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program UocChungLonNhat;
var
a, b: integer;
function UCLN(a, b: integer): integer;
begin
if b = 0 then
UCLN := a
else
UCLN := UCLN(b, a mod b);
end;
begin
write('Nhập số nguyên dương a: ');
readln(a);
write('Nhập số nguyên dương b: ');
readln(b);
writeln('UCLN của ', a, ' và ', b, ' là ', UCLN(a, b));
end.
Câu 1:
uses crt;
var m,n,ucln,i:integer;
begin
clrscr;
write('Nhap m='); readln(m);
write('Nhap n='); readln(n);
ucln:=1;
if m<n then
begin
for i:=1 to m do
if (m mod i=0) and (n mod i=0) then
begin
if ucln<i then ucln:=i;
end;
end
else begin
for i:=1 to n do
if (m mod i=0) and (n mod i=0) then
begin
if ucln<i then ucln:=i;
end;
end;
writeln(ucln);
readln;
end.
Câu 2:
uses crt;
var m,n,bcnn,i:integer;
begin
clrscr;
write('Nhap m='); readln(m);
write('Nhap n='); readln(n);
bcnn:=m*n;
for i:=m*n-1 downto 1 do
if (i mod m=0) and (i mod n=0) then
begin
if bcnn>i then bcnn:=i;
end;
writeln(bcnn);
readln;
end.
#include <bits/stdc++.h>
using namespace std;
unsigned long long a[50],x,n,uc,i;
//chuongtrinhcon
unsigned long long ucln(long long a,long long b)
{
if (b==0) return(a);
else return(ucln(b,a%b));
}
//chuongtrinhchinh
int main()
{
freopen("ucln.inp","r",stdin);
freopen("ucln.out","w",stdout);
cin>>n;
cin>>a[1]>>a[2];
uc=ucln(a[1],a[2]);
for (i=3; i<=n; i++)
{
cin>>x;
uc=ucln(uc,x);
}
cout<<uc;
return 0;
}
uses crt;
var i,n,c,b,uc:integer;
bcnn:int64;
a:array[1..100] of integer;
{--------------------------chuong-trinh-con-tim-ucln-cua-hai-so---------------}
function ucln(c,b:integer):integer;
var r:integer;
begin
r:=c mod b;
while r<>0 do
begin
c:=b;
b:=r;
r:=c mod b;
end;
ucln:=b;
end;
{---------------------------chuong-trinh-chinh-----------------------------------}
begin
clrscr;
Write('n='); readln(n);
for i:=1 to n do
begin
write('a[',i,']='); readln(a[i]);
end;
uc:=ucln(a[1],a[2]);
for i:=3 to n do
uc:=ucln(uc,a[i]);
writeln(uc);
readln;
end.
const fi='ucln.inp';
fo='ucln.out';
var f1,f2:text;
a,b,i,ucln:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,a,b);
if a<b then
begin
ucln:=1;
for i:=1 to a do
if (a mod i=0) and (b mod i=0) then
begin
if ucln<i then ucln:=i;
end;
end
else begin
ucln:=1;
for i:=1 to b do
if (a mod i=0) and (b mod i=0) then
begin
if ucln<i then ucln:=i;
end;
end;
writeln(f2,ucln);
close(f1);
close(f2);
end.
Program HOC24;
var a: array[1..32000] of integer;
ucln,i,n,ucln1: integer;
function uc(x,y: integer): integer;
var tg: integer;
begin
while y<>0 do
begin
tg:=x mod y;
x:=y;
y:=tg;
end;
uc:=x;
end;
begin
write('Nhap N: '); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
ucln1:=uc(a[1],a[2]);
for i:=3 to n do ucln:=uc(ucln1,a[i]);
write('Uoc chung lon nhat cua day so la: ',ucln);
readln
end.
uses crt;
var n,i,m,max:integer;
function kt(n:integer):integer;
var j,k:integer
begin
k:=0;
for j:=2 to n do
if (n mod j)=0 then k:=k+1;
kt:=k+1;
end;
begin
readln(n);
if n=1 then write(1)
else
begin
max:=kt(2);
for m:=3 to n do
if max<kt(m) then max:=kt(m);
write(max);
end;
end.
uses crt;
var i,n,m,k,d:integer;
{---------------chuong-trinh-con-tim-ucln--------------------}
function ucln(x,y:integer):integer;
var t:integer;
begin
while y<>0 do
begin
t:=x mod y;
x:=y;
y:=t;
end;
ucln:=x;
end;
{------------chuong-trinh-con-kiem-tra-so-nguyen-to-------------------}
function nt(b:longint):boolean;
var j:longint;
begin
nt:=true;
if (b=2) or (b=3) then exit;
nt:=false;
if (b=1) or (b mod 2=0) or (b mod 3=0) then exit;
j:=5;
while j<=trunc(sqrt(b)) do
begin
if (b mod j=0) or (b mod (j+2)=0) then exit;
j:=j+6;
end;
nt:=true;
end;
{---------------chuong-trinh-chinh---------------------}
begin
clrscr;
write('Nhap N: '); readln(N);
write('Nhap M: '); readln(M);
d:=0;
k:=ucln(N,M);
for i:=1 to k do
if nt(i) then d:=d+1;
if d>0 then writeln('2 so nay tuong duong voi nhau')
else writeln('2 so nay khong tuong duong voi nhau');
readln;
end.