Submission #41157

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
41157	2018-02-13 06:59:42	14kg	Portals (BOI14_portals)	C++11	100 / 100	920 ms	117716 KiB

portals

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#include <stdio.h>
#include <algorithm>
#include <queue>
#include <vector>
#define N 1001
#define INF 1000000000
using namespace std;
typedef pair<int,pair<int,int> > pip;
int n, m, board[N][N], go[N][N], d[N][N];
int dx[4]={1,-1,0,0}, dy[4]={0,0,1,-1};
bool go_check[N][N], check[N][N];
pair<int,int> S, E;
vector<pair<int,int> > p[N][N], O[1000001];
queue<int> Q;
queue<pip> PQ;
void bfs_go(){
    int ty, tx, yy, xx;
    bool w_check;
    for(int i=1; i<=n; i++)
        for(int j=1; j<=m; j++){
            w_check=false;
            for(int s=0; s<4; s++){
                ty=i+dy[s], tx=j+dx[s];
                if(ty<1 || ty>n || tx<1 || tx>m) w_check=true;
                else if(board[ty][tx]) w_check=true;
            }
            if(w_check){
 
 
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Compilation message (stderr)

portals.cpp: In function 'int main()':
portals.cpp:104:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d",&n,&m);
                         ^
portals.cpp:106:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%s",in+1);
                         ^

• Subtask 1: 11 / 11
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 19 / 19
• Subtask 5: 30 / 30