Submission #919128

#	Time	Username	Problem	Language	Result	Execution time	Memory
919128		TIN	Utrka (COCI14_utrka)	C++17	0 / 80	2 ms	3672 KiB

utrka

#include <bits/stdc++.h>

using namespace std;

#define FNAME "test"

const int N = 1e5 + 5;

int n;
string s[N];
unordered_map<string, int> mp;
bool b[N];

void Task() {
	ios_base::sync_with_stdio(false);
	cin.tie(0); cout.tie(0);
	cout << fixed << setprecision(9);
	if (fopen(FNAME".inp","r")) {
		freopen(FNAME".inp","r",stdin);
		freopen(FNAME".out","w",stdout);
	}
}

void Solve() {
	//Your Code
	cin >> n;
	for (int i = 1; i <= n; i++) {
		cin >> s[i];
		mp[s[i]] = i;
	}
	memset(b, false, sizeof(b));
	for (int i = 1; i < n; i++) {
		string t;
		cin >> t;
		b[mp[t]] = true;
	}
	for (int i = 1; i <= n; i++) {
		if (!b[i]) {
			cout << s[i];
		}
	}
}

int main() {
	Task();
	Solve();
	cerr << "\nTime run: " << 1000*clock()/CLOCKS_PER_SEC << "ms";
	return 37^37;
}

Compilation message (stderr)

utrka.cpp: In function 'void Task()':
utrka.cpp:19:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |   freopen(FNAME".inp","r",stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
utrka.cpp:20:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |   freopen(FNAME".out","w",stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 80