View Compilation Error

0_0_17967048_16178.cpp:14:7: error: 'ing' does not name a type
 const ing maxn = 1000010;
       ^
0_0_17967048_16178.cpp:26:15: error: 'MAXN' was not declared in this scope
 vector<Edge>E[MAXN];
               ^
0_0_17967048_16178.cpp:27:10: error: 'MAXN' was not declared in this scope
 bool vis[MAXN];
          ^
0_0_17967048_16178.cpp:28:10: error: 'MAXN' was not declared in this scope
 int dist[MAXN];
          ^
0_0_17967048_16178.cpp: In function 'void dij(int, int)':
0_0_17967048_16178.cpp:30:12: error: 'vis' was not declared in this scope
     memset(vis,0,sizeof vis);
            ^
0_0_17967048_16178.cpp:31:26: error: 'dist' was not declared in this scope
     for(int i=1;i<=n;i++)dist[i]=inf;
                          ^
0_0_17967048_16178.cpp:34:5: error: 'dist' was not declared in this scope
     dist[start]=0;
     ^