487-3279_牛客博客

题解：
/*
*@Author:   STZG
*@Language: C++
*/
#include <bits/stdc++.h>
#include<iostream>
#include<algorithm>
#include<cstdlib>
#include<cstring>
#include<cstdio>
#include<string>
#include<vector>
#include<bitset>
#include<queue>
#include<deque>
#include<stack>
#include<cmath>
#include<list>
#include<map>
#include<set>
//#define DEBUG
#define RI register int
#define endl "\n"
using namespace std;
typedef long long ll;
//typedef __int128 lll;
const int N=100000+10;
const int M=100000+10;
const int MOD=1e9+7;
const double PI = acos(-1.0);
const double EXP = 1E-8;
const int INF = 0x3f3f3f3f;
int t,n,m,k,p,l,r,u,v;
int ans,cnt,flag,temp,sum;
int a[N];
char str;
struct node{};
char convert(char c){
         if(c <= 'C') return '2';
         else if(c <= 'F') return '3';
         else if(c <= 'I') return '4';
         else if(c <= 'L') return '5';
         else if(c <= 'O') return '6';
         else if(c <= 'S') return '7';
         else if(c <= 'V') return '8';
         else if(c <= 'Y') return '9';
}
int main()
{
#ifdef DEBUG
	freopen("input.in", "r", stdin);
	//freopen("output.out", "w", stdout);
#endif
    //ios::sync_with_stdio(false);
    //cin.tie(0);
    //cout.tie(0);
    //scanf("%d",&t);
    //while(t--){
    int N;
    bool flag = false;
    cin >> N;
    map<string,int> telp_count;
    while(N--){
        string s,res;
        cin >> s;
        int i = 0;
       for(string::iterator s_it = s.begin();s_it != s.end();++s_it){
             if(*s_it >= '0' && *s_it <= '9') res.push_back(*s_it);
             if(*s_it >= 'A' && *s_it <= 'Z') res.push_back(convert(*s_it));
        }
        res.insert(3,1,'-');
        ++telp_count[res];
    }
    map<string,int>::iterator map_it = telp_count.begin();
    for(;map_it != telp_count.end();++map_it)
        if(map_it->second >= 2){
            flag = true;
            cout << map_it->first << " " << map_it->second << endl;
        }
    if(!flag)
        cout << "No duplicates." << endl;
    //}

#ifdef DEBUG
	printf("Time cost : %lf s\n",(double)clock()/CLOCKS_PER_SEC);
#endif
    //cout << "Hello world!" << endl;
    return 0;
}