Dãy đối xứng (H047) Cho một dãy N số nguyên a1, a2, …, aN (|ai| ≤ 109). Kiểm tra dãy đã cho có phải dãy đối xứng hay không ? Ví dụ: dãy (1 3 3 1) và dãy (1 6 9 6 1) là các dãy đối xứng, dãy (2 5 7) là dãy không đối xứng, dãy có 1 phần tử duy nhất là dãy đối xứng. C++

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#include <iostream>
using namespace std;

int n;
string x, s;

int main() {
    cin >> n;
    for(int i = 0; i < n; cin >> x, s += x, ++i);
    
    for(int i = 0; i < s.size() / 2; ++i) {
        if(s[i] != s[s.size() - i - 1]) return cout << "NO", 0;
    }
    cout << "YES";
}

#include <bits/stdc++.h>
using namespace std;
long long n,kt;
int main()
{
    cin >> n;
    long long a[n];
    long long b[n];
    for (long long i=0; i<n; i++)
    {
        cin >> a[i];
        b[i]=a[i];
    }
    reverse(b,b+n);
    for (long long i=0; i<n; i++)
        if (not(a[i]==b[i]))
            kt++;
    if (kt==0)
        cout << "Là dãy đối xứng";
    else
        cout << "Không là dãy đối xứng";
}

*Mình không biết mấy cái true false trong C++ nên dùng tạm biến kt nhé :>

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giup e voi I/ Supply the correct form of the verbs in brackets 1. You (think) ……………………… collecting stamps costs much money? 2. Every year, my mother (give) ……………………… me a nice doll on my birthday. 3. Jenny says she loves collecting pens but she (not/continue) ……………………… this hobby from next year. 4. If you wash your hands more, you (have)……………………. less chance of catching flu. 5. Getting plenty of rest is very good. It (help)…………………. you to avoid depression. 6. Mr. John (be) ……………………… principal of our school since last year. 7. I (see) ……………………… a car accident on this corner yesterday. 8. We like (come)……………………to school by bus, but we hate (stand)………………………. and (wait) …………………… in the rain. 9. ……………………… (you/ ever/ meet) anyone famous? 10. My mother (come) ……………………… to stay with us next weekend. 11. When he lived in Manchester, he (work) ……………………… in a bank. 12. We (be) ……………………… students for four years. 13. We are planting trees around our school now. Our school (be) ……………………… surrounded by a lot of green trees. 14. What ……………………… your father usually ……………………… (do) in the evenings? 15. My sister likes (cook) ……………………… very much. She can cook many good foods. 16. My father says when he's retired, he (go) …………………… back to his village to do the gardening. 17. They want (buy) ……………………… some meat for dinner. 18. Linh is my best friend. We (know) ……………………… each other for 5 years. 19. I enjoy (fish) ……………………… because it is relaxing. 20. How about (go) ……………………… to the movie theatre?

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