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  • PAT-Advanced-【1001】A+B Format

    【1001】A+B Format(20分)

     1 #include<iostream>
     2 #include<string>
     3 using namespace std;
     4 int main() {
     5     int a, b;
     6     int sum = 0;
     7     cin >> a >> b;
     8     sum = a + b;
     9     string s = to_string(sum);
    10     for (int i = 0; i < s.length(); i++) {
    11         cout << s[i];
    12         if (s[i] == '-')
    13             continue;
    14         if ((i + 1) % 3 == s.length() % 3 && i != s.length() - 1)
    15             cout << ",";
    16     }
    17     return 0;
    18 }
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  • 原文地址:https://www.cnblogs.com/LiXinjuan/p/15345316.html
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