uses crt;

var i,n,n,d; integer;

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

begin

clrscr;

readln(n);

for i:=1 to n do 

readln(a[i]);

readln(m);

for i:=1 to n do

if a[i] = m then d:=d+1;

write(d);

readln;

end.

#include <bits/stdc++.h>

using namespace std;

long long n,i,dem,a[10000];

//chuongtrinhcon

bool ktnt(long long n)

{

for (int i=2; i*i<=n; i++)

if (n%i==0) return(false);

return(true);

}

//chuongtrinhchinh

int main()

{

cin>>n;

dem=0;

for (i=1; i<=n; i++)

{

cin>>a[i];

if (a[i]>1 && (ktnt(a[i])==true)) dem++;

}

cout<<dem;

return 0;

}

trên c++

 

2:

#include <bits/stdc++.h>

using namespace std;

long long a[1000],n,i,dem;

int main()

{

cin>>n;

for (i=1; i<=n; i++) cin>>a[i];

dem=0;

for (i=1; i<=n; i++)

if (a[i]%2==0 && a[i]<0) dem++;

cout<<dem;

return 0;

}

#include <bits/stdc++.h>

using namespace std;

long long n,i,t;

int main()

{

cin>>n;

if ((n>10) and (n<70))

{

t=0;

for (i=1; i<=n; i++)

if (i%2==0) t=t+i;

cout<<t;

}

else cout<<"Nhap lai";

return 0;

}

Program Ting_tong;

uses crt;

var a,b: real;

begin

clrscr;

write('nhap so a ='); realdn(a);

write('nhap so b ='); realdn(b);

writeln('Tong cua 2 so nguyen ',a,' va ',b,' =' ' ,a+b);

readln

end.

#include <bits/stdc++.h>

using namespace std;

int a,b;

int main()

{

cin>>a>>b;

cout<<pow(a,b);

return 0;

}

Code:#include <stdio.h> struct phanso {int tu;int mau;}; int ucln(int a, int b) {while(a!=b){if(a>b)a=a-b;elseb=b-a;}return a;} struct phanso tg(struct phanso a) {int c = ucln(a.tu, a.mau);a.tu /= c;a.mau /= c;return a;} struct phanso tong(struct phanso a, struct phanso b) {struct phanso s;s.tu = (a.tu * b.mau) + (b.tu * a.mau);s.mau = a.mau * b.mau;return s;} main() {struct phanso ps[100];struct phanso s;int n, x = 0, maxnum;double gtps[100], max;unsigned int i;printf("Nhap n: "); scanf("%d", &n);for (i = 0; i < n; i++) {printf("Nhap tu so cua phan so so %d: ", i + 1); scanf("%d", &ps[i].tu);printf("Nhap mau so cua phan so so %d: ", i + 1); scanf("%d", &ps[i].mau);}s = ps[0];for (i = 1; i < n; i++) {s = tong(s, ps[i]);}printf("\n");printf("a) Tong: %d/%d\n", tg(s).tu, tg(s).mau);for (i = 0; i < n; i++) {if (ps[i].mau != tg(ps[i]).mau) {x += 1;}}printf("b) So phan so chua toi gian: %d\n", x);for (i = 0; i < n; i++) {gtps[i] = (double)ps[i].tu / (double)ps[i].mau;}max = gtps[0];for (i = 1; i < n; i++) {if (max < gtps[i]) {maxnum = i;max = gtps[i];}}printf("c) Phan so co gia tri lon nhat la: %d/%d", ps[maxnum].tu, ps[maxnum].mau);return 0;} Ảnh: