문제 링크 : boj.kr/10866난이도 : S4태그 : 덱코드#include #define all(x) (x).begin(), (x).end()#define INF 0x7FFFFFFFusing namespace std;using ll = long long;using ld = long double;using pii = pair;using pll = pair;int main(){ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); deque _dq; int n; cin >> n; while(n--) { string inst; cin >> inst; if(inst == "push_front") { ..