fork download
copy 
  1. #pragma GCC optimize("Ofast")
  2. #pragma GCC optimize("unroll-loops")
  3. #pragma GCC optimize("inline")
  4. #include<bits/stdc++.h>
  5. using namespace std;
  6. template<class T> struct cLtraits_identity{
  7.   using type = T;
  8. }
  9. ;
  10. template<class T> using cLtraits_try_make_signed =
  11.   typename conditional<
  12.     is_integral<T>::value,
  13.     make_signed<T>,
  14.     cLtraits_identity<T>
  15.     >::type;
  16. template <class S, class T> struct cLtraits_common_type{
  17.   using tS = typename cLtraits_try_make_signed<S>::type;
  18.   using tT = typename cLtraits_try_make_signed<T>::type;
  19.   using type = typename common_type<tS,tT>::type;
  20. }
  21. ;
  22. template<class S, class T> inline auto min_L(S a, T b)
  23. -> typename cLtraits_common_type<S,T>::type{
  24.   return (typename cLtraits_common_type<S,T>::type) a <= (typename cLtraits_common_type<S,T>::type) b ? a : b;
  25. }
  26. #define main dummy_main
  27. int main(){
  28.   return 0;
  29. }
  30. #undef main
  31. class Solution{
  32.   public:
  33.   int longestPalindrome(vector<string>& words){
  34.     int i;
  35.     int j;
  36.     int res = 0;
  37.     int cnt[26][26] = {};
  38.     for(string s : words){
  39.       cnt[s[0]-'a'][s[1]-'a']++;
  40.     }
  41.     for(i=(0);i<(26);i++){
  42.       for(j=(i+1);j<(26);j++){
  43.         res += 4 *min_L(cnt[i][j], cnt[j][i]);
  44.       }
  45.     }
  46.     for(i=(0);i<(26);i++){
  47.       res += 4 * (cnt[i][i] / 2);
  48.       cnt[i][i] %= 2;
  49.     }
  50.     for(i=(0);i<(26);i++){
  51.       if(cnt[i][i]){
  52.         res+=2;
  53.         break;
  54.       }
  55.     }
  56.     return res;
  57.   }
  58. }
  59. ;
  60. // cLay version 20220312-1
  61.  
  62. // --- original code ---
  63. // #define main dummy_main
  64. // {}
  65. // #undef main
  66. // 
  67. // class Solution {
  68. // public:
  69. //   int longestPalindrome(vector<string>& words) {
  70. //     int i, j, res = 0;
  71. //     int cnt[26][26] = {};
  72. //     for(string s : words) cnt[s[0]-'a'][s[1]-'a']++;
  73. //     rep(i,26) rep(j,i+1,26) res += 4 * min(cnt[i][j], cnt[j][i]);
  74. //     rep(i,26){
  75. //       res += 4 * (cnt[i][i] / 2);
  76. //       cnt[i][i] %= 2;
  77. //     }
  78. //     rep(i,26) if(cnt[i][i]) res+=2, break;
  79. //     return res;
  80. //   }
  81. // };
  82.  
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
copy 
Standard input is empty
compilation info 
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/8/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x20): undefined reference to `main'
collect2: error: ld returned 1 exit status
stdout
copy 
Standard output is empty
https://ideone.com/awHLXO
language:
C++ (gcc 8.3)
created:
2 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!