Viết chương trình cho phép nhập vào dãy số nguyên gồm n phần tử và thực hiện các yêu cầu sau: a, Tính và in ra màn hình: Trung bình cộng của các phần tử là số đối xứng b, Tìm và in ra các số ở vị trí chính phương trong dãy trên

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cau b)

#include <iostream> 
#include <math.h> 
#include <algorithm> 
using namespace std; 
int main(){
     int n; 
     cin >> n; 
     int a[100000]; 
     int ans; 
     for(int i = 0; i < n; i++){
         cin >> a[i]; 
         ans = sqrt(a[i]); 
         if(pow(ans,2) == a[i]){
             cout << i + 1 << " "; 
         }
     }
     return 0; 
}

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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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