Cho chương trình sau

Program Xep_so;

Const T = 10;

Var M : Array[ 1 . . T ] of Integer;

Tg, i, j: Integer;

Begin

For i: = 1 to T do

Begin

Write(‘Hay nhap gia tri so thu’ , i , ’la :’);

Readln(M[ i ]);

End;

For i : = 1 to T - 1 do

For j : = i + 1 to T do

Begin

If M[ i ] > M[ j ] then

Begin

Tg: = M[ i ];

M[ i ]: = M[ j ];

M[ j ]: = Tg;

End;

End;

Writeln(‘ KET QUA SU CHUONG TRINH CHAY LA:’);

For i: = 1 to T do Writeln(M[ i ]);

Readln

End.

A. Cho biết đoạn chương trình này làm gì?

Câu 6: Cho biết kết quả in ra màn hình của đoạn chương trình sau

Câu a)

          i := -1;

          j:= 20;

For   k:= 1 to 5 do

          If  k   mod   2  = 0   then    i:= i + 1;

j := j + i;

Writeln(i,‘   ’,j);

Câu b)

n := 127;

m := 0;

While  n < >0  do

Begin

                   m := m * 10 + n  mod  10;

                   n := n  div  10;

end;

writeln(m);

cho biết số vòng lặp và giá trị của biến s sau khi thực hiện đoạn chương trình: a) S:=0; 

For i:=2 to 8 do S :=S+i 

b) S:=0; n:=1;

For i:=1 to 6 do

    Begin

          S:=S+n;

           n:=n+i;

   end;

c) S:=2;

For i:=1 to 10 do

     If(i mod 2)=0 then S:=S+i;

d) S:=0; i:= 1,5;

While S<7 do S:=S+i;

e) S:=0; i:=1;

While i<9 do

             Begin

                   S:=S+i;

                    i:=i+2;

                End;

f)   S:=2;  i:=1;

While i<= 10 do

Begin

If (i mod 2) then S:=S+i;

       i:=i+1;

End;

ĐÁP ÁN VÒNG 2 CUỘC THI TIN HỌC:

* ĐỀ 1:

Câu 1:

CÂU 1:
const fi='uc.inp'
fo='uc.out'
var f: text;
a,b,c : integer;
function uc(x,y): integer;
var z: integer;
begin
while y<>0 do
begin
z:=x mod y;
x:=y;
y:=z;
end;
uc:=x;
end;
procedure ip;
begin
assign(f,fi);
reset(f);
read(f,a,b,c);
close(f);
end;
procedure out;
begin
assign(f,fo);
rewrite(f);
write(f,uc(uc(a,b),c);
close(f);
end;
begin
ip;
out;
end.

Câu 2:

const fi='SN.inp'
fo='SN.out'
var
f:text;
i,n:integer;
s:real;
procedure ip;
begin
assign(f,fi);
reset(f);
read(f,n);
close(f);
end;
procedure out;
begin
assign(f,fo);
rewrite(f);
s:=0;
for i:= 1 to n do
begin
if i mod 2 <> 0 then
s:=s+(i/(i+1));
if i mod 2 = 0 then
s:=s-(i/(i+1));
end;
write(f,s:0:2);
close(f);
end;
BEGIN
ip;
out;
END.

Câu 3:

