gap.cpp: In function 'long long int findGap(int, long long int)':
gap.cpp:4:39: error: 'maxN' was not declared in this scope
long long l=0,d=n,x=-1,y=1e18+1,a[maxN],m=0;
^
gap.cpp:6:9: error: 'a' was not declared in this scope
a[i]=-1;
^
gap.cpp:9:29: error: 'MinMax' was not declared in this scope
MinMax(x+1,y-1,&x,&y);
^
gap.cpp:10:9: error: 'a' was not declared in this scope
a[l]=x;
^
gap.cpp:15:12: error: 'a' was not declared in this scope
if(a[i]!=-1 && a[i-1]!=-1 && a[i]-a[i-1]>m) m=a[i]-a[i-1];
^