히더

출처 : https://www.swexpertacademy.com/main/code/problem/problemDetail.do?contestProbId=AWRKNev6fqYDFAV8 #include #include #include using namespace std; int result, arr[26];string s; int main(){int T; cin >> T; int t = 1;while (T--){cin >> s; result = 0; memset(arr, 0, sizeof(arr));for (int i = 0; i < s.size();i++) arr[s.at(i) - 97]++;for (int i = 0; i < 26;i++)result += ((arr[i] * (arr[i] + 1)) /..