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var A:
array[1..n] of int64;
i, n, count: integer;
begin
write('Nhap so phan tu cua mang: ');
readln(n);
for i := 1 to n do
begin
write('Nhap phan tu thu ', i, ': ');
readln(A[i]);
end;
count := 0;
for i := 1 to n do
if A[i] > 0 then
count := count + 1;
writeln('So luong cac so nguyen duong trong mang la: ', count); end.
a/ =SUM(A1:A5)=29
=SUM(A1,A2,A3,A4,A5)=29
b/ =MAX(A1:A5)=9
=MAX(A1,A2,A3,A4,A5)=9
Bài 1:
uses crt;
var n,i,dem,maxd,vt,vt1,vt2,vt3,maxa,dem1:integer;
a,b,c,d,e,f,g:array[1..100]of integer;
mind,mina:int64;
begin
clrscr;
repeat
write('n='); readln(n);
if (n<=0) or (n>100) then writeln('nhap lai');
until (0<n) and (n<=100);
for i:=1 to n do
begin
write('a[',i,']='); readln(a[i]);
end;
{--------------------------so-hang-duong-----------------------}
dem:=0;
for i:=1 to n do
if a[i]>0 then
begin
inc(dem);
b[dem]:=a[i];
end;
maxd:=0;
for i:=1 to dem do
if maxd<b[i] then maxd:=b[i];
vt:=0;
for i:=1 to n do
if maxd=a[i] then
begin
vt:=vt+1;
c[vt]:=i;
end;
writeln('so hang duong lon nhat cua day la: ',maxd);
writeln('vi tri cua no lan luot la: ');
for i:=1 to vt do
write(c[i]:4);
writeln;
mind:=maxint;
for i:=1 to dem do
if mind>b[i] then mind:=b[i];
vt1:=0;
for i:=1 to n do
if mind=a[i] then
begin
inc(vt1);
d[vt1]:=i;
end;
writeln('so hang duong nho nhat cua day la: ',mind);
writeln('vi tri cua no lan luot la: ');
for i:=1 to vt1 do
write(d[i]:4);
{------------------------so-hang-am--------------------------}
writeln;
dem1:=0;
for i:=1 to n do
if a[i]<0 then
begin
inc(dem1);
e[dem1]:=a[i];
end;
maxa:=e[1];
for i:=1 to dem1 do
if maxa<e[i] then maxa:=e[i];
vt2:=0;
for i:=1 to n do
if maxa=a[i] then
begin
inc(vt2);
f[vt2]:=i;
end;
writeln('so hang am lon nhat cua day la: ',maxa);
writeln('vi tri cua no lan luot la: ');
for i:=1 to vt2 do
write(f[i]:4);
writeln;
mina:=maxint;
for i:=1 to dem1 do
if mina>e[i] then mina:=e[i];
vt3:=0;
for i:=1 to n do
if mina=a[i] then
begin
inc(vt3);
g[vt3]:=i;
end;
writeln('so hang am nho nhat cua day la: ',mina);
writeln('vi tri cua no lan luot la: ');
for i:=1 to vt3 do
write(g[i]:4);
readln;
end.
Bài 2:
uses crt;
var a,vt:array[1..10]of integer;
i,x,dem:integer;
begin
clrscr;
for i:=1 to 10 do
begin
write('a[',i,']='); readln(a[i]);
end;
write('nhap x='); readln(x);
dem:=0;
for i:=1 to 10 do
if a[i]=x then
begin
inc(dem);
vt[dem]:=i;
end;
if dem=0 then writeln('khong co gia tri ',x,' trong day')
else
begin
writeln('vi tri cua ',x,' trong day lan luot la:');
for i:=1 to dem do
write(vt[i]:4);
end;
readln;
end.
Bài 3:
uses crt;
var a:array[1..100,1..100]of integer;
n,i,j,t:integer;
begin
clrscr;
write('n='); readln(n);
for i:=1 to n do
for j:=1 to n do
begin
write('a[',i,',',j,']='); readln(a[i,j]);
end;
{----------------------------xuat-----------------------------}
writeln('ma tran ban vua nhap la:');
for i:=1 to n do
begin
for j:=1 to n do
write(a[i,j]:4);
writeln;
end;
{------------------tong-cac-phan-tu-tren-duong-cheo-chinh------------------}
t:=0;
for i:=1 to n do
for j:=1 to n do
if i=j then t:=t+a[i,j];
writeln('tong cac phan tu tren duong cheo chinh la: ',t);
readln;
end.