Submission #26489

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
26489	2017-07-01 10:21:41	samir_droubi	Tracks in the Snow (BOI13_tracks)	C++14	100 / 100	1416 ms	838424 KiB

tracks

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#include <bits/stdc++.h>
using namespace std;
const int mxn=4005;
char g[mxn][mxn];
int n,m;
 
int dx[]={0,0,1,-1};
int dy[]={1,-1,0,0};
bool check(int x,int y)
{
  return x>=0&&x<n&&y>=0&&y<m&&g[x][y]!='*';
}
char ty;
int c=0;
vector<pair<int,int> >v;
vector<pair<int,int> >vv;
queue<pair<int,int> >q;
void bfs()
{
  while(!q.empty())
  {
    int x=q.front().first;
    int y=q.front().second;
    ++c;
    q.pop();
    for(int i=0;i<4;++i)
    {
      int xx=x+dx[i];
      int yy=y+dy[i];
      if(!check(xx,yy))continue;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

tracks.cpp: In function 'int main()':
tracks.cpp:45:38: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[4005]' [-Wformat=]
  for(int i=0;i<n;++i)scanf("%s",&g[i]);
                                      ^
tracks.cpp:56:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<v.size();++i)
                ^
tracks.cpp:43:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&m);
                     ^
tracks.cpp:45:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=0;i<n;++i)scanf("%s",&g[i]);
                                       ^

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