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用C++STL写好容易超时啊C++STL写思路蛮自然也方便……就是超时得厉害 郁闷…… #include <iostream> #include <vector> #include <map> using namespace std; void delcon(string &str) { int index = 0; while(index < str.length()) { if(str[index] == '-') { str.erase(index,1); continue; } ++index; } } void pout_book(map<string, int> telbook) { map<string, int>::iterator bookIter = telbook.begin(); for(;bookIter != telbook.end(); ++bookIter) { string tempStr = bookIter->first; if(bookIter->second>1) { tempStr.insert(3,"-"); cout<<tempStr<<" "<<bookIter->second<<endl; } } } void trance(string &str) { for(int index=0; index < str.length(); ++index) { switch(str[index]){ case 'A':case 'B':case 'C': (str[index]) = '2';break; case 'D':case 'E':case 'F': (str[index]) = '3';break; case 'G':case 'H':case 'I': (str[index]) = '4';break; case 'J':case 'K':case 'L': (str[index]) = '5';break; case 'M':case 'N':case 'O': (str[index]) = '6';break; case 'P':case 'R':case 'S': (str[index]) = '7';break; case 'T':case 'U':case 'V': (str[index]) = '8';break; case 'W':case 'X':case 'Y': (str[index]) = '9';break; default:break; } } } int main() { int turns = 0; map<string,int> telBook; cin>>turns; for(;turns > 0; --turns) { string curStr(""); cin>>curStr; delcon(curStr); trance(curStr); ++telBook[curStr]; } pout_book(telBook); } Followed by:
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