View Compilation Error

0_0_26764274_31595.cpp:5:19: error: lvalue required as left operand of assignment
 int n,tot,a[N],p[N=1];
                   ^
0_0_26764274_31595.cpp: In function 'int mian()':
0_0_26764274_31595.cpp:8:14: error: 'p' was not declared in this scope
         if (!p[i])
              ^
0_0_26764274_31595.cpp:12:13: error: 'p' was not declared in this scope
             p[i*a[j]]=a[j];
             ^
0_0_26764274_31595.cpp:16:23: error: expected primary-expression before '%' token
     while (scanf("%d",%n)!=EOF){
                       ^
0_0_26764274_31595.cpp:17:15: error: 'p' was not declared in this scope
         for (;p[n];n/=p[n])
               ^