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#include <bits/stdc++.h>
using namespace std;
long long a[5],i,n,t;
int main()
{
n=5;
for (i=1; i<=n; i++)
cin>>a[i];
for (i=1; i<=n; i++) cout<<a[i]<<" ";
cout<<endl;
t=0;
for (i=1; i<=n; i++) t+=a[i];
cout<<t<<endl;
for (i=1; i<=n; i++)
if (i%2!=0) cout<<a[i]<<" ";
return 0;
}
#include <bits/stdc++.h>
using namespace std;
int B[100],i,n,t=0,s=1;
int main()
{
cin>>n;
for (int i=1; i<=n; i++) cin>>B[i];
for (int i=1; i<=n; i++)
{
if (i%2==0) s*=A[i];
else t+=A[i];
}
cout<<t<<" "<<s;
}
#include <bits/stdc++.h>
using namespace std;
long long n,i,t,dem,x;
int main()
{
cin>>n;
t=0;
dem=0;
for (i=1; i<=n; i++)
{
cin>>x;
t=t+x;
if (x%2==0) dem++;
}
cout<<t<<endl;
cout<<dem;
return 0;
}
program BaiToanMang;
var
A: array[1..100] of integer;
N, i, demChan, tongLeChia3: integer;
begin
write('Nhap so phan tu cua mang: ');
readln(N);
writeln('Nhap cac phan tu cua mang: ');
for i := 1 to N do
begin
write('a[', i, ']= ');
readln(A[i]);
end;
tongLeChia3 := 0;
for i := 1 to N do
begin
if (A[i] mod 2 = 1) and (A[i] mod 3 = 0) then
begin
tongLeChia3 := tongLeChia3 + A[i];
end;
end;
writeln('Tong cac so le chia het cho 3: ', tongLeChia3);
demChan := 0;
for i := 2 to N do
begin
if (A[i] mod 2 = 0) and (i mod 2 = 1) then
begin
demChan := demChan + 1;
end;
end;
writeln('So phan tu chan o vi tri le: ', demChan);
writeln('Cac so chan chia het cho 5: ');
for i := 1 to N do
begin
if (A[i] mod 2 = 0) and (A[i] mod 5 = 0) then
begin
write(A[i], ' ');
end;
end;
end.
ko bt đúng ko ko dùng pascal nhiều
#include <bits/stdc++.h>
using namespace std;
long long a[10000],i,n,t1,t2,dem1,dem2;
int main()
{
cin>>n;
for (i=1; i<=n; i++)
cin>>a[i];
dem1=0;
dem2=0;
t1=0;
t2=0;
for (i=1; i<=n; i++)
{
if (a[i]>0)
{
dem1++;
t1+=a[i];
}
if (a[i]<0)
{
dem2++;
t2+=a[i];
}
}
long long t3=0;
for (i=1; i<=n; i++)
if (i%2==1) t3+=a[i];
long long t4=0;
for (i=1; i<=n; i++)
if (i%2==1 && a[i]%2==0) t4+=a[i];
cout<<t1<<" "<<t2<<endl;
cout<<dem1<<" "<<dem2<<endl;
cout<<t3<<endl;
cout<<t4<<endl;
for (i=1; i<=n; i++)
if (a[i]%3==0) cout<<a[i]<<" ";
return 0;
}
Bài 1:
#include <bits/stdc++.h>
using namespace std;
long long x,n,i,t;
int main()
{
cin>>n;
t=0;
for (i=1; i<=n; i++)
{
cin>>x;
if ((x<0) and (x%2!=0)) t=t+x;
}
cout<<t;
return 0;
}
#include <bits/stdc++.h>
using namespace std;
long long n,i,nn,t1,t2,dem1,dem2,a[1000];
int main()
{
cin>>n;
for (i=1; i<=n; i++) cin>>a[i];
nn=a[1];
for (i=1; i<=n; i++) nn=min(nn,a[i]);
cout<<nn<<endl;
for (i=1; i<=n;i++)
if (a[i]%2==0) cout<<a[i]<<" ";
cout<<endl;
for (i=1; i<=n;i++)
if (a[i]%2!=0) cout<<a[i]<<" ";
cout<<endl;
t1=0;
t2=0;
dem1=0;
dem2=0;
for (i=1; i<=n; i++)
{
if (a[i]%2==0)
{
t1+=a[i];
dem1++;
}
else
{
t2+=a[i];
dem2++;
}
}
cout<<t1<<" "<<dem1<<endl;
cout<<t2<<" "<<dem2;
return 0;
}
tham khảo
#include <bits/stdc++.h>
using namespace std;
long long n,i,nn,t1,t2,dem1,dem2,a[1000];
int main()
{
cin>>n;
for (i=1; i<=n; i++) cin>>a[i];
nn=a[1];
for (i=1; i<=n; i++) nn=min(nn,a[i]);
cout<<nn<<endl;
for (i=1; i<=n;i++)
if (a[i]%2==0) cout<<a[i]<<" ";
cout<<endl;
for (i=1; i<=n;i++)
if (a[i]%2!=0) cout<<a[i]<<" ";
cout<<endl;
t1=0;
t2=0;
dem1=0;
dem2=0;
for (i=1; i<=n; i++)
{
if (a[i]%2==0)
{
t1+=a[i];
dem1++;
}
else
{
t2+=a[i];
dem2++;
}
}
cout<<t1<<" "<<dem1<<endl;
cout<<t2<<" "<<dem2;
return 0;
}
uses crt;
var a:array[1..100]of integer;
i,n,min,t1,t2,dem1,dem2: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);
writeln('Cac so chan la: ');
for i:=1 to n do
if a[i] mod 2=0 then write(a[i]:4);
writeln;
writeln('Cac so le la: ');
for i:=1 to n do
if a[i] mod 2<>0 then write(a[i]:4);
writeln;
t1:=0;
t2:=0;
for i:=1 to n do
begin
if a[i] mod 2=0 then t1:=t1+a[i]
else t2:=t2+a[i];
end;
writeln(t1,' ',t2);
dem1:=0;
dem2:=0;
for i:=1 to n do
begin
if a[i] mod 2=0 then dem1:=dem1+1
else dem2:=dem2+1;
end;
writeln(dem1,' ',dem2);
readln;
end.
var a:array[1..100] of integer;
i,n,S,d:byte;
begin
write(' n = '); readln(n);
for i:=1 to n do begin
write('A[',i,'] = ');
readln(A[i]);
end;
d:=0; S:=0;
for i:=1 to n do if A[i] mod 2 = 0 then begin
d:=d+1;
S:=S+A[i];
end;
write('Dãy có ',d,' phần tử là số chẵn và tổng của chúng là : S = ',S);
readln
end.
uses crt;
var a:array[1..100]of integer;
i,n,dem,t:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
dem:=0;
for i:=1 to n do
if a[i] mod 2=0 then inc(dem);
writeln('So cac phan tu chan la: ',dem);
t:=0;
for i:=1 to n do
if i mod 2=1 then t:=t+a[i];
writeln('Tong cac phan tu o vi tri le la: ',t);
readln;
end.