Submission #8593742

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Source Code Expand

#include<iostream>
#include<cstdio>
#include<queue>
#define maxw 11
#define maxh 10005
using namespace std;
int w,h;
int map[maxh][maxw];
int vis[maxh][maxw]={0};
int vx[4]={0,0,1,-1};
int vy[4]={1,-1,0,0};
int dx,dy;
int mint;
void dfs(int x,int y,int step)
{
   if(x==dx&&y==dy)
   {
       mint = min(mint,step);
       return ;
   }
   vis[x][y]=1;
   for(int i=0;i<4;i++)
   {
       int xx = x+vx[i];
       int yy = y+vy[i];
      if(xx<=h&&xx>0&&yy<=w&&yy>0&&(!vis[xx][yy]))
       dfs(xx,yy,step+map[xx][yy]);
   }
   vis[x][y]=0;
}
int main()
{
    int q;
    scanf("%d %d %d",&w,&h,&q);
    for(int i=1;i<=h;i++){
         for(int j=1;j<=w;j++){
            scanf("%d",&map[i][j]);
        }
    }
    int sx,sy;
    for(int i=0;i<q;i++)
    {
        scanf("%d %d %d %d",&sy,&sx,&dy,&dx);
        mint = 0x3f3f3f3f;
        dfs(sx,sy,map[sx][sy]);
        cout<<mint<<endl;
    }
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:34:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d %d",&w,&h,&q);
                               ^
./Main.cpp:37:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d",&map[i][j]);
                                   ^
./Main.cpp:43:45: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d %d %d",&sy,&sx,&dy,&dx);
                                             ^

Judge Result