 ms 640 KB Output isn't correct
23 Incorrect 5 ms 768 KB Output isn't correct
24 Incorrect 5 ms 768 KB Output isn't correct
25 Incorrect 5 ms 896 KB Output isn't correct
26 Incorrect 5 ms 896 KB Output isn't correct
27 Incorrect 5 ms 896 KB Output isn't correct
28 Incorrect 5 ms 896 KB Output isn't correct
29 Incorrect 5 ms 1024 KB Output isn't correct
30 Incorrect 5 ms 896 KB Output isn't correct
31 Incorrect 5 ms 1024 KB Output isn't correct
32 Incorrect 6 ms 1024 KB Output isn't correct
33 Incorrect 28 ms 3456 KB Output isn't correct
34 Incorrect 33 ms 3456 KB Output isn't correct
35 Incorrect 36 ms 3456 KB Output isn't correct
36 Incorrect 36 ms 3840 KB Output isn't correct
37 Incorrect 45 ms 3832 KB Output isn't correct
38 Incorrect 47 ms 3840 KB Output isn't correct
39 Incorrect 44 ms 4352 KB Output isn't correct
40 Incorrect 52 ms 4344 KB Output isn't correct
41 Incorrect 57 ms 4348 KB Output isn't correct
42 Incorrect 53 ms 4736 KB Output isn't correct
43 Incorrect 66 ms 4736 KB Output isn't correct
44 Incorrect 71 ms 4736 KB Output isn't correct
45 Incorrect 62 ms 5112 KB Output isn't correct
46 Incorrect 76 ms 5112 KB Output isn't correct
47 Incorrect 91 ms 5308 KB Output isn't correct
48 Incorrect 74 ms 5624 KB Output isn't correct
49 Incorrect 91 ms 5624 KB Output isn't correct
50 Incorrect 107 ms 5624 KB Output isn't correct
51 Incorrect 87 ms 6008 KB Output isn't correct
52 Incorrect 106 ms 6112 KB Output isn't correct
53 Incorrect 121 ms 6008 KB Output isn't correct
54 Incorrect 98 ms 6520 KB Output isn't correct
55 Incorrect 123 ms 6520 KB Output isn't correct
56 Incorrect 142 ms 6524 KB Output isn't correct
57 Incorrect 112 ms 6904 KB Output isn't correct
58 Incorrect 141 ms 7032 KB Output isn't correct
59 Incorrect 172 ms 7032 KB Output isn't correct
60 Incorrect 127 ms 7416 KB Output isn't correct
61 Incorrect 159 ms 7416 KB Output isn't correct
62 Incorrect 181 ms 7416 KB Output isn't correct
63 Incorrect 176 ms 7416 KB Output isn't correct
64 Incorrect 258 ms 7288 KB Output isn't correct
65 Incorrect 236 ms 7416 KB Output isn't correct
66 Incorrect 203 ms 7416 KB Output isn't correct
67 Correct 171 ms 7416 KB Output is correct
68 Incorrect 114 ms 7544 KB Output isn't correct
69 Incorrect 106 ms 7348 KB Output isn't correct
70 Incorrect 104 ms 7544 KB Output isn't correct
71 Incorrect 99 ms 7416 KB Output isn't correct
72 Incorrect 94 ms 7420 KB Output isn't correct
73 Incorrect 127 ms 7672 KB Output isn't correct
74 Incorrect 123 ms 7672 KB Output isn't correct
75 Incorrect 134 ms 7700 KB Output isn't correct
76 Incorrect 122 ms 7672 KB Output isn't correct
77 Incorrect 119 ms 7672 KB Output isn't correct
78 Correct 133 ms 7800 KB Output is correct
79 Incorrect 117 ms 7800 KB Output isn't correct
80 Incorrect 124 ms 7672 KB Output isn't correct
81 Incorrect 133 ms 7716 KB Output isn't correct
82 Incorrect 128 ms 7676 KB Output isn't correct
83 Incorrect 135 ms 7636 KB Output isn't correct
84 Incorrect 132 ms 7544 KB Output isn't correct
85 Incorrect 131 ms 7544 KB Output isn't correct
86 Incorrect 143 ms 7544 KB Output isn't correct
87 Incorrect 137 ms 7672 KB Output isn't correct
88 Incorrect 143 ms 7544 KB Output isn't correct
89 Incorrect 142 ms 7672 KB Output isn't correct
90 Incorrect 149 ms 7588 KB Output isn't correct
91 Incorrect 142 ms 7544 KB Output isn't correct
92 Incorrect 138 ms 7548 KB Output isn't correct