제출 #92176

#제출 시각아이디문제언어결과실행 시간메모리
92176KastandaZamjena (COCI18_zamjena)C++11
70 / 70
139 ms7672 KiB
#include<bits/stdc++.h> using namespace std; const int N = 50005; int n, ts, P[N + N], C[N + N]; string A[N], B[N]; map < string , int > M; int Find(int v) { return (P[v] ? (P[v] = Find(P[v])) : v); } int main() { ios::sync_with_stdio(0); cin.tie(0); cin >> n; for (int i = 1; i <= n; i++) { cin >> A[i]; if (!M.count(A[i])) M[A[i]] = ++ ts; } for (int i = 1; i <= n; i++) { cin >> B[i]; if (!M.count(B[i])) M[B[i]] = ++ ts; if (Find(M[A[i]]) != Find(M[B[i]])) P[Find(M[A[i]])] = Find(M[B[i]]); } for (auto X : M) if (X.first[0] <= '9') C[Find(X.second)] ++; for (int i = 1; i <= ts; i++) if (C[i] >= 2) return !printf("NE\n"); return !printf("DA\n"); }
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