Easy C++ Solution
class Solution {\npublic:\n\n    int countSeniors(vector& details) {\n      \n\t  int count = 0 ; \n        for(int i=0 ;i60) count++ ; }\n        return count 
class Solution {\npublic:\n\n    int countSeniors(vector<string>& details) {\n      \n\t  int count = 0 ; \n        for(int i=0 ;i<details.size();i++){\n           int a = (details[i][11]-\'0\')*10 + (details[i][12]-\'0\');\n            if(a>60) count++ ; }\n        return count ;  \n    }\n    \n};
['Array', 'C']