I am Hoang

truong does coding

include <iostream>

using namespace std;
int main() {
int x;
int result;
cin >> x;
result = x*2;
cout << result << endl;
return 0;
}

Long vui tươi

include <iostream>

include <string>

using namespace std;

bool ktra( int b[] , int len , int k )
{
long dem=0,tong=0;
if (len==2){
if (b[0] ==0 || b[1]==0) return false;
}
for (int i=0;i<len;i++) { tong+=b[i]; if (tong>k) return false;
}
if (tong!=k) return false;
return true;
}

int main()
{
//freopen("SUBSTR.INP","r",stdin);
//freopen("SUBSTR.OUT","w",stdout);
long n,dem2=0;
string a;
cin>>n;
if (n==0) return 0;
cin>>a;
int b[a.length()];
for (int i=a.length()-1;i>=0;i--)
{
b[i]=a[i]-'0';
}
//xuly
if (ktra(b,a.length(),n)) dem2++;
for (int len=2;len<a.length();len++)
{
int c[len];
for (int i=0;i<a.length()-1 ;i++) { int temt2=len; while (temt2>0)
{
c[temt2-1]=b[i+temt2-1];
temt2--;
}
if (ktra(c,len,n)) dem2++;
}
}
cout<<dem2;
return 0;

}

import java.util.Scanner;

public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int N = sc.nextInt();
int x = sc.nextInt();
int arr[] = new int[N];
for(int i = 0; i < N; i++) {
arr[i] = sc.nextInt();
}
check(arr, x);
}
public static void check(int arr[], int x) {
int i = 0;
int j = arr.length - 1;
while (i < j) {
if((arr[i] + arr[j]) == x) {
System.out.println((i + 1)+ " " + (j + 1));
break;
}
if((arr[i] + arr[j] > x)) {
j -= 1;
} else {
i += 1;
}
}
if(i == j) {
System.out.println("NO solution");
}
}
}

Hi Everyone, Iam TruongVinh!

user = truongvinh244

FL-Me in linkbio.co/truongvinh244
github.com/truongvinh244]