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十八届第二题. var n,i,ans:integer; function gcd (a,b :integer) : integer; begin if a mod b=0 then gcd := b else gcd := gcd (b,a mod b); end; begin readln(n); ans := 0; for i:=1 to n do if gcd(n,i)=i then ans := ans + 1; writeln(ans); end. 输入：120 输出：_____________. - PowerPoint PPT Presentation
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var n,i,ans:integer;function gcd(a,b :integer) : integer;begin if a mod b=0
then gcd :=belse gcd := gcd(b,a mod b);
end;
begin readln(n); ans := 0; for i:=1 to n do if gcd(n,i)=i then ans := ans + 1; writeln(ans);end.
输入： 120输出： _____________
十八届第二题
var n,i,ans:integer;function gcd(a,b :integer) : integer;begin if a mod b=0
then gcd :=belse gcd := gcd(b,a mod b);
end;
begin readln(n); ans := 0; for i:=1 to n do if gcd(n,i)=i then ans := ans + 1; writeln(ans);end.
输入： 120输出： _____________
120=1*2*6*10
1 2 3 4 5 6
120=1*2*2*3*2*5
8
10 15 2012 24
30 40 12060
2． procedure foo(a,b,c:integer); begin if a>b then foo(c,a,b) else writeln(a,',',b,',',c) end; var a,b,c:integer; begin readln(a,b,c); foo(a,b,c); end.
输入： 2 1 3输出： _________________
十四届第二题
2． procedure foo(a,b,c:integer); begin if a>b then foo(c,a,b) else writeln(a,',',b,',',c) end; var a,b,c:integer; begin readln(a,b,c); foo(a,b,c); end.
输入： 2 1 3输出： _________________
2 1 3
3 2 1
1 3 2
十四届第二题
procedure f(a,b,c:integer); begin write(a,b,c,'/'); If (a=3)and(b=2)and(c=1) then exit; if (b<c) then f(a,c,b) else if a<b then if a<c then f(c,a,b) else f(b,c,a); end; var a,b,c:integer; begin readln(a,b,c); f(a,b,c); end.
输入： 1 3 2
十四届第三题
procedure f(a,b,c:integer); begin write(a,b,c,'/'); If (a=3)and(b=2)and(c=1) then exit; if (b<c) then f(a,c,b) else if a<b then if a<c then f(c,a,b) else f(b,c,a); end; var a,b,c:integer; begin readln(a,b,c); f(a,b,c); end.
输入： 1 3 2
n
y
n
yf(a,c,b)
b<c
a<b
a<cy
f(c,a,b)f(b,c,a)
十四届第三题
132/213/231/312/321/
vara,b:integer;function work(a,b:integer):integer;beginif a mod b <> 0 then work := work(b,a mod b) else work := b;end;beginread(a,b);writeln(work(a,b));end.输入： 123 321
十五届第一题
vara,b:integer;function work(a,b:integer):integer;beginif a mod b <> 0 then work := work(b,a mod b) else work := b;end;beginread(a,b);writeln(work(a,b));end.输入： 123 321
十五届第一题
3
ACSII码（美国标准信息交换码）
American Standard Code for Info
rmation Interchange
program ex1188;
var st1,st2:string;
a,b:array[1..250] of integer;
len1,len2,len,c,i:integer;
begin
readln(st1); len1:=length(st1);
readln(st2); len2:=length(st2);
for i:=1 to len1 do a[i]:=ord(st1[len1-i+1])-48;
for i:=1 to len2 do b[i]:=ord(st2[len2-i+1])-48;
if len1>len2 then len:=len1 else len:=len2;
c:=0;
for i:=1 to len do
begin
a[i]:=a[i]+b[i]+c;
c:=a[i] div 10;
a[i]:=a[i] mod 10;
end;
if c<>0 then write(c);
for i:=len downto 1 do write(a[i]);
end.
var s:string; i,j,len,k:integer;beginreadln(s);len:=length(s);for i:=1 to len do if (ord(s[i])>=ord('A')) and (ord(s[i])<=ord('Z')) t
hen s[i]::=chr(ord(s[i])-ord('A')+ord('a'));for i:=1 to len doif (ord(s[i])<ord('x')) then s:=chr(ord(s[i])+3) else s[i]:=chr(ord(s[i])-23);write(s);write('/');for j:=1 to 3 dobegin i:=1; while i<=len-j do begin s[i]:=s[i+j]; i:=i+j; end;end;writeln(s);end.
输入： ABCDEFGuvwxyz
输出： ________________________________
十五届第四题
var s:string; i,j,len,k:integer;begin readln(s); len:=length(s); for i:=1 to len do if (ord(s[i])>=ord('A')) and (ord(s[i])<=ord('Z')) then s[i]:=chr(ord(s[i])-ord('A')+ord('a')); for i:=1 to len do if (ord(s[i])<ord('x')) then s[i]:=chr(ord(s[i])+3) else s[i]:=chr(ord(s[i])-23); for i:=1 to len do write(s[i]); write('/'); for j:=1 to 3 do begin i:=1; while i<=len-j do begin s[i]:=s[i+j]; i:=i+j; end; end;
for i:=1 to len writeln(s[i]);end.输入： ABCDEFGuvwxyz
abcdefguvwxyz
abcdefghijklmnopqrstuvwxyz
defghijxyzabc
defghijxyzabc
13