const fi='SSNT.inp'
fo='SSNT.out'
var
f:text;
n,i,max,j:integer;
s:string;
a:array[1..32000] of integer;
function nt(x:integer):boolean;
var
i:integer;
begin
nt:=false;
if x < 2 then exit;
for i:= 2 to trunc(sqrt(x)) do
if x mod i = 0 then exit;
nt:=true;
end;
function snt(x:integer):boolean;
begin
snt:=false;
if x= 0 then exit;
while nt(x) = true do
x := x div 10;
if x = 0 then snt:=true;
end;
procedure ip;
begin
assign(f,fi);
reset(f);
max:=a[1];
readln(f,n);
for i:= 1 to n do
begin
read(f,a[i]);
if( a[i] < max ) and (nt(a[i]) = true) then
max:=a[i];
end;
close(f);
end;
procedure out;
begin
assign(f,fo);
rewrite(f);
writeln(f,max);
max:=0;
for i:= 1 to n do
begin
if snt(a[i]) = true then
begin
str(a[i],s);
if length(s) = 2 then
max:=max+a[i];
s:=''
end
else
a[i]:=-32000;
end;
writeln(f,max);
for i:= 1 to n-1 do
for j :=i+1 to n do
if a[i] > a[j] then
begin
max:=a[i];
a[i]:=a[j];
a[j]:=max;
end;
for i:= 1 to n do
if (a[i] > 0) and (a[i] <> a[i-1]) then write(f,a[i],' ');
close(f);
end;
BEGIN
ip;
out;
END.

CÂU 4:

const fi='TUOI.INP'
fo='TUOI.OUT'
var f: text;
a,b: byte;
procedure ip;
begin
assign(f,fi);
reset(f);
read(f,a,b);
close(f);
end;
procedure out;
begin
assign(f,fo);
rewrite(f);
if (x=y*2) and (x>18) and (x-y>=18) then write(f,'CO') else write(f,x-y*2);
close(f);
end;
begin
ip;
out;
end.

const fi='CM.INP'

fo='CM.OUT'

var f: text;

a,n,b,k: integer;

a1: array[1..32000] of integer;

function nt(x: integer): boolean;

var i: integer;

begin

nt:=false;

if x<2 then exit;

for i:=2 to trunc(sqrt(x)) do if x mod i=0 then exit;

nt:=true;

end;

procedure ip;

begin

assign(f,fi);

reset(f);

read(f,n);

close(f);

end;

procedure out;

begin

assign(f,fo);

rewrite(f);

d:=0;

for a:=1 to k do

if nt(a) then

begin

inc(d);

a1[d]:=a;

end;

for a:=1 to d do

for b:=x to d do

if a1[a]+a1[b]=k then writeln(f,a1[a],'+',a1[b]);

end;

close(f);

end;

begin

ip;

out;

end.

*ĐỀ 2 :

BÀI LÀM CỦA BẠN LÊ HOÀNG THẮNG:

//----------------------------CAU 1--------------------------------

var s,d,n,i,u:longint;
a:array[0..32001] of longint;
f:text;
function ucln(x,y:longint):longint;
begin
if y=0 then exit(x) else exit(ucln(y,x mod y));
end;
begin
assign(f,'ucln.inp');reset(f);
readln(f,n);
for i:=1 to n do read(f,a[i]); close(f);
u:=a[1];
for i:=2 to n do u:=ucln(u,a[i]);
assign(f,'ucln.out');rewrite(f);
write(f,'UCLN: ',u,' UC: ');
for i:=1 to u do if u mod i=0 then
begin
if i<>u then write(f,i,',') else write(f,i);
if i<10 then inc(d) else inc(s,i);
end;
writeln(f);
writeln(f,d); write(f,s);
close(f);
end.

//----------------------------CAU 2--------------------------------

var n,i:longint;
s:real;
f:text;
begin
assign(f,'sn.inp');reset(f);
readln(f,n); close(f);
for i:=1 to n do if odd(i) then s:=s-i/(i+1) else s:=s+i/(i+1);
assign(f,'sn.out');rewrite(f);
write(f,s:0:2);
close(f);
end.

