問題はこちらからどうぞ. abc063.contest.atcoder.jp 問題A: Restricted #include <iostream> using namespace std; int main(){ int a, b; cin >> a >> b; if(10 <= a + b) cout << "error" << endl; else cout << a + b << endl; } 問題B: Varied #include<bits/stdc++.h> #define r</bits/stdc++.h></iostream>…