AtCoder Beginner Contest 252 - AtCoder の参加メモ B - Takahashi's Failure #include <bits/stdc++.h> using namespace std; #define REP(i,n) for(int i=0;i<(n);i++) int main() { int n,k; cin >> n >> k; vector<int> a(n),b(k); int mx = -1; REP(i,n) { cin >> a[i]; mx</int></bits/stdc++.h>…