//----------------------------CAU 3--------------------------------

var a:array[0..1000000] of boolean;
b:array[0..1000000] of longint;
i,j,k,n,d:longint;
f:text;
procedure taosang(n:longint);
var i,j:longint;
begin
for i:=2 to trunc(sqrt(n)) do if not(a[i]) then
begin
j:=i*i;
while j<=n do begin a[j]:=true; inc(j,i); end;
end;
end;
begin
assign(f,'boso.inp');reset(f);
readln(f,n); taosang(n); close(f);
assign(f,'boso.out');rewrite(f);
for i:=2 to n do if not(a[i]) then
begin
inc(d);
b[d]:=i;
end;
for i:=1 to d do
for j:=i to d do
if (n-b[i]-b[j]>=b[j]) and not(a[n-b[i]-b[j]]) then
writeln(f,b[i],' ',b[j],' ',n-b[i]-b[j]);
close(f);
end.

//----------------------------CAU 4--------------------------------

THAM KHẢO ĐỀ 1.

//----------------------------CAU 5--------------------------------

var n,i,s,t:longint;
f:text;
begin
assign(f,'u.inp');reset(f);
readln(f,n); t:=n; close(f);
assign(f,'u.out');rewrite(f);
for i:=2 to trunc(sqrt(n)) do
begin
if n mod i=0 then
begin
write(f,i,' ');
repeat n:=n div i until n mod i>0;
end;
if t mod (i*i)=0 then inc(s,i*i);
end;
writeln(f);
write(f,s+1);
close(f);
end.

*ĐỀ CHUNG:

BÀI LÀM CỦA BẠN ĐÀO XUÂN SƠN :

Câu 1:

const fi='TCS.inp'
fo='TCS.out'
var
f:text;
x:char;
tg:byte;
s:integer;
CODE:integer;
procedure ip;
begin
assign(f,fi);
reset(f);
s:=0;
while not(eof(f)) do
begin
read(f,x);
if x in ['0'..'9'] then
begin
val(x,tg,CODE);
s:=s+tg;
end;
end;
close(f);
end;
procedure out;
begin
assign(f,fo);
rewrite(f);
write(f,s);
close(f);
end;
BEGIN
ip;
out;
END.

Câu 2:

const fi='t.inp'
fo='t.out'
var
f:text;
s:string;
i:byte;
procedure ip;
begin
assign(f,fi);
reset(f);
read(f,s);
close(f);
end;
procedure out;
begin
assign(f,fo);
rewrite(f);
s[1]:=upcase(s[1]);
for i:= 2 to length(s) do
if s[i-1] <> #32 then
s[i]:=lowercase(s[i]) else
s[i]:=upcase(s[i]);
write(f,s);
close(f);
end;
BEGIN
ip;
out;
END.

program xoa_ky_tu;
uses crt;
var x,y:string;
    i,j,dem,max: integer;
    a:char;
BEGIN
clrscr;
write('nhap xau x : ');
readln(x);
y:=x;

for i:=1 to length(x) do
begin
j:=i+1;
repeat
if x[i]=x[j] then delete(x,j,1)
else
j:=j+1;
until (j>length(x));
end;
writeln('xau sau khi loai bo ki tu giong nhau la :',x);

max:=0;
a:=' ';
for i:=1 to length(x) do
begin
dem:=0;
for j:=1 to length(y) do
if x[i]=y[j] then
dem:=dem+1;
if dem>max then
begin
max:=dem;

a:=x[i];
end;
end;
writeln('ki tu ',a,' xuat hien ',max,' lan');

readln;
end.

ĐÁP ÁN VÒNG 1 CUỘC THI TIN HỌC LẦN 2

Câu 1:

const fi='ptyn.inp'
fo='ptyn.out'
var a:array[1..100,1..100]of integer;
i,j,n,m,snn,sln,vtc,vth,x,z,kt,k,dem:integer;
f1,f2:text;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,n,m);
for i:=1 to n do
for j:=1 to m do
read(f1,a[i,j]);
{----------nho nhat hang----------}
dem:=0;
for i:=1 to n do
begin
snn:=a[i,1];
for j:=1 to m do
if snn>=a[i,j] then
begin
snn:=a[i,j];
vth:=i;
vtc:=j;
end;
kt:=0;
sln:=a[vth,vtc];
for k:=1 to n do
if sln<a[k,vtc] then kt:=1;
if kt=0 then
begin
writeln(f2,vth,' ',vtc);
dem:=dem+1;
end;
end;
if dem=0 then writeln(f2,'Khong co phan tu yen ngua');
close(f1);
close(f2);
end.

