Submission #1276145

#	Time	Username	Problem	Language	Result	Execution time	Memory
1276145		chanhchuong123	Zamjena (COCI18_zamjena)	C++20	70 / 70	89 ms	15156 KiB

zamjena

#include<bits/stdc++.h>
using namespace std;

const bool multiTest = false;
#define task "C"
#define fi first
#define se second
#define MASK(i) (1LL << (i))
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define BIT(mask, i) ((mask) >> (i) & 1)

template<typename T1, typename T2> bool minimize(T1 &a, T2 b) {
	if (a > b) a = b; else return 0; return 1;
}
template<typename T1, typename T2> bool maximize(T1 &a, T2 b) {
	if (a < b) a = b; else return 0; return 1;
}

const int MAX = 50050;
int N;
string s[2][MAX];
map<string, bool> used;
map<string, vector<string>> adj;

bool isNumber(const string &s) {
    return '0' <= s[0] && s[0] <= '9';
}

void fix(string &s) {
    reverse(all(s)); while (s.size() && s.back() == '0') s.pop_back();
    if (s.empty()) s.push_back('0');
    reverse(all(s));
}

void dfs(string u, string value) {
    if (used[u]) return; used[u] = true;
    if (isNumber(u)) {
        if (u != value) {
            cout << "NE";
            exit(0);
        }
    }
    for (string v: adj[u]) {
        dfs(v, value);
    }
}

void process(void) {
    cin >> N;
    for (int i = 0; i < 2; ++i) {
        for (int j = 0; j < N; ++j) {
            cin >> s[i][j];
            if (isNumber(s[i][j])) fix(s[i][j]);
        }
    }
    for (int i = 0; i < N; ++i) {
        if (isNumber(s[0][i]) && isNumber(s[1][i])) {
            if (s[0][i] != s[1][i]) {
                cout << "NE";
                return;
            }
        }
        adj[s[0][i]].push_back(s[1][i]);
        adj[s[1][i]].push_back(s[0][i]);
    }
    for (int i = 0; i < 2; ++i) {
        for (int j = 0; j < N; ++j) if (isNumber(s[i][j])) {
            dfs(s[i][j], s[i][j]);
        }
    }
    cout << "DA";
}

int main(void) {
	ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
	if (fopen(task".inp", "r")) {
		freopen(task".inp", "r",  stdin);
		freopen(task".out", "w", stdout);
	}

	int nTest = 1; if (multiTest) cin >> nTest;
	while (nTest--) {
		process();
	}

	return 0;
}

Compilation message (stderr)

zamjena.cpp: In function 'int main()':
zamjena.cpp:78:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   78 |                 freopen(task".inp", "r",  stdin);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
zamjena.cpp:79:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   79 |                 freopen(task".out", "w", stdout);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

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