제출 #1085903

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1085903		lmaobruh	Zamjena (COCI18_zamjena)	C++14	56 / 70	45 ms	65536 KiB

zamjena

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define fo(i, a, b) for (int i = (a); i <= (b); ++i)
#define fd(i, a, b) for (int i = (a); i >= (b); --i)
#define ii pair<int, int>
#define fi first
#define se second
#define pb push_back
#define all(x) x.begin(), x.end()
const int N = 1e6+5;

int n, cnt = 0;
string a[N], b[N];
map<string, bool> vis;
map<string, vector<string>> g;

bool allDigit(string &s) {
    for (char c : s) if(c < '0' || c > '9') return 0;
    return 1;
}

void dfs(string u) {
    vis[u] = 1;
    cnt += allDigit(u);
    for (string &v : g[u]) if (!vis[v]) dfs(v);
}

int32_t main() {
    cin.tie(0)->sync_with_stdio(0);
    if (fopen("A.inp", "r")) {
        freopen("A.inp", "r", stdin);
//        freopen("A.out", "w", stdout);
    }
    cin >> n;
    fo(i, 1, n) cin >> a[i];
    fo(i, 1, n) cin >> b[i];
    fo(i, 1, n) if (a[i] != b[i])
        g[a[i]].pb(b[i]), g[b[i]].pb(a[i]);
    fo(i, 1, n) if (!vis[a[i]]) {
        cnt = 0;
        dfs(a[i]);
        if (cnt > 1) {
            cout << "NE";
            return 0;
        }
    }
    cout << "DA";
}

컴파일 시 표준 에러 (stderr) 메시지

zamjena.cpp: In function 'int32_t main()':
zamjena.cpp:32:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   32 |         freopen("A.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 14 / 14
• Subtask 2: 14 / 14
• Subtask 3: 14 / 14
• Subtask 4: 14 / 14
• Subtask 5: 0 / 14