Câu 2: Bài làm của bạn @Tran Nguyễn Đăng Dương

Program connect;
uses crt;
const fi='connect.inp'
fo='connect.out'
type num=record
number,top:integer;
end;
var a:array[0..1000] of num;
t:num;
i,n,j:integer;
f1,f2:text;
Function timtop(a:integer):integer;
begin
if a<10 then exit(a);
exit(timtop(a div 10));
end;
Begin
clrscr;
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
read(f1,n);
for i:=1 to n do
begin
read(f1,a[i].number);
a[i].top:=timtop(a[i].number);
end;
for i:=1 to n-1 do
for j:=i+1 to n do
begin
if a[i].top=a[j].top then
begin
if a[i].number>a[j].number then
begin
t:=a[i];
a[i]:=a[j];
a[j]:=t;
end;
end
else if a[i].top<a[j].top then
begin
t:=a[i];
a[i]:=a[j];
a[j]:=t;
end;
end;
for i:=1 to n do write(f2,a[i].number);
Close(f1);
Close(f2);
End.

Câu 3:

const fi='quediem.inp'
fo='quediem.out'
var f1,f2:text;
i,m,n,d,x,j,csc:longint;
a,b:array[1..100]of integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,n);
{---------------------------tim-so-lon-nhat----------------------------}
m:=n;
if m mod 2=0 then
begin
for i:=1 to n div 2 do
write(f2,'1');
end
else begin
write(f2,'7');
for i:=2 to n div 2 do
write(f2,'1');
end;
{---------------------------tim-so-nho-nhat----------------------------}
write(f2,'-');
a[1]:=2; b[1]:=1;
a[2]:=5; b[2]:=2;
a[3]:=4; b[3]:=4;
a[4]:=6; b[4]:=6;
a[5]:=3; b[5]:=7;
a[6]:=7; b[6]:=8;
d:=(n div 7)+1;
if n mod 7=0 then d:=d-1;
if d=1 then
begin
case n of
2: write(f2,'1');
3: write(f2,'7');
4: write(f2,'4');
5: write(f2,'2');
6: write(f2,'0');
7: write(f2,'8');
end;
end;
if d>1 then
begin
for i:=1 to d do
if i=1 then
begin
b[4]:=6;
for j:=1 to 6 do
begin
x:=n;
x:=x-a[j];
csc:=(x div 7)+1;
if x mod 7=0 then dec(csc);
if csc=d-i then
begin
write(f2,b[j]);
n:=x;
break;
end;
end;
end
else begin
a[1]:=6; b[1]:=0;
a[2]:=2; b[2]:=1;
a[3]:=5; b[3]:=2;
a[4]:=4; b[4]:=4;
a[5]:=3; b[5]:=7;
a[6]:=7; b[6]:=8;
for j:=1 to 6 do
begin
x:=n;
x:=x-a[j];
csc:=(x div 7)+1;
if x mod 7=0 then csc:=csc-1;
if csc=d-i then
begin
write(f2,b[j]);
n:=x;
break;
end;
end;
end;
end;
close(f1);
close(f2);
end.

