View Compilation Error

0_0_26717726_29823.cpp: In function 'void getmap()':
0_0_26717726_29823.cpp:105:26: error: 'z' was not declared in this scope
     for(int i=1;i<=n;i++)z
                          ^
0_0_26717726_29823.cpp:106:21: error: 'j' was not declared in this scope
         for(int j=1;j<=n;j++)   scanf("%d",&a[i][j]);
                     ^