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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. #define int long long
  4. bool valid(int n){
  5.     // check palindrome
  6.     int temp = n, rev = 0;
  7.     while(temp > 0){
  8.         rev = rev * 10 + temp % 10;
  9.         temp /= 10;
  10.     }
  11.     return n == rev; // return true if n is a palindrome
  12. }
  13. void sol(){
  14.     int n;
  15.     cin >> n;
  16.     int a[n];
  17.     for(int &i:a) cin >> i;
  18.     int mx = 0;
  19.     for(int i = 0; i < n; i++){
  20.         if(valid(a[i])) mx += a[i];
  21.     }
  22.     cout << mx << endl;
  23. }
  24. signed main(){
  25.     ios_base::sync_with_stdio(false);
  26.     cin.tie(NULL);
  27.     cout.tie(NULL);
  28.     int t = 1;
  29.     cin >> t;
  30.     while(t--){
  31.         sol();
  32.     }
  33.     return 0;
  34. }
Runtime error #stdin #stdout 0.02s 5284KB
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Standard input is empty
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Standard output is empty
https://ideone.com/3PxfAB
language:
C++ (gcc 8.3)
created:
61 days ago
visibility:
secret

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