Câu 4:

const fi='tvh.inp'
fo='tvh.out'
var n,d,dem,sl,s2cs,s3cs,s4cs,s5cs,s6cs,s7cs,s8cs,k,i,d1:longint;
st,st1,stk:string;
f1,f2:text;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,n,k);
str(n,st);
d:=length(st);
case d of
1: write(9);
2: begin
sl:=n-9;
dem:=9+sl*2;
end;
3: begin
s2cs:=(99-10)+1;
s3cs:=n-99;
dem:=9+s2cs*2+s3cs*3;
end;
4: begin
s2cs:=(99-10)+1;
s3cs:=(999-100)+1;
s4cs:=n-999;
dem:=9+s2cs*2+s3cs*3+s4cs*4;
end;
5: begin
s2cs:=(99-10)+1;
s3cs:=(999-100)+1;
s4cs:=(9999-1000)+1;
s5cs:=n-9999;
dem:=9+s2cs*2+s3cs*3+s4cs*4+s5cs*5;
end;
6: begin
s2cs:=(99-10)+1;
s3cs:=(999-100)+1;
s4cs:=(9999-1000)+1;
s5cs:=(99999-10000)+1;
s6cs:=n-99999;
dem:=9+s2cs*2+s3cs*3+s4cs*4+s5cs*5+s6cs*6;
end;
7: begin
s2cs:=(99-10)+1;
s3cs:=(999-100)+1;
s4cs:=(9999-1000)+1;
s5cs:=(99999-10000)+1;
s6cs:=(999999-100000)+1;
s7cs:=n-999999;
dem:=9+s2cs*2+s3cs*3+s4cs*4+s5cs*5+s6cs*6+s7cs*7;
end;
8: begin
s2cs:=(99-10)+1;
s3cs:=(999-100)+1;
s4cs:=(9999-1000)+1;
s5cs:=(99999-10000)+1;
s6cs:=(999999-100000)+1;
s7cs:=(9999999-1000000)+1;
s8cs:=n-9999999;
dem:=9+s2cs*2+s3cs*3+s4cs*4+s5cs*5+s6cs*6+s7cs*7+s8cs*8;
end;
end;
if k<=dem then
begin
i:=1;
d1:=0;
repeat
str(i,st1);
d1:=d1+length(st1);
inc(i);
until d1>=k;
stk:=st1[length(st1)-(d1-k)];
writeln(f2,stk);
end;
close(f1);
close(f2);
end.

Câu 5: Bài làm của bạn @Tran Nguyễn Đăng Dương

Program robot;
uses crt;
const fi='robot.inp'
fo='robot.out'
type path=record
num,npath:integer;
end;
var a:array[0..1000,0..1000] of path;
i,j,n:integer;
b,c:array[1..2] of Integer;
st,st1:string;
f1,f2:text;
check:boolean;
min:real;
Function he2sanghe10(st1:string):real;
var d,x,tg:integer;
stt:string;
begin
he2sanghe10:=0;
d:=Length(st1);
for i:=1 to d do
begin
stt:=st1[i];
Val(stt,x,tg);
he2sanghe10:=he2sanghe10*2+x;
end;
end;
Procedure robotpath(x,y:integer; st1:string);
var k:integer;
t:string;
S:real;
begin
if (x=n) and (y=n) then
begin
S:=0;
S:=he2sanghe10(st1);
if (min>S) then
begin
min:=S;
st:=st1;
end;
end
else
for k:=1 to 2 do
begin
if (x+b[k]>=1) and (y+c[k]>=1) and (x+b[k]<=n) and (y+c[k]<=n) then
begin
str(a[x+b[k],y+c[k]].num,t);
st1:=st1+t;
a[x+b[k],y+c[k]].npath:=a[x,y].npath+1;
robotpath(x+b[k],y+c[k],st1);
Delete(st1,Length(st1),1);
if (a[x+b[k],y+c[k]].npath=0) then break;
end;
end;
end;
Begin
clrscr;
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
b[1]:=1; c[2]:=1;
min:=99999999999999999999999999999999999999;
read(f1,n);
for i:=1 to n do
for j:=1 to n do
begin
read(f1,a[i,j].num);
a[i,j].npath:=n*n;
end;
a[1,1].npath:=1;
Str(a[1,1].num,st1);
robotpath(1,1,st1);
writeln(f2,st);
Close(f1);
Close(f2);
End.