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uses crt;
var a:array[1..100]of integer;
i,n,min:integer;
begin
clrscr;
readln(n);
for i:=1 to n do readln(a[i]);
min:=a[1];
for i:=1 to n do
if min>a[i] then min:=a[i];
writeln(min);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
var a:array[1..200]of real;
i,n:integer;
tb:real;
begin
clrscr;
readln(n);
for i:=1 to n do readln(a[i]);
tb:=0;
for i:=1 to n do tb:=tb+a[i];
writeln(tb/n:4:2);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
var a:array[1..100]of real;
i,n,dem:integer;
begin
clrscr;
readln(n);
for i:=1 to n do readln(a[i]);
dem:=0;
for i:=1 to n do
if a[i]>=8 then inc(dem);
writeln(dem);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
var a,b,c,nn:integer;
begin
clrscr;
readln(a,b,c);
nn:=a;
if nn>b then nn:=b;
if nn>c then nn:=c;
writeln(nn);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
program text;
uses crt;
var i:integer;
a,b,c,ha,hb,hc,p,S:real;
X,Y:array[1..3] of integer;
Begin
clrscr;
Writeln('Nhap toa do cac dinh A, B, C:');
for i:= 1 to 3 do readln(X[i],Y[i]);
a:=sqrt(sqr(X[2]-X[3])+sqr(Y[2]-Y[3]));
b:=sqrt(sqr(X[1]-X[3])+sqr(Y[1]-Y[3]));
c:=sqrt(sqr(X[2]-X[1])+sqr(Y[2]-Y[1]));
p:= (a+b+c)/2;
S:= sqrt(p*(p-a)*(p-b)*(p-c));
Writeln('Dien tich cua tam giac la: ',S:0:4);
ha:=2*S/a;
hb:=2*S/b;
hc:=2*S/c;
writeln('ha = ',ha:0:2,' hb = ',hb:0:2,' hc = ',hc:0:2);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
uses crt;
var xa,ya,xb,yb,xc,yc,p,s,ab,bc,ac:real;
begin
clrscr;
readln(xa,ya,xb,yb,xc,yc);
ab:=sqrt(sqr(xa-xb)+sqr(ya-yb));
ac:=sqrt(sqr(xa-xc)+sqr(ya-yc));
bc:=sqrt(sqr(xb-xc)+sqr(yb-yc));
p:=(ab+bc+ac)/2;
s:=sqrt(p*(p-ab)*(p-ac)*(p-bc));
writeln(s:4:2);
readln;
end.
![](https://rs.olm.vn/images/avt/0.png?1311)
Câu 4:
fucntion tong(x:integer):integer;
var st:string;
d,i,n,y,t:integer;
begin
str(x,st);
d:=length(st);
t:=0;
for i:=1 to d do
begin
val(st[i],n,y);
t:=t+n;
end;
tong:=t;
end;
Câu 2:
const fi='bai2.inp';
fo='bai2.out';
var f1,f2:text;
a:array[1..100]of integer;
n,i,t:integer;
begin
assign(f1,fi); reset(f1);
assign(f2,fo); rewrite(f2);
readln(f1,n);
for i:=1 to n do
read(f1,a[i]);
t:=0;
for i:=1 to n do
t:=t+a[i];
writeln(f2,t);
close(f1);
close(f2);
end.