744. Sum of first K even-length Palindrome numbers
class Solution {
public:
/**
* @param k: Write your code here
* @return: the sum of first k even-length palindrome numbers
*/
int sumKEven(int k) {
//
int res = 0;
for(int i = 1; i <= k; i++){
int temp = i;
int pali = i;
while(temp > 0){
pali = pali*10 + temp%10;
temp /= 10;
}
res += pali;
}
return res;
}
};
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