Найдите и исправьте ошибку
program AGA;
var k,m,s,t,u,n,a,v,i:integer;
var G:array [1..n, 1..n] of integer;
B:array [1..n] of integer;
begin
readln (n);
for i:=1 to n do begin for j:=1 to n do begin
readln (G[i,j]); end; end;
B[1]:=1;
for k:=2 to n do B[k]:=0;
k:=1;
m:=0;
begin
while (k
