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  1. #include <stdio.h>
  2. #include <string.h>
  3. #include <stdbool.h>
  4.  
  5. bool is_palindrome(char *str) {
  6.     int len = strlen(str);
  7.     for (int i = 0; i < len / 2; i++) {
  8.         if (str[i] != str[len - 1 - i]) {
  9.             return false;
  10.         }
  11.     }
  12.     return true;
  13. }
  14.  
  15. int main() {
  16.     int T;
  17.     scanf("%d", &T);
  18.     while (T--) {
  19.         char s1[10001], s2[10001];
  20.         scanf("%s %s", s1, s2);
  21.         char concat1[20001], concat2[20001];
  22.         strcpy(concat1, s1);
  23.         strcat(concat1, s2);
  24.         strcpy(concat2, s2);
  25.         strcat(concat2, s1);
  26.         if (is_palindrome(concat1) || is_palindrome(concat2)) {
  27.             printf("YES\n");
  28.         } else {
  29.             printf("NO\n");
  30.         }
  31.     }
  32.     return 0;
  33. }
Success #stdin #stdout 0s 5316KB
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stdin
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2
aba
baba
xy
zw
stdout
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YES
NO
https://ideone.com/DKzzic
language:
C (gcc 8.3)
created:
5 days ago
visibility:
public

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