zoukankan      html  css  js  c++  java
  • PAT 1120 Friend Numbers

    1120 Friend Numbers (20 分)
     

    Two integers are called "friend numbers" if they share the same sum of their digits, and the sum is their "friend ID". For example, 123 and 51 are friend numbers since 1+2+3 = 5+1 = 6, and 6 is their friend ID. Given some numbers, you are supposed to count the number of different frind ID's among them.

    Input Specification:

    Each input file contains one test case. For each case, the first line gives a positive integer N. Then N positive integers are given in the next line, separated by spaces. All the numbers are less than 1.

    Output Specification:

    For each case, print in the first line the number of different frind ID's among the given integers. Then in the second line, output the friend ID's in increasing order. The numbers must be separated by exactly one space and there must be no extra space at the end of the line.

    Sample Input:

    8
    123 899 51 998 27 33 36 12
    

    Sample Output:

    4
    3 6 9 26
    #include<bits/stdc++.h>
    using namespace std;
    typedef long long ll;
    
    
    
    
    
    int main(){
        int t;
        cin >> t;
        set<int> st;
    
        while(t--){
            string s;
            cin >> s;
            int sum = 0;
            for(int i=0;i < s.size();i++){
                sum += s[i] - '0';
            }
            st.insert(sum);
        }
    
        cout << st.size() << endl;
        int cnt = 0;
    
        for(auto it=st.begin();it!=st.end();it++){
            cout << *it;
            cnt++;
            if(cnt!=st.size())cout << " ";
        }
    
        return 0;
    }

    这题白给

    最后一行无空格可以这样写

    if(it != s.begin()) printf(" ");
     
  • 相关阅读:
    WINFORM中的COMBOX模糊查询
    C#的XML序列化及反序列化
    C#调用webservice简单实例
    ORACLE简单触发器
    关于搭建webservice以及无法通过URL访问的简易解决办法
    URL类型入参串调用接口
    起点
    dom的操作
    固定定位
    字体、文本属性和背景图定位
  • 原文地址:https://www.cnblogs.com/cunyusup/p/10791296.html
Copyright © 2011-2022 走看看